Shortname:    OMNO2
Longname:     OMI/Aura Nitrogen Dioxide (NO2) Total & Troposph.Column 1-Orbit L2 Swath 13x24km
PSF Version:  0.9.25
Date:         27 January 2004
Author(s):    Pepijn Veefkind (KNMI)

PGE Version:               0.9.25
Lead Algorithm Scientist:  Folkert Boersma (KNMI), Jim Gleason (NASA), Pepijn Veefkind (KNMI)
Lead Algorithm Developer:  Pepijn Veefkind (KNMI)
Lead PGE Developer:        Jussi Johansson (SSF)
PGE Developer(s):          Otto Solin (SSF)

Description: >

  This document specifies the product format for the OMNO2A, OMNO2B and
  OMNO2C Level 2 PGEs. These PGEs determine the total column and 
  tropospheric column nitrogen dioxide (NO2) from OMI VIS measurements 
  (Reference 1). The product is stored as one HDF-EOS 5  swath file for 
  each granule (i.e., one orbit) of OMI Level 1B data, and has a size 
  range of 1 to 30 Mb.

Global Metadata:
 - Metadata Name:     InstrumentName
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Valids are "HIRDLS", "MLS", "OMI" and "TES".
   Data Source:       OMNO2A
   Description:       Actual is "OMI" (see Section 6.1 of Reference 2).

 - Metadata Name:     ProcessLevel
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       PCF
   Description:       Actual is "2" (see Reference 7).

 - Metadata Name:     GranuleMonth
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   1 to 12
   Data Source:       OMNO2A
   Description:       The month at the start of the granule.

 - Metadata Name:     GranuleDay
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   1 to 31
   Data Source:       OMNO2A
   Description:       The day of the month at the start of the granule.

 - Metadata Name:     GranuleYear
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   2003 to 2099
   Data Source:       OMNO2A
   Description:       The (four-digit) year at the start of the granule.

 - Metadata Name:     TAI93At0zOfGranule
   Mandatory:         T
   Data Type:         HE5T_NATIVE_DOUBLE
   Number of Values:  1
   Range or Valids:   0.0d+00 to 1.0d+30
   Data Source:       OMNO2A
   Description:       TAI time at 00:00 UTC at date of start of granule.

 - Metadata Name:     PGEVersion
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Range is "0.0.0" to "9.9.99".
   Data Source:       OMNO2A, OMNO2B and OMNO2C
   Description:       Example is "0.9.20" (see Appendix K of Reference 3).

 - Metadata Name:     ProcessingSystem
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Valids are "OFFLINE", "NRT" and "VFD".
   Data Source:       TBD
   Description:       Actual is "OFFLINE" for OSIPS processing.

 - Metadata Name:     NO2ColumnAmountHistogram
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  31
   Range or Valids:   0 to 1000000
   Data Source:       OMNO2A
   Description: >

     Histogram of NO2ColumnAmountInitial between 0 and 3x10^16 
     molecules/cm2, with bins of 1x10^15 molecules/cm^2.

 - Metadata Name:     CloudAlbedo
   Mandatory:         T
   Data Type:         HE5T_NATIVE_FLOAT
   Number of Values:  1
   Range or Valids:   Range is 0.0 to 1.0
   Data Source:       OMCLDO2
   Description:       Cloud albedo as read from the cloud L2 Product.

 - Metadata Name:     UnpolFldNumberOfOrbits
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   Range is 1 to 30
   Data Source:       OMNO2C
   Description: >

     Number of orbit swaths used to construct the 
     smoothed unpolluted field.

 - Metadata Name:     UnpolFldOrbitList
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  UnpolFldNumberOfOrbits
   Range or Valids:   Range is 0 9999
   Data Source:       OMNO2C
   Description: >

     List of orbit numbers used to construct the smoothed 
     unpolluted field (only as many as are specified by 
     UnpolFldNumberOfOrbits are filled in)

 - Metadata Name:     SolarProductMissing
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if the Solar product could not be opened, read, is in unexpected format or the data is missing.
     The Backup product is used in this case.

 - Metadata Name:     SolarProductOutOfDate
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A 
   Description: >

     Set if the difference of the dates of the measurements of the Earth radiance and Solar irradiance is 
     larger than maxSolarAge.

 - Metadata Name:     SolarIrradianceWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A 
   Description: >

     Set if QAPctIrradianceWarning is larger than 0.

 - Metadata Name:     SolarIrradianceWavelengthRegistrationWarning 
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if Set if WavelengthRegistrationCheck parameter for the 
     irradiance spectrum is larger than the OPF threshold.

 - Metadata Name:     BackupSolarProductUsed
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if the backup Solar product is used instead of the 
     normal Solar product.

 - Metadata Name:     ParametersInconsistent
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if there is an inconsistency between the OPF 
     parameters and the parameters of the LUTs.

 - Metadata Name:     RadianceParametersMissing
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if any of the general parameters from the L1B 
     radiance product are missing.

 - Metadata Name:     RadianceScienceQualityFlag
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set to the value set for the radiance product 
     ScienceQualityFlag metadata attribute.

 - Metadata Name:     IrradianceScienceQualityFlag
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set to the value set for the Solar product 
     ScienceQualityFlag metadata attribute.

 - Metadata Name:     CloudProductMissing
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       OMNO2A
   Description: >

     Set if the Cloud product could not be opened, read or is in unexpected format.

 - Metadata Name:     QAPctSunGlint
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 GroundPixelQualityFlags bit 4 is set.

 - Metadata Name:     QAPctEclipse
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 GroundPixelQualityFlags bit 5 is set.

 - Metadata Name:     QAPctIrradianceWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 0 is set.

 - Metadata Name:     QAPctRadianceMissing
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 1 is set.

 - Metadata Name:     QAPctRadianceError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 2 is set.

 - Metadata Name:     QAPctRadianceWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 3 is set.

 - Metadata Name:     QAPctCloudDataError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 4 is set.

 - Metadata Name:     QAPctCloudDataWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 5 is set

 - Metadata Name:     QAPctSnowIceDataError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 6 is set

 - Metadata Name:     QAPctSCDError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 7 is set

 - Metadata Name:     QAPctSCDWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 8 is set

 - Metadata Name:     QAPctIAMFError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 9 is set

 - Metadata Name:     QAPctIAMFWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 10 is set

 - Metadata Name:     QAPctIVCDError   
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 11 is set

 - Metadata Name:     QAPctIVCDWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 12 is set

 - Metadata Name:     QAPctWavelengthRegistrationWarning 
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of ground pixels for which L2 FitQualityFlags bit 13 is set

 - Metadata Name:     QAPctMeasMissing
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 0 is set

 - Metadata Name:     QAPctMeasError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 1 is set

 - Metadata Name:     QAPctMeasWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 2 is set

 - Metadata Name:     QAPctRebinned
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 3 is set

 - Metadata Name:     QAPctSAA
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 4 is set

 - Metadata Name:     QAPctSpacecraftManeuver
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 5 is set

 - Metadata Name:     QAPctInstrumentSettingsError
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 6 is set

 - Metadata Name:     QAPctCloudDataNotSynchronized
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 7 is set

 - Metadata Name:     QAPctAmfTableExtrapolation 
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 0 is set

 - Metadata Name:     QAPctAmfTableValueProblem
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 1 is set 

 - Metadata Name:     QAPctAmfProfileProblem
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 2 is set

 - Metadata Name:     QAPctAmfPollutedHighTerrain
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 3 is set

 - Metadata Name:     QAPctAmfLargeWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 4 is set

 - Metadata Name:     QAPctAmfSmallWarning 
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 5 is set

 - Metadata Name:     QAPctAmfStratWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 6 is set

 - Metadata Name:     QAPctAmfTropWarning
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2B
   Description: >

     Percent of measurements for which L2 AMFQualityFlag bit 7 is set

 - Metadata Name:     QAPctVcdTooSmall
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2C
   Description: >

     Percent of measurements for which L2 UnpolFldQualityFlag bit 0 is set

 - Metadata Name:     QAPctVcdTooLarge
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2C
   Description: >

     Percent of measurements for which L2 UnpolFldQualityFlag bit 1 is set

 - Metadata Name:     OPF_opfVersion
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_fittingWindow
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_fittingWindowColumnRange
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_level1ReadBufferSize
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_level2WriteBufferSize
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_meritFunction
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_fittingPolydegree
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_interpolationMethod
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_amfAngleUpperLimit
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_O3ReferenceTemperature
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_NO2ReferenceTemperature
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_O2O2ReferenceTemperature
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_H2OReferenceTemperature
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_wavelengthRegistrationCheckPixels
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_wavelengthRegistrationLimit
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxNSolarWavelengthsFlagged
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxNEarthWavelengthsFlagged
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxNEarthWavelengthsFlaggedMissing
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxSolarWavelnPrecision
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxEarthWavelnPrecision
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxScdPrecision
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxFitRms
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxSolarAge
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsVCD
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSCD
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsAMF
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsEarthRad
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxEarthRadPrecision
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSolarIrrad
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxSolarIrradPrecision
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsLatitude
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsLongitude
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSZA
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSAZ
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsVZA
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsVAZ
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsRAZ
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSurfaceHeigth
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSurfacePressure
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_limitsSurfaceAlbedo
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxSCDCovariance
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_maxSolarIrradianceAgeInDays
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_automaticQualityFailed
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_automaticQualitySuspect
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoSnow
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoWater
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoLandThreshold
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoWaterThreshold
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoSeaIceNH
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

 - Metadata Name:     OPF_albedoSeaIceSH
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A OPF
   Description:       OMNO2A OPF parameter.

Swath Metadata:

 - Metadata Name:     NumTimes
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of "scan" lines in the swath.

 - Metadata Name:     NumTimesSmallPixel
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of small pixel "scan" lines in the swath. 

 - Metadata Name:     NumLatitude
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       TBD
   Description:       Actual size of the dimension nLatitude. 

 - Metadata Name:     NumUnpolFldCoefs
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       TBD
   Description:       Actual size of the dimension nUnpolFldCoefs.

 - Metadata Name:     VerticalCoordinate
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Valids are "Pressure", "Altitude", "Potential Temperature" and "Total Column".
   Data Source:       OMNO2A
   Description:       Actual is "Total Column" (see Section 6.2 of Reference 2).

Swath Dimensions:

 - Dimension Name:    nXtrack
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    FIXED
   Number of Values:  1
   Range or Valids:   1 to 120
   Data Source:       L1B
   Description:       The number of ground pixels per OMI measurement.

 - Dimension Name:    nTimes
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    UNLIMITED
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of OMI measurements.

 - Dimension Name:    nTimesSmallPixel
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    UNLIMITED
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of OMI small pixel measurements. 

 - Dimension Name:    nSmallPixelPointer
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    FIXED (Actual value is 2)
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       OMNO2A
   Description:       Number of entries used for the small pixel pointer.

 - Dimension Name:    nWavelCheck
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    FIXED
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       OMNO2A
   Description: >

      Number of ground pixels per measurement for which the 
      wavelength check is performed

 - Dimension Name:    nPolynomial
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    FIXED
   Number of Values:  1
   Range or Valids:   1 to 10
   Data Source:       OMNO2A
   Description:       Number of polynomial coefficients used in the DOAS fit. 

 - Dimension Name:    nLatitude
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    UNLIMITED
   Number of Values:  1
   Range or Valids:   1 to 10
   Data Source:       OMNO2C (TBC)
   Description:       Number of Latitudes used for the background NO2 field. 

 - Dimension Name:    nUnpolFldCoefs
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    UNLIMITED
   Number of Values:  1
   Range or Valids:   1 to 10
   Data Source:       OMNO2C (TBC)
   Description:       Number of coefficients used for the smoothed unpolluted NO2 field
     
 - Dimension Name:    Unlimited
   Data Type:         HE5T_NATIVE_INT
   Dimension Type:    UNLIMITED
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       PGE
   Description:       Dimension used internally for unlimited data field dimensions.


Geolocation Fields:

 - Field Name:               Time
   Data Type:                HE5T_NATIVE_DOUBLE
   Dimensions:               nTimes
   Range or Valids:          0.0d+00 to 1.0d+30
   Missing Value:            "-1.2676506002282294d+30"
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    s
   Data Source:              L1B
   Title:                    "Time at Start of Scan (s, TAI93)"
   Unique Field Definition:  Aura-Shared
   Description: >

     The TAI93 time (in s) at the start of the "scan".

 - Field Name:               Latitude
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -90.0 to 90.0.
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    degree
   Data Source:              L1B
   Title:                    "Latitude of the center of the groundpixel "
   Unique Field Definition:  Aura-Shared
   Description: >

     The geodetic latitude (in degrees) at the center of the ground pixel.

 - Field Name:               Longitude
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -180.0 to 180.0.
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    degree
   Data Source:              L1B
   Title:                    "Longitude of the center of the groundpixel"
   Unique Field Definition:  Aura-Shared
   Description: >

     The geodetic longitude (in degrees) at the center of the ground pixel.

 - Field Name:               SpacecraftLatitude
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nTimes
   Range or Valids:          Range is -90.0 to 90.0.
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    degree
   Data Source:              L1B
   Title:                    "Geodetic Latitude above WGS84 ellipsoid "
   Unique Field Definition:  Aura-Shared
   Description: >

     The geodetic latitude (in degrees) of the spacecraft.

 - Field Name:               SpacecraftLongitude
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nTimes
   Range or Valids:          Range is -180.0 to 180.0.
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0e+00
   Units:                    degree
   Data Source:              L1B
   Title:                    "Geodetic Longitude above WGS84 ellipsoid "
   Unique Field Definition:  Aura-Shared
   Description: >

     The geodetic longitude (in degrees) of the spacecraft.

 - Field Name:               SpacecraftAltitude
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nTimes
   Range or Valids:          0.0 to 1.0e+06
   Missing Value:            -1.2676506e+30
   Offset:                   0.0e+00
   Scale Factor:             1.0e+00
   Units:                    m
   Data Source:              L1B
   Title:                    "Altitude above WGS84 ellipsoid "
   Unique Field Definition:  Aura-Shared
   Description: >

     The altitude (in meters) of the spacecraft.

 - Field Name:               SolarZenithAngle
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -90.0 to 90.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    deg
   Data Source:              L1B
   Title:                    "Solar zenith angle at WGS84 ellipsoid for center co-ordinate of the ground pixel "
   Unique Field Definition:  OMI-Specific
   Description: >

     The solar zenith angle (in deg) at the center of the ground pixel.

 - Field Name:               SolarAzimuthAngle
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -180.0 to 180.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    deg
   Data Source:              L1B
   Title:                    " Solar azimuth angle at WGS84 ellipsoid for center co-ordinate of the ground pixel, defined East-of-North "
   Unique Field Definition:  OMI-Specific
   Description: >

     The solar azimuth angle (in deg) at the center of the ground pixel.

 - Field Name:               ViewingZenithAngle
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -90.0 to 90.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    deg
   Data Source:              L1B
   Title:                    "Viewing zenith angle at WGS84 ellipsoid for center co-ordinate of the ground pixel "
   Unique Field Definition:  OMI-Specific
   Description: >

     The viewing zenith angle (in deg) at the center of the ground pixel.

 - Field Name:               ViewingAzimuthAngle
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -180.0 to 180.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    deg
   Data Source:              L1B
   Title: >
     " Viewing azimuth angle at WGS84 ellipsoid for 
       center co-ordinate of the ground pixel, defined East-of-North "
   Unique Field Definition:  OMI-Specific
   Description: >

     The viewing azimuth angle (in deg) at the center of the ground pixel.

 - Field Name:               GroundPixelQualityFlags
   Data Type:                HE5T_NATIVE_UINT16
   Dimensions:               nTimes,nXtrack
   Range or Valids:          Not meaningful.
   Missing Value:            65535
   Offset:                   0.0d0
   Scale Factor:             1.0d0
   Units:                    NoUnits
   Data Source:              L1B
   Title:                    "Ground Pixel Quality Flags"
   Unique Field Definition:  OMI-Specific
   Description: >

     Bits 0 to 3 together contain the land/water flags:
       0    - shallow ocean
       1    - land
       2    - shallow inland water
       3    - ocean coastline/lake shoreline
       4    - ephemeral (intermittent) water
       5    - deep inland water
       6    - continental shelf ocean
       7    - deep ocean
       8-14 - not used
       15   - error flag for land/water
     Bits 4 to 6 are flags that are set to 0 for FALSE, or 1 for TRUE:
     Bit 4 - sun glint possibility flag
     Bit 5 - solar eclipse possibility flag
     Bit 6 - geolocation error flag
     Bit 7 is reserved for future use (currently set to 0).
     Bits 8 to 14 together contain the snow/ice flags (based on NISE):
       0       - snow-free land
       1-100   - sea ice concentration (percent)
       101     - permanent ice (Greenland, Antarctica)
       102     - not used
       103     - dry snow
       104     - ocean (NISE-255)
       105-123 - reserved for future use
       124     - mixed pixels at coastline (NISE-252)
       125     - suspect ice value (NISE-253)
       126     - corners undefined (NISE-254)
       127     - error
     Bit 15 - NISE nearest neighbor filling flag.
     (See Section 6.2 of Reference 4 for more details.)

Data Fields:

 - Field Name:               ColumnAmountNO2
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "NO2 vertical column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     NO2 Vertical Column Density (Total Column) in molec/cm^2.

 - Field Name:               ColumnAmountNO2Std
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "Precision of the NO2 vertical column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the NO2 Vertical Column Density (Total Column) in molec/cm^2.

 - Field Name:               ColumnAmountNO2Initial
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A
   Title:                    "NO2 initial vertical column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     NO2 Initial Vertical Column Density (Total Column) in molec/cm^2.
     For these data a simple air mass factor assumption is used.

 - Field Name:               ColumnAmountNO2InitialStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A 
   Title:                    "Precision of the NO2 initial vertical column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the NO2 Initital Vertical Column Density 
     (Total Column) in molec/cm^2. 

 - Field Name:               ColumnAmountNO2Trop
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "NO2 tropospheric column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     NO2 Tropospheric Column Density in molec/cm^2.

 - Field Name:               ColumnAmountNO2TropStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "Precision of the NO2 tropospheric column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the NO2 Tropospheric Column Density in molec/cm^2. 

 - Field Name:               ColumnAmountNO2Unpolluted 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "NO2 unpolluted column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     NO2 unpolluted column density in molec/cm^2.

 - Field Name:               ColumnAmountNO2UnpollutedStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2C
   Title:                    "Precision of the NO2 unpolluted column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the NO2 unpolluted column density in molec/cm^2. 

 - Field Name:               TropFractionUnpolluted 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2C
   Title: >

     "Fraction of the NO2 unpolluted column below the tropopause."

   Unique Field Definition:  OMI-Specific
   Description: >

     The fraction of the NO2 unpolluted column density
     that is below the tropopause.

 - Field Name:               TropFractionUnpollutedStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2C
   Title: >

     "Precision of the fraction of the NO2 unpolluted column
      that is below the tropopause."

   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the fraction of the NO2 unpolluted column 
     density below the tropopause.

 - Field Name:               SlantColumnAmountNO2
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A 
   Title:                    "NO2 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     NO2 Slant Column Density in molec/cm^2.

 - Field Name:               SlantColumnAmountNO2Std
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A
   Title:                    "Precision of the NO2 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the NO2 Slant Column Density in molec/cm^2. 

 - Field Name:               RingCoefficient 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A 
   Title:                    "Fitted amount of Ring effect"
   Unique Field Definition:  OMI-Specific
   Description: >

     Amount of Ring effect determined by the DOAS fit.

 - Field Name:               RingCoefficientStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Precision of the fitted amount of Ring effect"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the amount of Ring effect determined by the DOAS fit. 

 - Field Name:               SlantColumnAmountO3
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A 
   Title:                    "O3 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     O3 Slant Column Density in molec/cm^2.

 - Field Name:               SlantColumnAmountO3Std
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A
   Title:                    "Precision of the O3 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the O3 Slant Column Density in molec/cm^2. 

 - Field Name:               SlantColumnAmountH2O
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A 
   Title:                    "H2O slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     H2O Slant Column Density in molec/cm^2.

 - Field Name:               SlantColumnAmountH2OStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    molec/cm^2
   Data Source:              OMNO2A
   Title:                    "Precision of the H2O slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the H2O Slant Column Density in molec/cm^2. 

 - Field Name:               SlantColumnAmountO2O2
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d-43
   Units:                    molec/cm^2
   Data Source:              OMNO2A 
   Title:                    "O2-O2 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     O2-O2 Slant Column Density in molec/cm^2.

 - Field Name:               SlantColumnAmountO2O2Std
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d-43
   Units:                    molec/cm^2
   Data Source:              OMNO2A
   Title:                    "Precision of the O2-O2 slant column density "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the O2-O2 Slant Column Density in molec/cm^2. 

 - Field Name:               PolynomialCoefficients 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nPolynomial,nXtrack,nTimes 
   Range or Valids:          Range is 0.0 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A 
   Title:                    "Polynomial Coefficients"
   Unique Field Definition:  OMI-Specific
   Description: >

     Polynomial coefficients determined by the DOAS fit.

 - Field Name:               PolynomialCoefficientsStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nPolynomial,nXtrack,nTimes
   Range or Valids:          Range is -1.0e30 to 1.0e30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Precision of the Polynomial Coefficients"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the polynomial coefficients determined by the DOAS fit. 

 - Field Name:               ChiSquaredOfFit
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Chi-squared diagnostics of DOAS fit."
   Unique Field Definition:  OMI-Specific
   Description: >

     Chi-squared diagnostics of DOAS fit.

 - Field Name:               RootMeanSquareErrorOfFit
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    sr^-1
   Data Source:              OMNO2A
   Title:                    "Root-mean-square error of DOAS fit."
   Unique Field Definition:  OMI-Specific
   Description: >

     Root-mean-square error of DOAS fit. 

 - Field Name:               AMFInitial 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Initial AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Initial Air Mass Factor. 

 - Field Name:               AMFInitialStd 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Precision of the Initial AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Initial Air Mass Factor. 

 - Field Name:               AMFInitialClear
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Initial AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Initial Air Mass Factor for the cloud-free part of the ground pixel.

 - Field Name:               AMFInitialClearStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Precision of the Initial AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Initial Air Mass Factor for the 
     cloud-free part of the ground pixel. 

 - Field Name:               AMFInitialCloudy
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Initial AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Initial Air Mass Factor for the cloudy part of the ground pixel.

 - Field Name:               AMFInitialCloudyStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Precision of the Initial AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Initial Air Mass Factor for the 
     cloudy part of the ground pixel.

 - Field Name:               AMFUnpolluted 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Unpolluted AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Unpolluted Air Mass Factor. 

 - Field Name:               AMFUnpollutedStd 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Unpolluted AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Unpolluted Air Mass Factor. 

 - Field Name:               AMFUnpollutedClear
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Unpolluted AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Unpolluted Air Mass Factor for the cloud-free part of the ground pixel.

 - Field Name:               AMFUnpollutedClearStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Unpolluted AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Unpolluted Air Mass Factor for the 
     cloud-free part of the ground pixel. 

 - Field Name:               AMFUnpollutedCloudy
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Unpolluted AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Unpolluted Air Mass Factor for the cloudy part of the ground pixel.

 - Field Name:               AMFUnpollutedCloudyStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Unpolluted AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Unpolluted Air Mass Factor for the 
     cloudy part of the ground pixel. 

 - Field Name:               AMFPolluted 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Polluted AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Polluted Air Mass Factor. 

 - Field Name:               AMFPollutedStd 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Polluted AMF"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Polluted Air Mass Factor. 

 - Field Name:               AMFPollutedClear
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Polluted AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Polluted Air Mass Factor for the cloud-free part of the ground pixel.

 - Field Name:               AMFPollutedClearStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Polluted AMF for Cloud-free Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Polluted Air Mass Factor for the 
     cloud-free part of the ground pixel. 

 - Field Name:               AMFPollutedCloudy
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Polluted AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Polluted Air Mass Factor for the cloudy part of the ground pixel.

 - Field Name:               AMFPollutedCloudyStd
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Precision of the Polluted AMF for cloudy Conditions"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Polluted Air Mass Factor for the 
     cloudy part of the ground pixel.

 - Field Name:               CloudFraction
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1000.0d+00
   Units:                    NoUnits
   Data Source:              L2 OMCLDO2
   Title:                    " Effective cloud fraction"
   Unique Field Definition:  OMI-Specific
   Description: >

     Effective cloud fraction, scaled by a factor 1000.

 - Field Name:               CloudFractionStd
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1000.0d+00
   Units:                    NoUnits
   Data Source:              L2 OMCLDO2
   Title:                    " Effective cloud fraction precision"
   Unique Field Definition:  OMI-Specific
   Description: >

     Effective cloud fraction precision, scaled by a factor 1000.

 - Field Name:               CloudRadianceFraction
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1000.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Fraction of the radiance from the cloudy part "
   Unique Field Definition:  OMI-Specific
   Description: >

     Fraction of the radiance that comes from the cloudy part
     of the ground pixel, scaled by a factor 1000.

 - Field Name:               CloudPressure
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1500
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    hPa
   Data Source:              L2 OMCLDO2
   Title:                    "Effective cloud pressure "
   Unique Field Definition:  OMI-Specific
   Description: >

     Effective cloud pressure in hPa.

 - Field Name:               CloudPressureStd
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1500
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    hPa
   Data Source:              L2 OMCLDO2
   Title:                    "Effective cloud pressure precision"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the effective cloud pressure in hPa. 

 - Field Name:               TerrainReflectivity
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             100.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Reflectivity of the ground pixel"
   Unique Field Definition:  OMI-Specific
   Description: >

     Reflectivity of the ground pixel, scaled by a factor 1000.

 - Field Name:               TerrainPressure
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is 0 to 1500
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    hPa
   Data Source:              OMNO2A
   Title:                    "Pressure of the center of the ground pixel "
   Unique Field Definition:  OMI-Specific
   Description: >

     Pressure of the center of the ground pixel in hPa.

 - Field Name:               TerrainHeight
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -100.0 to 10000.0.
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    m
   Data Source:              L1B
   Title:                    " Terrain height at for center co-ordinate of the ground pixel "
   Unique Field Definition:  OMI-Specific
   Description: >

     The terrain height (in m) at the center of the ground pixel (from
     OMI Level 1B file). 

 - Field Name:               SmallPixelRadiance
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimesSmallPixel
   Range or Valids:          0.0 to 1.0d+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    photons/(s.nm.cm^2.sr)
   Data Source:              L1B
   Title:                    "Radiance of small pixel data column "
   Unique Field Definition:  OMI-Specific
   Description: >

     Radiance of small pixel data column of VIS CCD. 

 - Field Name:               SmallPixelRadiancePointer
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nTimesSmallPixelPointer, nTimes
   Range or Valids:          Range is 0 to 30000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Offset and count of nTimesSmallPixel wrt nTimes "
   Unique Field Definition:  OMI-Specific
   Description: >

     SmallPixelRadiancePointer maps the SmallPixelRadiance to the
     groundpixels.
     Example: For OMI measurement iTimes the SmallPixelRadiancePointer
     has a value (i,j). The SmallPixelRadiance data for the OMI 
     measurement itime start at SmallPixelRadiance(i,0) and there are 
     j small pixels in the ground pixel available. So for the first
     ground pixel the small pixel data are given in
     SmallPixelRadiance(i:i+j,0).

 - Field Name:               InstrumentConfigurationId
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nTimes
   Range or Valids:          0 to 255
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              L1B
   Title:                    " Unique ID for instrument settings for current measurement."
   Unique Field Definition:  OMI-Specific
   Description: >

     Unique ID for instrument settings for current measurement.

 - Field Name:               MeasurementQualityFlags
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nTimes
   Range or Valids:          0 to 255
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Bit level quality flags at measurement level"
   Unique Field Definition:  OMI-Specific
   Description: >

     Bit    Description
     Bit 0  Measurement Missing Flag 
            Set if all Ground Pixels give Earth Radiance Missing Flag.
     Bit 1  Measurement Error Flag
            Set if any of the L1B MeasurementQualityFlags bit 0, 1 or 3 are set
              for the Radiance or for the used Solar product.
     Bit 2  Measurement Warning Flag
            Set if any of the L1B MeasurementQualityFlags bit 2, 4, 5, 8, 9 are
            set for the Radiance or for the used Solar product.
     Bit 3  Rebinned Measurement Flag 
            Set if L1B radiance MeasurmentQualityFlags bit 7 is set to 1.
     Bit 4  SAA Flag 
            Set if L1B MeasurmentQualityFlags bit 10 is set to 1,
            for the Radiance or for the used Solar product.
     Bit 5  Spacecraft Maneuver Flag 
            Set if L1B MeasurmentQualityFlags bit 11 is set to 1, 
            for the Radiance for the used Solar product.
     Bit 6  Instrument Settings Error Flag
            The Earth and Solar InstrumentConfigurationIDs are not compatible.
     Bit 7  Cloud Data Not Synchronized Flag 
            Set if radiance and cloud data are not time synchronized.

 - Field Name:               FitQualityFlags
   Data Type:                HE5T_NATIVE_UINT16
   Dimensions:               nXtrack, nTimes
   Range or Valids:          0 to 65535
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2A
   Title:                    "Bit level quality flags at ground pixel level"
   Unique Field Definition:  OMI-Specific
   Description: >

     Bit Description
     Bit 0  Solar Irradiance Warning Flag
            For any of the irradiance pixels contained in the fit window:
            L1B PixelQualityFlags bit 3-10 is set
            wavelenghtPrecision > maxWavelengthPrecision
            wavelengthPrecision <= 0
            wavelengthPrecision contains fill value
            irradiancePrecision > maxIrradiancePrecision
            irradiancePrecision <= 0
            irradiancePrecision contains fill value
     Bit 1  Earth Radiance Missing Flag
            For this ground pixel the number of spectral pixels flagged with the
            L1B PixelQualityFlags bit 0 is larger than threshold set in the OPF,
            or the number of spectral pixels is too small to perform the 
            fitting.
     Bit 2  Earth Radiance Error Flag
            For this ground pixel the number of spectral pixels flagged with the
            L1B PixelQualityFlags bit 0-2 is larger
            than a threshold set in the OPF.
     Bit 3  Earth Radiance Warning Flag 
            For any of the radiance pixels contained in the fit window:
            L1B PixelQualityFlags bit 3-10 is set
            wavelenghtPrecision > maxWavelengthPrecision
            wavelengthPrecision <= 0
            wavelengthPrecision contains fill value
            radiancePrecision > maxRadiancePrecision
            radiancePrecision <= 0
            radiancePrecision contains fill value
            Any of the radiance or geolocation fields used is out-of-bound
     Bit 4  Cloud Data Error Flag
            Cloud fraction set to zero flag, because the cloud data is missing
            or invalid. Note that if the cloud product is not synchronized
            the cloud data is invalid.
     Bit 5  Cloud Data Warning Flag 
            A warning flag is set for the cloud data
     Bit 6  Snow/Ice Data Error Flag 
            Set if Snow/Ice data from cloud product is missing or invalid.
     Bit 7  SCD Error Flag 
            Set if SCD fit returned error
     Bit 8  SCD Warning Flag
            Set if any of the following occurrences:
            SCD precision > maxSCDPrecision
            RMS Error > RMSErrorFlag
            SCD Covariance > maxSCDCovarianceSCD is less than minSCD or SCD is
            larger than maxSCD
     Bit 9  IAMF Error Flag 
            Set if computation of AMFInitialClear or AMFInitialCloudy failed
     Bit 10 IAMF Warning Flag
            Set if computation of AMFInitialClear or AMFInitialCloudy
            returned warning because:
            Extrapolation of the LUTs
     Bit 11 IVCD Missing Flag
            Set if Initial VCD could not be computed.
     Bit 12 IVCD Warning Flag
            Set if any of the following:
            Cloud Data Warning Flag set
            SCD Warning Flag set
            IAMF Warning Flag set
            IVCD computation returned warning
            IVCD is less than minIVCD or IVCD is larger than maxIVCD
            IVCD precision > maxIVCDprecision
     Bit 13 Wavelength Registration Warning Flag
            Set if for any of the ground pixels the WavelengthRegistrationCheck 
            parameter is larger than a threshold set in the OPF.
     Bit 14 Reserved
     Bit 15 Reserved

 - Field Name:               AMFQualityFlags 
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nXtrack, nTimes
   Range or Valids:          0 to 255
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              OMNO2B
   Title:                    "Bit level quality flags at ground pixel level"
   Unique Field Definition:  OMI-Specific
   Description: >

     Bit 0 Table Extrapolation Flag
           Indicates that extrapolations were done beyond the edges 
           of the dAMF lookup tables.
     Bit 1 dAMF Table Unexpected Contents Flag
           Flag set indicates suspect values were found in the dAMF 
           (altitude resolved air mass factor) lookup table.
     Bit 2 NO2 Profile Table Unexpected Contents Flag
           Flag set indicates suspect values were found in the NO2 
           Profile lookup tables.
     Bit 3 Polluted Profile over High Terrain Flag
           Flag set indicates that polluted profile was detected, 
           but over high terrain.
     Bit 4 Large AMF Calculated Flag
           Flag set indicates the calculated value of any of 
           the AMFs was larger than the maximum threshold specified in the OPF.
     Bit 5 Small AMF calculated Flag
           Flag set indicates the calculated value of any of 
           the AMFs was smaller than the minimum threshold specified in the OPF.
     Bit 6 Suspect Stratospheric AMF Flag
           Flag set indicates the calculated stratospheric component of 
           the AMF is out of the range specified in the OPF.
     Bit 7 Suspect Tropospheric AMF Flag
           Flag set indicates the calculated tropospheric component of 
           the AMF is out of the range specified in the OPF. 

 - Field Name:               WavelengthRegistrationCheck
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nWavelCheck, nTimes
   Range or Valids:          Range is -1e+30 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    nm 
   Data Source:              OMNO2A
   Title:                    "Result from wavelength check algorithm "
   Unique Field Definition:  OMI-Specific
   Description: >

     Spectral shift determined by the wavelength check algorithm.
     This algorithm performs a spectral calibration on a small window.

 - Field Name:               WavelengthRegistrationCheckPrecision
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nWavelCheck, nTimes
   Range or Valids:          Range is -1e+30 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    nm 
   Data Source:              OMNO2A
   Title:                    "Precision of the result from wavelength check algorithm "
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the spectral shift determined by the wavelength check 
     algorithm.

 - Field Name:               UnpolFldCoefficients 
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nUnpolFldCoefs, nLatitude 
   Range or Valids:          Range is -1e+30 to 1.0e+30
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits 
   Data Source:              OMNO2C
   Title:                    "Smoothing coefficients for the unpolluted field"
   Unique Field Definition:  OMI-Specific
   Description: >

     Smoothing coefficients for the unpolluted field.

 - Field Name:               UnpolFldLatBandQualityFlags 
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nLatitude 
   Range or Valids:          Range is 0 to 255
   Missing Value:            Not applicable 
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits 
   Data Source:              OMNO2C
   Title:                    " Bit level quality flags on latitude band level"
   Unique Field Definition:  OMI-Specific
   Description: >

     Bit 0 Too many gaps
           Flag set indicates the smoothed unpolluted field 
           could not be produced for this latitude because 
           of gaps in the coverage.
     Bit 1 Used meridional averaging to fill
           Flag set indicates that some or all of the smoothed 
           unpolluted field for this latitude band was produced 
           using meridional smoothing to fill in gaps in the zonal 
           coverage.
     Bit 2 High variance after filtering
           Flag set indicates that the variance of the Initial Vertical 
           Column Densities, that remain after filtering, about the 
           smoothed field is larger than the threshold value read from the OPF.
     Bit 3-7 Reserved

Core Metadata:

 - Metadata Name:     SizeMBECSDataGranule
   Mandatory:         F
   Data Type:         LF
   Number of Values:  1
   Range or Valids:   0.00d+00 to 1.00d+04
   Data Source:       DSS
   Description: >

 - Metadata Name:     ReprocessingPlanned
   Mandatory:         T
   Data Type:         VA45
   Number of Values:  1
   Range or Valids: >

     Valids are "no further update anticipated", "further update is anticipated"
     and "further update anticipated using enhanced PGE".

   Data Source:       DP
   Description:       Actual is "further update is anticipated".

 - Metadata Name:     ReprocessingActual
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids: >

     Valids are "processed 1 time", "processed 2 times", etc...

   Data Source:       PCF
   Description: >

     An indication of what reprocessing has been performed on the granule.


 - Metadata Name:     LocalVersionID
   Mandatory:         T
   Data Type:         VA
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       PCF
   Description: >
     
     Actual is "RFC1321 MD5 = not yet calculated"


 - Metadata Name:     LocalGranuleID
   Mandatory:         T
   Data Type:         VA80
   Number of Values:  1
   Range or Valids: >

     "OMI-Aura_L1-OMNO2_2003m0101t0000-o00000_v001-2003m0101t000000.he5" to
     "OMI-Aura_L1-OMNO2_2099m1231t2359-o99999_v999-2099m1231t235959.he5"

   Data Source:       OMNO2A
   Description: >

     Example is
     "OMI-Aura_L1-OMNO2_2002m0630t2354-o21434_v001-2003m0515t181917.he5"
     (see Appendix E of Reference 3).

 - Metadata Name:     ProductionDateTime
   Mandatory:         T
   Data Type:         DT
   Number of Values:  1
   Range or Valids: >

     "2003-01-01T00:00:00.000Z" to "2099-12-31T24:59:59.999Z"

   Data Source:       TK
   Description:       The date and time of the Level 2 processing.


 - Metadata Name:     DayNightFlag
   Mandatory:         T
   Data Type:         VA40
   Number of Values:  1
   Range or Valids:   Valids are "Day", "Night", "Both", "NA", "D", "N".
   Data Source:       MCF
   Description: >

     Actual is "Day".


 - Metadata Name:     ParameterName
   Mandatory:         T
   Data Type:         VA40
   Number of Values:  1
   Range or Valids:   Valid is "Nitrogen_Dioxide_Total_and_Tropospheric_Column".
   Data Source:       OMNO2A
   Description: >

     The measured science parameter expressed in the granule.

 - Metadata Name:     AutomaticQualityFlag
   Mandatory:         T
   Data Type:         VA64
   Number of Values:  1
   Range or Valids:   Valids are "Passed", "Suspect" and "Failed".
   Data Source:       OMNO2A
   Description: >

     A granule-level quality flag that applies generally to the granule
     and specifically to the parameters at the granule level.

 - Metadata Name:     AutomaticQualityFlagExplanation
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OMNO2A
   Description: >

     Example:
     The value is based on a combination of the RadianceScienceQualityFlag, 
     IrradianceScienceQualityFlag, , QAPctCloudDataError, QAPctSCDError and 
     QAPctIVCDError. Thresholds used: xx% for Failed and yy% for Suspect.

 - Metadata Name:     OperationalQualityFlag
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids: >

     Valids are "Passed", "Failed", "Being Investigated", "Not Investigated",
     "Inferred Passed", "Inferred Failed" and "Suspect".

   Data Source:       MCF
   Description: >

     Actual is "Passed".

 - Metadata Name:     OperationalQualityFlagExplanation
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       MCF
   Description: >

     This granule passed operational tests that were administered by the OMI SIPS. 
     QA metadata was extracted and the file was successfully read using standard HDF-EOS utilities.

 - Metadata Name:     ScienceQualityFlag
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids: >

     Valids are "Passed", "Failed", "Being Investigated", "Not Investigated",
     "Inferred Passed", "Inferred Failed" and "Suspect".

   Data Source:       DP
   Description:       Actual is "Not Investigated".

 - Metadata Name:     ScienceQualityFlagExplanation
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       DP
   Description: >

     An updated science quality flag and explanation is put in the product 
     .met file when a granule has been evaluated. The flag value in this file, 
     Not Investigated, is an automatic default that is put in every granule during production.

 - Metadata Name:     QAPercentMissingData
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     The percent of the data in the granule that are missing.

 - Metadata Name:     QAPercentOutofBoundsData
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       OMNO2A
   Description: >

     The percent of the data in the granule that are out of bounds data.

 - Metadata Name:     OrbitNumber
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   1 to 999999
   Data Source:       L1B
   Description:       The OMI orbit number.

 - Metadata Name:     EquatorCrossingDate
   Mandatory:         T
   Data Type:         D
   Number of Values:  1
   Range or Valids:   Range is "2003-01-01" to "2099-12-31".
   Data Source:       L1B
   Description: >

     The date of the ascending equator crossing in the granule.

 - Metadata Name:     EquatorCrossingLongitude
   Mandatory:         T
   Data Type:         LF
   Number of Values:  1
   Range or Valids:   Range is -1.80d-02 to 1.80d+02.
   Data Source:       L1B
   Description: >

     The terrestrial longitude of the ascending equator crossing in the
     granule.

 - Metadata Name:     EquatorCrossingTime
   Mandatory:         T
   Data Type:         T
   Number of Values:  1
   Range or Valids:   Range is "01:00:0.000000" to "01:59:59.999999".
   Data Source:       L1B
   Description: >

     The time of the ascending equator crossing in the granule.

 - Metadata Name:     ShortName
   Mandatory:         T
   Data Type:         VA8
   Number of Values:  1
   Range or Valids:   Valid is "OMNO2".
   Data Source:       MCF
   Description:       Actual is "OMNO2".

 - Metadata Name:     VersionID
   Mandatory:         T
   Data Type:         SI
   Number of Values:  1
   Range or Valids:   000 to 999
   Data Source:       MCF
   Description:       Actual is 1.

 - Metadata Name:     InputPointer
   Mandatory:         T
   Data Type:         VA255
   Number of Values:  0 to 20
   Range or Valids: >

     Valid file names, each in double quotes, separated by commas, all
     surrounded by curved brackets.

   Data Source:       OMNO2A, OMNO2B, OMNO2C
   Description: >

     Example is
     ("OMNO2A_OPF.txt", 
      "OMI-Aura_L1-SML1BRVG_2002d182t0629-o21438_v001-2002d354t1817.he4", 
      "OMI-Aura_L2-OMCLDO2_2002d182t0629-o21438_v001-2002d354t1817.he5", 
      "GOMEsfcrefl.he5", "ProfileLut.h5", "TemperatureLut.h5", "damf.h5", 
      "NO2RefSpec_VIS_SIPS.dat", "O3RefSpecOMI_vis.dat", "O4RefSpecOMI.dat")

 - Metadata Name:     RangeBeginningDate
   Mandatory:         T
   Data Type:         D
   Number of Values:  1
   Range or Valids:   Range is "2003-01-01" to "2099-12-31".
   Data Source:       L1B
   Description:       The year, month and day when the granule began.

 - Metadata Name:     RangeBeginningTime
   Mandatory:         T
   Data Type:         T
   Number of Values:  1
   Range or Valids:   Range is "00:00:00.000000" to "23:59:59.999999".
   Data Source:       L1B
   Description: >

     The hour, minute, second and fraction of a second when the granule
     began.

 - Metadata Name:     RangeEndingDate
   Mandatory:         T
   Data Type:         D
   Number of Values:  1
   Range or Valids:   2003-01-01" to "2099-12-31"
   Data Source:       L1B
   Description:       The year, month and day when the granule ended.

 - Metadata Name:     RangeEndingTime
   Mandatory:         T
   Data Type:         T
   Number of Values:  1
   Range or Valids:   Range is "00:00:00.000000" to "23:59:59.999999".
   Data Source:       L1B
   Description: >

     The hour, minute, second and fraction of a second when the granule
     ended.

 - Metadata Name:     PGEVersion
   Mandatory:         T
   Data Type:         VA10
   Number of Values:  1
   Range or Valids:   Range is "0.0.0" to "9.9.99".
   Data Source:       PCF
   Description:       Example is "0.9.20" (see Appendix K of Reference 3).

 - Metadata Name:     AssociatedInstrumentShortName
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids:   Valid is "OMI".
   Data Source:       MCF
   Description:       Actual is "OMI".

 - Metadata Name:     AssociatedPlatformShortName
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids:   Valid is "Aura".
   Data Source:       MCF
   Description:       Actual is "Aura".

 - Metadata Name:     AssociatedSensorShortName
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids:   Valids are "CCD Ultra Violet" and "CCD Visible".
   Data Source:       MCF
   Description:       Actual is "CCD Ultra Violet".

 - Metadata Name:     OperationMode
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids: >

     Valids are "Calibration", "Diagnostic", "Initialization", "Launch",
     "Normal", "Roll", "Routine", "Safe", "Solar Calibration", "Standby",
     "Survival" and "Test".

   Data Source:       PCF
   Description:       Actual is "Normal".

Product Specific Attributes:

 - Metadata Name:     NrMeasurements
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description: >

     The number of measurements in the granule (per output product).

 - Metadata Name:     NrZoom
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of measurements in zoom modes.

 - Metadata Name:     NrSpatialZoom
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of measurements in spatial zoom mode.

 - Metadata Name:     NrSpectralZoom
   Mandatory:         T
   Data Type:         I
   Number of Values:  1
   Range or Valids:   0 to 9999
   Data Source:       L1B
   Description:       The number of measurements in spectral zoom mode.

 - Metadata Name:     ExpeditedData
   Mandatory:         T
   Data Type:         VA10
   Number of Values:  1
   Range or Valids:   Valids are "TRUE" and "FALSE".
   Data Source:       L1B
   Description:       The indicator for expedited L0 data.

 - Metadata Name:     SouthAtlanticAnomalyCrossing
   Mandatory:         T
   Data Type:         VA10
   Number of Values:  1
   Range or Valids:   Valids are "TRUE" and "FALSE".
   Data Source:       L1B
   Description: >

     The indicator that during part of the measurements the spacecraft
     was in the SAA.

 - Metadata Name:     SpacecraftManeuverFlag
   Mandatory:         T
   Data Type:         VA10
   Number of Values:  1
   Range or Valids:   Valids are "TRUE", "FALSE" and "UNKNOWN".
   Data Source:       L1B
   Description: >

     The indicator that during part of the measurements the spacecraft
     was performing a maneuver.

 - Metadata Name:     SolarEclipse
   Mandatory:         T
   Data Type:         VA10
   Number of Values:  1
   Range or Valids:   Valids are "TRUE" and "FALSE".
   Data Source:       L1B
   Description: >

     The indicator that during part of the measurements a solar eclipse
     occurred.

 - Metadata Name:     InstrumentConfigurationIDs
   Mandatory:         T
   Data Type:         SI
   Number of Values:  1 to 256
   Range or Valids:   0 to 255
   Data Source:       L1B
   Description: >

     An array containing the instrument configuration identifiers used
     for the measurements.

 - Metadata Name:     MasterClockPeriods
   Mandatory:         T
   Data Type:         F
   Number of Values:  1 to 128
   Range or Valids:   0.0 to 10.0
   Data Source:       L1B
   Description: >

     An array containing the master clock periods in seconds used for
     the measurements.

 - Metadata Name:     ExposureTimes
   Mandatory:         T
   Data Type:         F
   Number of Values:  1 to 256
   Range or Valids:   0.0 to 2000.0
   Data Source:       L1B
   Description: >

     An array containing the exposure times in seconds used for the
     measurements.

 - Metadata Name:     PathNr
   Mandatory:         T
   Data Type:         I
   Number of Values:  1 to 500
   Range or Valids:   1 to 466
   Data Source:       L1B
   Description:       Number of the NOSE path within the repeat cycle.

 - Metadata Name:     StartBlockNr
   Mandatory:         T
   Data Type:         SI
   Number of Values:  1 to 500
   Range or Valids:   1 to 50
   Data Source:       L1B
   Description:       Number of the NOSE start block along the track.

 - Metadata Name:     EndBlockNr
   Mandatory:         T
   Data Type:         SI
   Number of Values:  1 to 500
   Range or Valids:   1 to 50
   Data Source:       L1B
   Description:       The number of the NOSE end block along the track.

Archived Metadata:

 - Metadata Name:     LongName
   Mandatory:         T
   Data Type:         VA80
   Number of Values:  1
   Range or Valids: >

     Valid is
     "OMI/Aura Nitrogen Dioxide (NO2) Total & Troposph.Column 1-Orbit L2 Swath 13x24km".

   Data Source:       MCF
   Description: >

     Actual is
     "OMI/Aura Total Column and Tropospheric Column Nitrogen Dioxide 
      1-Orbit L2 Swath 13x24km".
     (see Section 7.0 of Reference 2).

 - Metadata Name:     ESDTDescriptorRevision
   Mandatory:         T
   Data Type:         VA20
   Number of Values:  1
   Range or Valids:   Range is "0.0.0" to "9.9.99".
   Data Source:       MCF
   Description: >

     The version of the ESDT descriptor file as determined by ECS.
     Actual is "0.9.30"


References: >

  1. "OMI Algorithm Theoretical Basis Document, Volume IV, OMI Trace Gas 
     Algorithms "
     (OMI-ATBD-VOL4, ATBD-OMI-02, Version 2.0, August 2002)

  2. "HDF-EOS Aura File Format Guidelines"
     (OMI-AURA-DATA-GUIDE, Version 1.3, 5 August 2003)

  3. "OMI Science Software Delivery Guide for Version 0.9"
     (OMI-SSDG-0.9.8, Version 0.9.8, 14 August 2003)

  4. "OMI GDPS Input/Output Data Specification (IODS) Volume 2"
     (OMI-GDPS-IODS-2, SD-OMIE-7200-DS-467, 9 April 2003)

  5. "Release 6A Implementation Earth Science Data Model for the ECS Project"
     (420-TP-022-002, June 2001)
     (http://edhs1.gsfc.nasa.gov/waisdata/rel6/html/tp4202202.html and
      http://edhs1.gsfc.nasa.gov/waisdata/rel6/html/tp42022_adds.html)

  6. "OMI L2 - L4 Metadata Reference Guide"
     (3 July 2002)
     (https://omiwww.gsfc.nasa.gov/mlinda/OMImetadataRefGuide.html)

  7. " OMI Level 2 NO2 Data Product Specification "
     (SD-OMIE-KNMI-352, Issue 1.1, Draft)
     (January 2004)

  8. "Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent"
    (March 2002)
    (http://nsidc.org/data/docs/daac/nise1_nise.gd.html)