Shortname:    OMDOAO3
Longname:     OMI/Aura Ozone (O3) DOAS Total Column 1-Orbit L2 Swath 13x24km
PSF Version:  0.9.40
Date:         28 April 2005
Author(s):    Pepijn Veefkind (KNMI)

PGE Version:               0.9.40
Lead Algorithm Scientist:  Pepijn Veefkind (KNMI)
Lead Algorithm Developer:  Pepijn Veefkind (KNMI)
Lead PGE Developer:        Jussi Johansson (SSF)
PGE Developer(s):          

Description: >

  This document specifies the product format for the OMDOAO3 Level 2 PGE,
  which uses the DOAS method to determine total column ozone from OMI
  UV-2 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 20 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:       PCF
   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:       PGE
   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:       PGE
   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:       PGE
   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:       PGE
   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:       PGE
   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:       PCF
   Description:       Actual is  "OFFLINE" for OSIPS processing.

 - Metadata Name:     OzoneColumnAmountHistogram
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT32
   Number of Values:  20
   Range or Valids:   0 to 1000000
   Data Source:       PGE
   Description:       Histogram of ozone vertical column density in the granule.

 - Metadata Name:     SolarProductMissing
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   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:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   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:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

     Set if QAPctIrradianceWarning is larger than 0.

 - Metadata Name:     BackupSolarProductUsed
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     ParametersInconsistent
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     RadianceParametersMissing
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     RadianceScienceQualityFlag
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     IrradianceScienceQualityFlag
   Mandatory:         T
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     CloudProductMissing
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 1
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctSunGlint
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctEclipse
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctIrradianceWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctRadianceMissing
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctRadianceError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctRadianceWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctCloudDataError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctCloudDataWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctSnowIceDataError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctSCDError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctSCDWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctAMFError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctAMFWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctGhostColumnWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctGhostColumnError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctVCDError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPctVCDWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of ground pixels for which L2 ProcessingQualityFlags bit 14 is set

 - Metadata Name:     QAPctMeasMissing
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 0 is set

 - Metadata Name:     QAPctMeasError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 1 is set

 - Metadata Name:     QAPctMeasWarning
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 2 is set

 - Metadata Name:     QAPctRebinned
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 3 is set

 - Metadata Name:     QAPctSAA
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 4 is set

 - Metadata Name:     QAPctSpacecraftManeuver
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 5 is set

 - Metadata Name:     QAPctInstrumentSettingsError
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 6 is set

 - Metadata Name:     QAPctCloudDataNotSynchronized
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

     Percent of measurements for which L2 MeasurementQualityFlags bit 7 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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       OPF parameter.

# Cutwindow is commented out because presently it is not used
# - Metadata Name:     OPF_cutWindow
#   Mandatory:         F
#   Data Type:         HE5T_NATIVE_CHAR
#   Number of Values:  1
#   Range or Valids:   Not applicable (free format).
#   Data Source:       OPF
#   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       OPF parameter.

 - Metadata Name:     OPF_maxGcd
   Mandatory:         F
   Data Type:         HE5T_NATIVE_CHAR
   Number of Values:  1
   Range or Valids:   Not applicable (free format).
   Data Source:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:       OPF
   Description:       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:     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:       PGE
   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:    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:                    deg
   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:                    deg
   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:                    deg
   Data Source:              L1B
   Title:                    "Geodetic Latitude above WGS84 ellipsoid"
   Unique Field Definition:  HIRDLS-OMI-TES-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:             1.0d+00
   Units:                    deg
   Data Source:              L1B
   Title:                    "Geodetic Longitude above WGS84 ellipsoid"
   Unique Field Definition:  HIRDLS-OMI-TES-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:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    m
   Data Source:              L1B
   Title:                    "Altitude above WGS84 ellipsoid"
   Unique Field Definition:  HIRDLS-OMI-TES-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:  Aura-Shared
   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-TES-Shared
   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:               TerrainHeight
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -100 to 10000
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    m
   Data Source:              L1B
   Title:                    "Terrain height at 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:               GroundPixelQualityFlags
   Data Type:                HE5T_NATIVE_UINT16
   Dimensions:               nTimes,nXtrack
   Range or Valids:          Not meaningful
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   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:               ColumnAmountO3
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    DU
   Data Source:              PGE
   Title:                    "Ozone vertical column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Ozone Vertical Column Density (Total Column Ozone) in DU.

 - Field Name:               ColumnAmountO3Precision
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    DU
   Data Source:              PGE
   Title:                    "Precision of the ozone vertical column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Ozone Vertical Column Density in DU.

 - Field Name:               SlantColumnAmountO3
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 10000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    DU
   Data Source:              PGE
   Title:                    "Ozone slant column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Ozone Slant Column Density (in DU).

 - Field Name:               SlantColumnAmountO3Precision
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 10000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    DU
   Data Source:              PGE
   Title:                    "Precision of the ozone slant column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the Ozone Slant Column Density (in DU).

 - Field Name:               GhostColumnAmountO3
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 1000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    DU
   Data Source:              PGE
   Title:                    "Ozone ghost column density"
   Unique Field Definition:  OMI-Specific
   Description: >

     Amount of ozone used to correct for cloudy part of the ground pixel (in DU).

 - Field Name:               AirMassFactor
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 100.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Air Mass Factor"
   Unique Field Definition:  OMI-Specific
   Description: >

     Air Mass Factor to compute the vertical column density from the slant column density.

 - Field Name:               ClearAirMassFactor
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 100.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Air Mass Factor for cloud-free pixel"
   Unique Field Definition:  OMI-Specific
   Description: >

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

 - Field Name:               CloudyAirMassFactor
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 100.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Air Mass Factor for cloud covered pixel"
   Unique Field Definition:  OMI-Specific
   Description: >

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

 - Field Name:               CloudFraction
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d-02
   Units:                    NoUnits
   Data Source:              L2 OMCLDO2
   Title:                    "Effective cloud fraction"
   Unique Field Definition:  OMI-Specific
   Description: >

     Effective cloud fraction, scaled by a factor 100

 - Field Name:               CloudFractionPrecision
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d-02
   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 100

 - Field Name:               CloudRadianceFraction
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d-02
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Fraction of the radiance that comes from the cloudy part"
   Unique Field Definition:  OMI-Specific
   Description: >

     Fraction of the radiance that comes from the cloudy part, scaled by a factor 100

 - Field Name:               CloudPressure
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          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:               CloudPressurePrecision
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          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:               TerrainPressure
   Data Type:                HE5T_NATIVE_INT16
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 1500
   Missing Value:            -32767
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    hPa
   Data Source:              PGE
   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:               TerrainReflectivity
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d-02
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Reflectivity of the ground pixel"
   Unique Field Definition:  OMI-Specific
   Description: >

     Reflectivity of the ground pixel, scaled by a factor 100.

 - Field Name:               SnowIceExtent
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0 to 255
   Missing Value:            255
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              L2 OMCLDO2
   Title:                    "Snow Ice extent information. Uses the NISE convention."
   Unique Field Definition:  OMI-Specific
   Description: >

     Snow Ice extent information. Uses the NISE convention (see Reference 8).

 - Field Name:               RingCoefficient
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,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:                    molecule cm^-2
   Data Source:              PGE
   Title:                    "Fitted ring coefficient"
   Unique Field Definition:  OMI-Specific
   Description: >

     Fitted amount of Ring effect.

 - Field Name:               RingCoefficientPrecision
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,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:                    molecule cm^-2
   Data Source:              PGE
   Title:                    "Precision of the fitted ring coefficient"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the fitted amount of Ring effect.

 - Field Name:               EffectiveTemperature
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -100 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    degree Celsius
   Data Source:              PGE
   Title:                    "Fitted Effective temperature of the ozone"
   Unique Field Definition:  OMI-Specific
   Description: >

     Fitted Effective temperature of the ozone along the average path of the photons.

 - Field Name:               EffectiveTemperaturePrecision
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nXtrack,nTimes
   Range or Valids:          Range is -100 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    degree Celsius
   Data Source:              PGE
   Title:                    "Precision of the Fitted Effective temperature of the ozone"
   Unique Field Definition:  OMI-Specific
   Description: >

     Precision of the fitted Effective temperature of the ozone along the average path of the photons.

 - 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:              PGE
   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:                    NoUnits
   Data Source:              PGE
   Title:                    "Root-Mean-Square error of DOAS fit"
   Unique Field Definition:  OMI-Specific
   Description: >

     Root-mean-square error of DOAS fit.

 - Field Name:               MeasurementQualityFlags
   Data Type:                HE5T_NATIVE_UINT8
   Dimensions:               nTimes
   Range or Valids:          Not meaningful
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   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  Set if radiance and cloud data are not synchronized.

 - Field Name:               ProcessingQualityFlags
   Data Type:                HE5T_NATIVE_UINT16
   Dimensions:               nXtrack, nTimes
   Range or Valids:          Not meaningful
   Missing Value:            Not applicable
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   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  AMF Error Flag 
            Set if computation of AMFClear or AMFCloudy failed
     Bit 10 AMF Warning Flag
            Set if computation of AMFs returned warning because:
            Extrapolation of the LUTs
     Bit 11 Ghost Column Error Flag 
            Set if Ghost Column could not be computed.
     Bit 12 Ghost Column Warning Flag
            Set if the cloud pressure > surface pressure.
            The ghost column will be set to zero in this case.
     Bit 13 VCD Error Flag
            Set if VCD could not be computed.
     Bit 14 VCD Warning Flag
            Set if any of the following:
            Cloud Data Warning Flag set
            SCD Warning Flag set
            AMF Warning Flag set
            VCD computation returned warning
            VCD is less than minVCD or VCD is larger than maxVCD
            VCD precision > maxVCDprecision
     Bit 15 Reserved

 - Field Name:               MeanSunNormalizedRadiance
   Data Type:                HE5T_NATIVE_FLOAT
   Dimensions:               nXtrack,nTimes
   Range or Valids:          0.0 to 10000.0
   Missing Value:            -1.2676506e+30
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              PGE
   Title:                    "Mean Sun Normalized Radiance over the DOAS Fit Window"
   Unique Field Definition:  OMI-Specific
   Description: >

     Mean Sun Normalized Radiance over the DOAS Fit Window.

 - 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 UV CCD.

 - Field Name:               NumberOfSmallPixelColumns
   Data Type:                HE5T_NATIVE_INT8
   Dimensions:               nTimes
   Range or Valids:          0 to 100
   Missing Value:            -127
   Offset:                   0.0d+00
   Scale Factor:             1.0d+00
   Units:                    NoUnits
   Data Source:              L1B
   Title:                    "Number of small pixels for current measurement"
   Unique Field Definition:  OMI-Specific
   Description: >

     Number of small pixels for current measurement.

 - 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.


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-OMDOAO3_2003m0101t0000-o00000_v001-2003m0101t000000.he5" to
     "OMI-Aura_L1-OMDOAO3_2099m1231t2359-o99999_v999-2099m1231t235959.he5"

   Data Source:       PGE
   Description: >

     Example is
     "OMI-Aura_L1-OMDOAO3_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 "Ozone".
   Data Source:       PGE
   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:       PGE
   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:       PGE
   Description: >

     Example:
     The value is based on a combination of the RadianceScienceQualityFlag, IrradianceScienceQualityFlag, 
     QAPctRadianceError, QAPctCloudDataError, QAPctSCDError, QAPctGhostColumnError, QAPctVCDError. 
     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:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     QAPercentOutofBoundsData
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   Number of Values:  1
   Range or Valids:   0 to 100
   Data Source:       PGE
   Description: >

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

 - Metadata Name:     OrbitNumber
   Mandatory:         T
   Data Type:         HE5T_NATIVE_INT
   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 "OMDOAO3".
   Data Source:       MCF
   Description:       Actual is " OMDOAO3".

 - 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:       PGE
   Description: >

     Example is
     ("O3TDS3.opf", "OMI-Aura_L1-OML1BRUG_2000d275t1854-o12151_v001-2002d332t1500.he4", 
     "OMI-Aura_L2-OMCLDO2_2000d275t1854-o12151_v001-2002d332t1500.he5", 
     "OMI-Aura_L1-OML1BIRR_2000d275t1854-o12151_v001-2002d332t1500.he4", "rsclim.he5", "ozoneClim.h5",
     "cloudyAMFLut.h5", "clearAMFLut.h5", "ozoneRefSpec.dat", "ringRefSpecNorm.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 "0.9.30" (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:         HE5T_NATIVE_INT
   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:         HE5T_NATIVE_INT
   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:         HE5T_NATIVE_INT
   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:         HE5T_NATIVE_INT
   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:         HE5T_NATIVE_INT
   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 Ozone (O3) DOAS Total Column 1-Orbit L2 Swath 13x24km".

   Data Source:       MCF
   Description: >

     Actual is
     "OMI/Aura DOAS Total Column Ozone 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 II, OMI Ozone Products"
     (OMI-ATBD-VOL2, 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 Ozone DOAS Data Product Specification"
     (SD-OMIE-KNMI-298, 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)