Shortname: OMTO3

Longname: OMI/Aura Ozone (O3) Total Column 1-Orbit L2 Swath 13x24km

PFS Version: 1.1.0

Date: 3 Nov 2007

Author(s): Kai Yang (UMBC), Charles Wellemeyer (SSAI), David Haffner
(SSAI), Peter Leonard (SSAI)

PGE Version: 1.1.0 and newer

Lead Algorithm Scientist: Pawan K. Bhartia (NASA/GSFC)

Lead Algorithm Developer: Kai Yang (UMBC)

Lead PGE Developer: Kai Yang (UMBC)

PGE Developer(s): David Haffner (SSAI), Shifang Luo (SSAI)

Description: \>

This document specifies the product format for the OMTO3 Level 2 PGE,

which uses the V8 TOMS algorithm to estimate 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 5 to 500 Mb.

Global Metadata:

\- Metadata Name: AuthorAffiliation

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: NASA/GSFC

Data Source: PCF

Description: Example is \"NASA/GSFC\".

\- Metadata Name: AuthorName

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: U.S. OMI Science Team

Data Source: PCF

Description: Example is \"U.S. OMI Science Team\".

\- Metadata Name: GranuleDay

Mandatory: T

Data Type: HE5T_NATIVE_INT

Number of Values: 1

Minimum Value: 1

Maximum Value: 31

Data Source: PGE

Description: The day of the month at the start of the granule.

\- Metadata Name: GranuleMonth

Mandatory: T

Data Type: HE5T_NATIVE_INT

Number of Values: 1

Minimum Value: 1

Maximum Value: 12

Data Source: PGE

Description: The month at the start of the granule.

\- Metadata Name: GranuleYear

Mandatory: T

Data Type: HE5T_NATIVE_INT

Number of Values: 1

Minimum Value: 2000

Maximum Value: 2099

Data Source: PGE

Description: The (four-digit) year at the start of the granule.

\- Metadata Name: HDFEOSVersion

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Data Source: HE

Description: Example is \"HDFEOS_5.1.5\".

\- Metadata Name: InputVersions

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Data Source: PGE

Description: \>

A list of every ESDT (including version) whose product was used as input

for the processing.

\- Metadata Name: InstrumentName

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: OMI

Data Source: PCF

Description: Actual is \"OMI\" (see Section 6.1 of Reference 2).

\- Metadata Name: OrbitData

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: DEFINITIVE,PREDICTED

Data Source: L1B

Description: \>

Indicates whether orbit data used by the Level 1B processor is
definitive

or predicted.

\- Metadata Name: PGEVERSION

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Data Source: PCF

Description: Example is \"1.1.0\" (see Appendix K of Reference 3).

\- Metadata Name: ProcessingCenter

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: OMIDAPS,TLCF

Data Source: PCF

Description: Example is \"OMIDAPS\".

\- Metadata Name: ProcessingHost

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Data Source: PCF

Description: \>

The output from executing the Unix \"uname -a\" command on the
processing

machine.

\- Metadata Name: ProcessLevel

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: 2

Data Source: PCF

Description: Actual is \"2\".

\- Metadata Name: TAI93At0zOfGranule

Mandatory: T

Data Type: HE5T_NATIVE_DOUBLE

Number of Values: 1

Minimum Value: 0.0

Maximum Value: 1.0e+30

Data Source: PGE

Description: \>

The TAI93 time at 0z of the granule (see Section 6.1 of Reference 2).

\- Metadata Name: WavelengthOfAdjustment

Mandatory: T

Data Type: HE5T_NATIVE_FLOAT

Number of Values: 6

Minimum Value: 300.0

Maximum Value: 400.0

Data Source: PGE

Description: \>

The wavelengths at which the N-Value adjustments occur.

\- Metadata Name: NVXAdjustment

Mandatory: T

Data Type: HE5T_NATIVE_FLOAT

Number of Values: 360

Minimum Value: -5.0

Maximum Value: 5.0

Data Source: PGE

Description: \>

The N-Value adjustments for the 6 wavelengths and 60 cross-track scan

positions.

Swath Metadata:

\- Metadata Name: EarthSunDistance

Mandatory: T

Data Type: HE5T_NATIVE_FLOAT

Number of Values: 1

Minimum Value: 1.47e+11

Maximum Value: 1.53e+11

Data Source: L1B

Description: \>

The Earth-sun distance (in m) at the time of the irradiance measurement.

\- Metadata Name: NumTimes

Mandatory: T

Data Type: HE5T_NATIVE_INT

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of \"scan\" lines in the swath.

\- Metadata Name: NumTimesSmallPixel

Mandatory: T

Data Type: HE5T_NATIVE_INT

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of small pixel \"scan\" lines in the swath.

\- Metadata Name: SwathName

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: OMI Column Amount O3

Data Source: PGE

Description: Actual is \"OMI Column Amount O3\".

\- Metadata Name: VerticalCoordinate

Mandatory: T

Data Type: HE5T_NATIVE_CHAR

Number of Values: 1

Valids: Total Column

Data Source: PGE

Description: Actual is \"Total Column\" (see Section 6.2 of Reference
2).

Swath Dimensions:

\- Dimension Name: nLayers

Data Type: HE5T_NATIVE_INT

Dimension Type: FIXED

Number of Values: 1

Minimum Value: 1

Maximum Value: 11

Data Source: PGE

Description: The number of layers in the ozone profile per ground pixel.

\- Dimension Name: nTimes

Data Type: HE5T_NATIVE_INT

Dimension Type: FIXED

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of \"scan\" lines in the swath.

\- Dimension Name: nTimesSmallPixel

Data Type: HE5T_NATIVE_INT

Dimension Type: FIXED

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of small pixel \"scan\" lines in the swath.

\- Dimension Name: nWavel

Data Type: HE5T_NATIVE_INT

Dimension Type: FIXED

Number of Values: 1

Minimum Value: 1

Maximum Value: 500

Data Source: PGE

Description: The number of wavelengths per ground pixel.

\- Dimension Name: nXtrack

Data Type: HE5T_NATIVE_INT

Dimension Type: FIXED

Number of Values: 1

Minimum Value: 1

Maximum Value: 60

Data Source: L1B

Description: The number of ground pixels per \"scan\" line.

Geolocation Fields:

\- Field Name: GroundPixelQualityFlags

Data Type: HE5T_NATIVE_UINT16

Dimensions: nXtrack,nTimes

Minimum Value: 0

Maximum Value: 65534

Missing Value: 65535

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: L1B

Title: Ground Pixel Quality Flags

Unique Field Definition: TOMS-OMI-Shared

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.)

\- Field Name: Latitude

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -90.0

Maximum Value: 90.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Geodetic Latitude

Unique Field Definition: TOMS-Aura-Shared

Description: \>

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

\- Field Name: Longitude

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -180.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Geodetic Longitude

Unique Field Definition: TOMS-Aura-Shared

Description: \>

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

\- Field Name: RelativeAzimuthAngle

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -180.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg(EastofNorth)

Data Source: L1B

Title: Relative Azimuth Angle (sun + 180 - view)

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The relative (sun + 180 - view) azimuth angle (in deg) at the center of

the ground pixel.

\- Field Name: SecondsInDay

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nTimes

Minimum Value: 0.0

Maximum Value: 86401.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: s

Data Source: L1B

Title: Seconds after UTC midnight

Unique Field Definition: TOMS-Aura-Shared

Description: \>

The time (in s) after UTC midnight at the start of the \"scan\".

\- Field Name: SolarAzimuthAngle

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -180.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg(EastofNorth)

Data Source: L1B

Title: Solar Azimuth Angle

Unique Field Definition: TOMS-Aura-Shared

Description: \>

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

\- Field Name: SolarZenithAngle

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Solar Zenith Angle

Unique Field Definition: TOMS-Aura-Shared

Description: \>

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

\- Field Name: SpacecraftAltitude

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nTimes

Minimum Value: 4.0e+05

Maximum Value: 9.0e+05

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: m

Data Source: L1B

Title: Spacecraft Altitude

Unique Field Definition: TOMS-Aura-Shared

Description: Height above WGS84 ellipsoid.

\- Field Name: SpacecraftLatitude

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nTimes

Minimum Value: -90.0

Maximum Value: 90.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Spacecraft Latitude

Unique Field Definition: TOMS-Aura-Shared

Description: Geodetic latitude above WGS84 ellipsoid.

\- Field Name: SpacecraftLongitude

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nTimes

Minimum Value: -180.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Spacecraft Longitude

Unique Field Definition: TOMS-Aura-Shared

Description: Geodetic longitude above WGS84 ellipsoid.

\- Field Name: TerrainHeight

Data Type: HE5T_NATIVE_INT16

Dimensions: nXtrack,nTimes

Minimum Value: -200

Maximum Value: 10000

Missing Value: -32767

Offset: 0.0

Scale Factor: 1.0

Units: m

Data Source: L1B

Title: Terrain Height

Unique Field Definition: TOMS-Aura-Shared

Description: \>

The terrain height (in m) at the center of the ground pixel (from the

OMI Level 1B file).

\- Field Name: Time

Data Type: HE5T_NATIVE_DOUBLE

Dimensions: nTimes

Minimum Value: -5.0e+09

Maximum Value: 1.0e+10

Missing Value: -1.2676506002282294e+30

Offset: 0.0

Scale Factor: 1.0

Units: s

Data Source: L1B

Title: Time at Start of Scan (TAI93)

Unique Field Definition: TOMS-Aura-Shared

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

\- Field Name: ViewingAzimuthAngle

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -180.0

Maximum Value: 180.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg(EastofNorth)

Data Source: L1B

Title: Viewing Azimuth Angle

Unique Field Definition: TOMS-OMI-Shared

Description: \>

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

\- Field Name: ViewingZenithAngle

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 70.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: deg

Data Source: L1B

Title: Viewing Zenith Angle

Unique Field Definition: TOMS-OMI-Shared

Description: \>

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

Data Fields:

\- Field Name: AlgorithmFlags

Data Type: HE5T_NATIVE_UINT8

Dimensions: nXtrack,nTimes

Minimum Value: 0

Maximum Value: 13

Missing Value: 255

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Algorithm Flags

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The algorithm flag associated with the ground pixel:

0 - skipped

1 - standard

2 - adjusted for profile shape

3 - based on C-pair (331 and 360 nm)

Add 10 for snow/ice.

\- Field Name: APrioriLayerO3

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nLayers,nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 125.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: DU

Data Source: PGE

Title: A Priori Ozone Profile

Unique Field Definition: TOMS-OMI-Shared

Description: The apriori layer ozone values.

\- Field Name: RadiativeCloudFraction

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Radiative Cloud Fraction

Unique Field Definition: TOMS-OMI-Shared

Description: The radiative cloud fraction.

\- Field Name: fc

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: MLER Cloud Fraction

Unique Field Definition: TOMS-OMI-Shared

Description: The MLER model parameter: effective cloud fraction.

\- Field Name: CloudPressure

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1013.25

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: hPa

Data Source: PGE

Title: Effective Cloud Pressure

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The cloud top pressure (in hPa) associated with the ground pixel.

\- Field Name: ColumnAmountO3

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 50.0

Maximum Value: 700.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: DU

Data Source: PGE

Title: Best Total Ozone Solution

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The best total ozone solution (in DU) associated with the ground pixel.

\- Field Name: dN_dR

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: -200.0

Maximum Value: 0.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Reflectivity Sensitivity Ratio, dN/dR

Unique Field Definition: TOMS-OMI-Shared

Description: The reflectivity sensitivity ratio, dN/dR.

\- Field Name: dN_dT

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Ozone Weighted Temperature Sensitivity Ratio, dN/dT

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The ozone weighted temperature sensitivity ratio, dN/dT.

\- Field Name: InstrumentConfigurationId

Data Type: HE5T_NATIVE_UINT8

Dimensions: nTimes

Minimum Value: 0

Maximum Value: 200

Missing Value: 255

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: L1B

Unique Field Definition: OMI-Specific

Title: Instrument Configuration ID

Description: \>

Instrument Configuration ID as defined by OMIS operations.

\- Field Name: LayerEfficiency

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nLayers,nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 10.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Algorithmic Layer Efficiency

Unique Field Definition: TOMS-OMI-Shared

Description: The algorithmic layer efficiency.

\- Field Name: MeasurementQualityFlags

Data Type: HE5T_NATIVE_UINT8

Dimensions: nTimes

Minimum Value: 0

Maximum Value: 254

Missing Value: 255

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Measurement Quality Flags

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The measurement quality flag associated with each \"scan\" line (Bit
value

is 0 for not set and 1 for set):

Bit 0 - Measurement Missing Flag: All ground pixels have L1B

PixelQualityFlags bit 0 set.

Bit 1 - Measurement Error Flag: Any of L1B MeasurementQualityFlags bit
0,

1 or 3 are set for radiance or solar product used.

Bit 2 - Measurement Warning Flag: Any of L1B MeasurementQualityFlags

bit 2, 4, 5, 8, 9 are set for radiance or solar product used.

Bit 3 - Rebinned Measurement Flag: L1B radiance MeasurementQualityFlags

bit 7 is set.

Bit 4 - SAA Flag: L1B MeasurementQualityFlags bit 10 is set for radiance

or solar product used.

Bit 5 - Spacecraft Maneuver Flag: L1B MeasurementQualityFlags bit 11 is

set for radiance or solar product used.

Bit 6 - Instrument Setting Error Flag: Values for Earth and solar

InstrumentConfigurationId are not compatible.

Bit 7 - To be defined (currently set to 0).

\- Field Name: NumberSmallPixelColumns

Data Type: HE5T_NATIVE_UINT8

Dimensions: nTimes

Minimum Value: 0

Maximum Value: 5

Missing Value: 255

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: L1B

Title: Number of Small Pixel Columns

Unique Field Definition: OMI-Specific

Description: \>

NumberSmallPixelColumns is either 0 (for no or invalid small pixel
column

selected) or equal to the number of co-additions.

\- Field Name: NValue

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 600.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Measured N-Value

Unique Field Definition: TOMS-OMI-Shared

Description: The measured N-value.

\- Field Name: O3BelowCloud

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 100.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: DU

Data Source: PGE

Title: Ozone Below Fractional Cloud

Unique Field Definition: TOMS-OMI-Shared

Description: The ozone below fractional cloud (DU).

\- Field Name: QualityFlags

Data Type: HE5T_NATIVE_UINT16

Dimensions: nXtrack,nTimes

Minimum Value: 0

Maximum Value: 65534

Missing Value: 65535

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Quality Flags

Unique Field Definition: TOMS-OMI-Shared

Description: \>

Bits 0 to 3 together contain several output error flags:

0 - good sample

1 - glint contamination (corrected)

2 - sza \> 84 (degree)

3 - 360 residual \> threshold

4 - residual at unused ozone wavelength \> 4 sigma

5 - SOI \> 4 sigma (SO2 present)

6 - non-convergence

7 - abs(residual) \> 16.0 (fatal)

Add 8 for descending data.

Bits 4 to 6 are reserved for future use (currently set to 0).

Bit 7 - set to 0 when OMI cloud (OMCLDRR or OMCLDO2) pressure is used,

set to 1 when climatolgical cloud pressure is used.

Bits 8 to 15 are flags that are set to 0 for FALSE (good value), or

1 for TRUE (bad value):

Bit 8 - geolocation error (anomalous FOV Earth location)

Bit 9 - sza \> 88 (degree)

Bit 10 - missing input radiance

Bit 11 - error input radiance

Bit 12 - warning input radiance

Bit 13 - missing input irradiance

Bit 14 - error input irradiance

Bit 15 - warning input irradiance

\- Field Name: RadianceBadPixelFlagAccepted

Data Type: HE5T_NATIVE_UINT16

Dimensions: nXtrack,nTimes

Minimum Value: 0

Maximum Value: 65534

Missing Value: 65535

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Radiance Bad Pixel Flag Accepted

Unique Field Definition: OMI-Specific

Description: \>

Indicates the wavelength(s) in the algorithm for which the field
radiance PixelQualityFlags

was set to BAD_PIXEL (Reference 4, p. 34) in the L1b input. Bits are
indexed starting

at zero for the first wavelength in the \"Wavelength\" data field. In
all cases, the

algorithm proceededs with retrieval despite occurence of BAD_PIXEL flags
on radiance pixels.

\- Field Name: Reflectivity331

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -15.0

Maximum Value: 115.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: \"%\"

Data Source: PGE

Title: Effective Surface Reflectivity at 331 nm

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The effective surface reflectivity at 331 nm (percent).

\- Field Name: Reflectivity360

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -15.0

Maximum Value: 115.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: \"%\"

Data Source: PGE

Title: Effective Surface Reflectivity at 360 nm

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The effective surface reflectivity at 360 nm (percent).

\- Field Name: Residual

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: -32.0

Maximum Value: 32.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: N-Value Residual

Unique Field Definition: TOMS-OMI-Shared

Description: The N-value residual.

\- Field Name: ResidualStep1

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: -32.0

Maximum Value: 32.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Step 1 N-Value Residual

Unique Field Definition: TOMS-OMI-Shared

Description: The step 1 N-value residual.

\- Field Name: ResidualStep2

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: -32.0

Maximum Value: 32.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Step 2 N-Value Residual

Unique Field Definition: TOMS-OMI-Shared

Description: The step 2 N-value residual.

\- Field Name: Sensitivity

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel,nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: Ozone Sensitivity Ratio, dN/dOmega

Unique Field Definition: TOMS-OMI-Shared

Description: The ozone sensitivity ratio, dN/dOmega.

\- Field Name: SmallPixelColumn

Data Type: HE5T_NATIVE_INT16

Dimensions: nTimes

Minimum Value: 0

Maximum Value: 1000

Missing Value: -32767

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: L1B

Title: Small Pixel Column

Unique Field Definition: OMI-Specific

Description: \>

Column number on the CCD for which the pixels are additionally

transmitted without co-addition.

\- Field Name: SO2index

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -300.0

Maximum Value: 300.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: SO2 Index

Unique Field Definition: TOMS-OMI-Shared

Description: The SO2 index associated with the ground pixel.

\- Field Name: StepOneO3

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 50.0

Maximum Value: 700.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: DU

Data Source: PGE

Title: Step 1 Ozone Solution

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The step 1 ozone solution (in DU) associated with the ground pixel.

\- Field Name: StepTwoO3

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 50.0

Maximum Value: 700.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: DU

Data Source: PGE

Title: Step 2 Ozone Solution

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The step 2 ozone solution (in DU) associated with the ground pixel.

\- Field Name: TerrainPressure

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: 0.0

Maximum Value: 1013.25

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: hPa

Data Source: PGE

Title: Terrain Pressure

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The terrain pressure at the center of the ground pixel (from the V8 TOMS

algorithm).

\- Field Name: UVAerosolIndex

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nXtrack,nTimes

Minimum Value: -30.0

Maximum Value: 30.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: NoUnits

Data Source: PGE

Title: UV Aerosol Index

Unique Field Definition: TOMS-OMI-Shared

Description: \>

The UV aerosol index associated with the ground pixel.

\- Field Name: Wavelength

Data Type: HE5T_NATIVE_FLOAT

Dimensions: nWavel

Minimum Value: 300.0

Maximum Value: 400.0

Missing Value: -1.2676506e+30

Offset: 0.0

Scale Factor: 1.0

Units: nm

Data Source: PGE

Title: Wavelength

Unique Field Definition: TOMS-OMI-Shared

Description: The wavelength used in the OMTO3 algorithm.

Core Metadata:

\- Metadata Name: AssociatedInstrumentShortName

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: OMI

Data Source: MCF

Description: Actual is \"OMI\".

\- Metadata Name: AssociatedPlatformShortName

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: Aura

Data Source: MCF

Description: Actual is \"Aura\".

\- Metadata Name: AssociatedSensorShortName

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: CCD Ultra Violet,CCD Visible

Data Source: MCF

Description: Actual is \"CCD Ultra Violet\".

\- Metadata Name: AutomaticQualityFlag

Mandatory: T

Data Type: VA64

Number of Values: 1

Valids: Passed,Suspect,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

Data Source: PGE

Description: \>

The AutomaticQualityFlag is set to

1\) \"Passed\" if QAPercentHighQualityData \>= 90%,

2\) \"Suspect\" if QAPercentHightQualityData \>= 60% or if the input L1B
file

does not have its AutomaticQualityFlag set to \"Passed\",

and

3\) \"Failed\" if QAPercentHighQualityData \< 60%.

\- Metadata Name: DayNightFlag

Mandatory: T

Data Type: VA5

Number of Values: 1

Valids: Day,Night,Both

Data Source: MCF

Description: Actual is \"Day\".

\- Metadata Name: EquatorCrossingDate

Mandatory: T

Data Type: D

Number of Values: 1

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

Minimum Value: -180.0

Maximum Value: 180.0

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

Data Source: L1B

Description: The time of the ascending equator crossing in the granule.

\- Metadata Name: InputPointer

Mandatory: T

Data Type: VA255

Number of Values: 0,10

Data Source: PGE

Description: \>

Example is

(\"OMI-Aura_L1-OML1BRUG_2002m0630t2354-o21434_v001-2003m0327t181402.he4\",

\"OMI-Aura_L1-OML1BIRR_2002m0630t2354-o21434_v001-2003m0327t181812.he4\",

\"OZON_CLIM.txt\", \"TEMP_CLIM.txt\", \"terrain_pressure.he4\",

\"cloud_pressure.he4\", \"NVAL_LUT_omiTOMS_RRS.h5\",
\"DNDX_LUT_omiTOMS.h5\").

\- Metadata Name: LocalGranuleID

Mandatory: T

Data Type: VA80

Number of Values: 1

Data Source: PGE

Description: \>

Example is

\"OMI-Aura_L1-OMTO3_2002m0630t2354-o21434_v001-2003m0515t181917.he5\"

(see Appendix E of Reference 3).

\- Metadata Name: LOCALVERSIONID

Mandatory: T

Data Type: VA60

Number of Values: 1

Data Source: PCF

Description: \>

MD5 fingerprint of the HDF product file. Example valids are

\"RFC1321 MD5 = not yet calculated\" and \"RFC1321 MD5 =
\[0-9,a-f\]{32}\".

\- Metadata Name: OperationalQualityFlag

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: \>

Passed,Failed,Being Investigated,Not Investigated,Inferred Passed,

Inferred Failed,Suspect

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: OperationalQualityFlagExplanation

Mandatory: T

Data Type: VA255

Number of Values: 1

Data Source: PGE

Description: \>

The criteria for setting the OperationalQualityFlag should be stated
here

(this Metadata will not appear in the granule).

\- Metadata Name: OPERATIONMODE

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: Normal,Test

Data Source: PCF

Description: Example is \"Normal\" (not implemented yet).

\- Metadata Name: OrbitNumber

Mandatory: T

Data Type: I

Number of Values: 1

Minimum Value: 1

Maximum Value: 999999

Data Source: L1B

Description: The OMI orbit number.

\- Metadata Name: ParameterName

Mandatory: T

Data Type: VA40

Number of Values: 1

Valids: Total Column Ozone

Data Source: PGE

Description: The measured science parameter expressed in the granule.

\- Metadata Name: PGEVERSION

Mandatory: T

Data Type: VA10

Number of Values: 1

Data Source: PCF

Description: Example is \"0.9.33\" (see Appendix K of Reference 3).

\- Metadata Name: ProductionDateTime

Mandatory: T

Data Type: DT

Number of Values: 1

Data Source: TK

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

\- Metadata Name: QAPercentMissingData

Mandatory: T

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

The percent of missing data from Level 1B calibrated radiance needed by

OMTO3 PGE data per granule.

\- Metadata Name: RangeBeginningDate

Mandatory: T

Data Type: D

Number of Values: 1

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

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

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

Data Source: L1B

Description: \>

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

\- Metadata Name: REPROCESSINGACTUAL

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: \>

processed 1 time,processed 2 times,processed 3 times,processed 4 times

Data Source: PCF

Description: \>

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

\- Metadata Name: ReprocessingPlanned

Mandatory: T

Data Type: VA45

Number of Values: 1

Valids: \>

no further update anticipated,further update is anticipated,

further update anticipated using enhanced PGE

Data Source: DP

Description: Actual is \"further update is anticipated\".

\- Metadata Name: ScienceQualityFlag

Mandatory: T

Data Type: VA20

Number of Values: 1

Valids: \>

Passed,Failed,Being Investigated,Not Investigated,Inferred Passed,

Inferred Failed,Suspect

Data Source: DP

Description: Actual is \"Not Investigated\".

\- Metadata Name: ScienceQualityFlagExplanation

Mandatory: T

Data Type: VA255

Number of Values: 1

Data Source: DP

Description: \>

An explanation of the criteria used to set the science quality flag
should

go here.

\- Metadata Name: ShortName

Mandatory: T

Data Type: VA8

Number of Values: 1

Valids: OMTO3

Data Source: MCF

Description: Actual is \"OMTO3\".

\- Metadata Name: SizeMBECSDataGranule

Mandatory: F

Data Type: LF

Number of Values: 1

Minimum Value: 0.0

Maximum Value: 10000.0

Data Source: DSS

Description: \>

The volume of data contained in the granule in Mb (this Metadata will
not

appear in the granule).

\- Metadata Name: VersionID

Mandatory: T

Data Type: SI

Number of Values: 1

Minimum Value: 0

Maximum Value: 999

Data Source: MCF

Description: Actual is 1 for test and pre-launch.

Product Specific Attributes:

\- Metadata Name: EndBlockNr

Mandatory: T

Data Type: SI

Number of Values: 1,500

Minimum Value: 1

Maximum Value: 50

Data Source: L1B

Description: The number of the NOSE end block along the track.

\- Metadata Name: ExpeditedData

Mandatory: T

Data Type: VA10

Number of Values: 1

Valids: TRUE,FALSE

Data Source: L1B

Description: The indicator for expedited Level 0 data.

\- Metadata Name: ExposureTimes

Mandatory: T

Data Type: F

Number of Values: 1,256

Minimum Value: 0.0

Maximum Value: 2000.0

Data Source: L1B

Description: \>

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

\- Metadata Name: InstrumentConfigurationIDs

Mandatory: T

Data Type: SI

Number of Values: 1,256

Minimum Value: 0

Maximum Value: 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: 1,128

Minimum Value: 0.0

Maximum Value: 10.0

Data Source: L1B

Description: \>

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

measurements.

\- Metadata Name: NrMeasurements

Mandatory: T

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: \>

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

\- Metadata Name: NrSpatialZoom

Mandatory: T

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 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

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of measurements in spectral zoom mode.

\- Metadata Name: NrZoom

Mandatory: T

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 9999

Data Source: L1B

Description: The number of measurements in zoom modes.

\- Metadata Name: PathNr

Mandatory: T

Data Type: I

Number of Values: 1,500

Minimum Value: 1

Maximum Value: 466

Data Source: L1B

Description: Number of the NOSE path within the repeat cycle.

\- Metadata Name: SolarEclipse

Mandatory: T

Data Type: VA10

Number of Values: 1

Valids: TRUE,FALSE

Data Source: L1B

Description: \>

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

\- Metadata Name: SouthAtlanticAnomalyCrossing

Mandatory: T

Data Type: VA10

Number of Values: 1

Valids: TRUE,FALSE

Data Source: L1B

Description: \>

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

the South Atlantic Anomaly.

\- Metadata Name: SpacecraftManeuverFlag

Mandatory: T

Data Type: VA10

Number of Values: 1

Valids: TRUE,FALSE,UNKNOWN

Data Source: L1B

Description: \>

The indicator that during part of the measurements the spacecraft was

performing a maneuver.

\- Metadata Name: StartBlockNr

Mandatory: T

Data Type: SI

Number of Values: 1,500

Minimum Value: 1

Maximum Value: 50

Data Source: L1B

Description: Number of the NOSE start block along the track.

Archived Metadata:

\- Metadata Name: AlgorithmPath1QualityFlagCounts

Mandatory: F

Data Type: I

Number of Values: 16

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples that are processed through algorithm path 1

that have QualityFlags set in the respective categories.

\- Metadata Name: AlgorithmPath2QualityFlagCounts

Mandatory: F

Data Type: I

Number of Values: 16

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples that are processed through algorithm path 2

that have QualityFlags set in the respective categories.

\- Metadata Name: AlgorithmPath3QualityFlagCounts

Mandatory: F

Data Type: I

Number of Values: 16

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples that are processed through algorithm path 3

that have QualityFlags in the respective categories.

\- Metadata Name: APrioriOzoneProfileSource

Mandatory: F

Data Type: VA80

Number of Values: 1

Data Source: PCF

Description: \>

The source of apriori ozone profile used in derived total ozone. Example

is \"Climatology\".

\- Metadata Name: BackupSolarProductUsed

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 1

Data Source: PGE

Description: \>

Set to 1 if the backup Solar product is used instead of the normal solar

product.

\- Metadata Name: CloudPressureSource

Mandatory: F

Data Type: VA80

Number of Values: 1

Data Source: PCF

Description: \>

The source of cloud top pressure used in derived total ozone. Examples

are \"Climtology\", \"OMCLDRR Cloud Pressure\" and \"OMCLDO2 Cloud
Pressure\".

\- Metadata Name: ESDTDescriptorRevision

Mandatory: T

Data Type: VA20

Number of Values: 1

Data Source: MCF

Description: \>

The version of the ESDT descriptor file as determined by ECS.

\- Metadata Name: InstrumentConfigurationIDsNonCompatible

Mandatory: F

Data Type: VA80

Number of Values: 1

Valids: TRUE

Data Source: L1B

Description: \>

Set to TRUE if NumberOfInstrumentSettingsError is greater than 0.

Otherwise it would not appear in the Archived Metadata.

\- Metadata Name: IrradianceSceinceQualityFlag

Mandatory: F

Data Type: VA80

Number of Values: 1

Valids: \>

Passed,Failed,Being Investigated,Not Investigated,Inferred Passed,

Inferred Failed,Suspect

Data Source: L1B

Description: \>

Set to the value for the radiance product ScienceQualityFlag attribute.

\- Metadata Name: LongName

Mandatory: T

Data Type: VA80

Number of Values: 1

Valids: OMI/Aura Ozone (O3) Total Column 1-Orbit L2 Swath 13x24km

Data Source: MCF

Description: \>

Actual is \"OMI/Aura Ozone (O3) Total Column 1-Orbit L2 Swath 13x24km\"

(see Section 7.0 of Reference 2).

\- Metadata Name: NumberOfBadInputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of bad samples out of NumberOfInputSamples. The error

flag is set for these samples.

\- Metadata Name: NumberOfGlintCorrectedSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of glint corrected samples in the ascending part of the

orbit. QualityFlags is set to 1 for these samples.

\- Metadata Name: NumberOfGoodInputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of good samples out of NumberOfInputSamples in the

ascending part of the orbit. No error, warning or geolocation flags

are set for these samples.

\- Metadata Name: NumberOfGoodOutputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of good samples in the ascending part of the orbit.

QualityFlags is set to 0 for these samples.

\- Metadata Name: NumberOfInputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples read from the Level 1B file for processing.

In general this is equal to nXtrack \* nTimes .

\- Metadata Name: NumberOfInputWarningSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of warning samples out of NumberOfInputSamples. The

warning flag is set for these samples.

\- Metadata Name: NumberOfLargeSZAInputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples out of NumberOfGoodInputSamples with a Solar

Zenith Angle (SZA) greater or equal to 84.0 degrees in the ascending
part

of the orbit.

\- Metadata Name: NumberOfMissingInputSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of missing samples out of NumberOfInputSamples.

\- Metadata Name: NumberOfSkippedSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: The total number of samples that are skipped.

\- Metadata Name: NumberOfStep1InvalidSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples with errors detected in step one processing.

\- Metadata Name: NumberOfStep2InvalidSamples

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100000

Data Source: PGE

Description: \>

The total number of samples with errors detected in step two processing.

\- Metadata Name: QAPctInstrumentSettingsError

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 5 is
set.

\- Metadata Name: QAPctIrradianceError

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 14 is set.

\- Metadata Name: QAPctIrradianceMissing

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 13 is set.

\- Metadata Name: QAPctIrradianceWarning

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 15 is set.

\- Metadata Name: QAPctMeasurementError

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 1 is
set.

\- Metadata Name: QAPctMeasurementManeuver

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 5 is
set.

\- Metadata Name: QAPctMeasurementMissing

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 0 is
set.

\- Metadata Name: QAPctMeasurementRebinned

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 3 is
set.

\- Metadata Name: QAPctMeasurementSAA

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 4 is
set.

\- Metadata Name: QAPctMeasurementWarning

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of \"scan\" lines for which L2 MeasurementQualityFlags bit 2 is
set.

\- Metadata Name: QAPctRadianceError

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 11 is set.

\- Metadata Name: QAPctRadianceMissing

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 10 is set.

\- Metadata Name: QAPctRadianceWarning

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

Percent of ground pixels for which L2 QualityFlags bit 12 is set.

\- Metadata Name: QAPercentHighQualityData

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 100

Data Source: PGE

Description: \>

QAPercentHighQualityData = 100 \*

(NumberOfGoodOutputSamples + NumberOfGlintCorrectedSamples) /

(NumberOfGoodInputSamples - NumberOfLargeSZAInputSamples).

\- Metadata Name: RadianceScienceQualityFlag

Mandatory: F

Data Type: VA80

Number of Values: 1

Valids: \>

Passed,Failed,Being Investigated,Not Investigated,Inferred Passed,

Inferred Failed,Suspect

Data Source: L1B

Description: \>

Set to the value for the radiance product ScienceQualityFlag metadata

attribute.

\- Metadata Name: SnowIceSource

Mandatory: F

Data Type: VA80

Number of Values: 1

Data Source: PCF

Description: \>

The source of Snow/Ice coverage used in derived total ozone. Example is

\"NISE from OML1BRUG\".

\- Metadata Name: SolarIrradianceWarning

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 1

Data Source: PGE

Description: Set to 1 if NumberOfIrradianceWarning is larger than 0.

\- Metadata Name: SolarProductMissing

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 1

Data Source: PGE

Description: \>

Set to 1 if Normal Solar product could not be opened, or when there is

fatal error in reading the solar irradiance file.

\- Metadata Name: SolarProductOutOfDate

Mandatory: F

Data Type: I

Number of Values: 1

Minimum Value: 0

Maximum Value: 1

Data Source: PGE

Description: \>

Set to 1 if the time difference between the used Solar product and the

radiance file is larger than the threshold.

\- Metadata Name: TemperatureSource

Mandatory: F

Data Type: VA80

Number of Values: 1

Data Source: PCF

Description: \>

The source of temperature profile used in derived total ozone. Example

is \"Climtology\".

\- Metadata Name: TerrainPressureSource

Mandatory: F

Data Type: VA80

Number of Values: 1

Data Source: PCF

Description: \>

The source of terrain pressure used in derived total ozone. Example is

\"Climtology\".

\- Metadata Name: ZonalLatitudeMaximum

Mandatory: F

Data Type: D

Number of Values: 5

Minimum Value: -90.0

Maximum Value: 90.0

Data Source: PGE

Description: The maximum latitude of each zone.

\- Metadata Name: ZonalLatitudeMinimum

Mandatory: F

Data Type: D

Number of Values: 5

Minimum Value: -90.0

Maximum Value: 90.0

Data Source: PGE

Description: The minimum latitude of each zone.

\- Metadata Name: ZonalOzoneMaximum

Mandatory: F

Data Type: D

Number of Values: 5

Minimum Value: 0.0

Maximum Value: 700.0

Data Source: PGE

Description: The maximum ozone (in DU) of each zone.

\- Metadata Name: ZonalOzoneMinimum

Mandatory: F

Data Type: D

Number of Values: 5

Minimum Value: 0.0

Maximum Value: 700.0

Data Source: PGE

Description: The minimum ozone (in DU) of each zone.

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, 16 October 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)