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)