Shortname: OMTO3 Longname: OMI/Aura Ozone (O3) Total Column 1-Orbit L2 Swath 13x24km PFS Version: 0.9.33 Date: 8 October 2004 Author(s): Kai Yang (SSAI), Peter Leonard (SSAI) PGE Version: 0.9.33 and newer Lead Algorithm Scientist: Pawan K. Bhartia (NASA/GSFC) Lead Algorithm Developer: Charles Wellemeyer (SSAI) Lead PGE Developer: Kai Yang (SSAI) PGE Developer(s): 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 "0.9.33" (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: -5.0.0 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: CloudFraction 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: Effective Cloud Fraction Unique Field Definition: TOMS-OMI-Shared Description: The effective cloud fraction. - Field Name: CloudTopPressure 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: Cloud Top 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 7 are reserved for future use (currently set to 0). 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: 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 descending 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 descending 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 descending 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)