OPeNDAP Data Access Form for OMI-Aura_L3-OMHCHOd_2008m0715_v003-2019m0726t024133.nc
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dataset: OMI-Aura_L3-OMHCHOd_2008m0715_v003-2019m0726t024133.nc




  • HDF5_GLOBAL
    • IdentifierProductDOI: 10.5067/AURA/OMI/DATA3010
    • ProductGenerationAlgorithm: OMHCHOd
    • RangeBeginningDate: 2008-07-15
    • ContactPersonName: Kelly Chance
    • GranuleID: OMI-Aura_L3-OMHCHOd_2008m0715_v003-2019m0726t024133.nc
    • RangeBeginningTime: 00:00:00Z
    • RangeEndingTime: 00:00:00Z
    • ContactPersonEmail: kchange@cfa.harvard.edu
    • DataSetQuality: OMHCHOd dataset has been computed after excluding level 2 observations with SZA > 70 and cloud fraction > 0.3 and including only the highest quality retrievals as characterized by the level 2 product quality flags. Further details can be found in the OMHCHOd.README file
    • ProcessingLevel: Level 3
    • VersionID: 003
    • IdentifierProductionDOIAuthority: https://www.doi.org
    • references: Sun et al., 2018 (https://doi.org/10.5194/amt-11-6679-2018),Gonzalez Abad et al., 2015 (https://doi.org/10.5194/amt-8-19-2015)
    • SouthernmostLatitude: -90.00000000
    • ContactPersonRole: Lead algorithm scientist
    • ObservationArea: Global
    • institution: OMI SIPS
    • ProductionDateTime: 2019m0726t024133Z
    • NorthernmostLatitude: 90.00000000
    • MaximumCloudFraction: 0.3000000119
    • ProductGenerationAlgorithmVersion: 0.0.5
    • LongitudeResolution: 0.1000000015
    • title: OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid
    • MaximumSZA: 70.00000000
    • Format: NetCDF-4
    • EasternmostLongitude: 180.0000000
    • InputOriginalFile: OMI-Aura_L2-OMHCHO_2008m0714t2232-o21271_v003-2014m0624t050937.he5,OMI-Aura_L2-OMHCHO_2008m0715t0011-o21272_v003-2014m0624t051237.he5,OMI-Aura_L2-OMHCHO_2008m0715t0150-o21273_v003-2014m0624t051458.he5,OMI-Aura_L2-OMHCHO_2008m0715t0329-o21274_v003-2014m0624t064916.he5,OMI-Aura_L2-OMHCHO_2008m0715t0508-o21275_v003-2014m0624t051352.he5,OMI-Aura_L2-OMHCHO_2008m0715t0646-o21276_v003-2014m0624t051807.he5,OMI-Aura_L2-OMHCHO_2008m0715t0825-o21277_v003-2014m0624t051610.he5,OMI-Aura_L2-OMHCHO_2008m0715t1004-o21278_v003-2014m0624t064024.he5,OMI-Aura_L2-OMHCHO_2008m0715t1143-o21279_v003-2014m0624t051522.he5,OMI-Aura_L2-OMHCHO_2008m0715t1322-o21280_v003-2014m0624t051730.he5,OMI-Aura_L2-OMHCHO_2008m0715t1501-o21281_v003-2014m0624t051659.he5,OMI-Aura_L2-OMHCHO_2008m0715t1640-o21282_v003-2014m0624t051904.he5,OMI-Aura_L2-OMHCHO_2008m0715t1819-o21283_v003-2014m0624t052152.he5,OMI-Aura_L2-OMHCHO_2008m0715t1958-o21284_v003-2014m0624t051826.he5,OMI-Aura_L2-OMHCHO_2008m0715t2136-o21285_v003-2014m0624t052002.he5,OMI-Aura_L2-OMHCHO_2008m0715t2315-o21286_v003-2014m0624t052113.he5
    • Conventions: CF-1.7
    • source: OMI
    • DayOfYear: 197
    • LatitudeResolution: 0.1000000015
    • LongName: OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid
    • RangeEndingDate: 2008-07-16
    • ShortName: OMHCHOd
    • WesternmostLongitude: -180.0000000
    • history: 2019m0726t024133Z; Original file created by OMI SIPS
  • key_science_data:
  • support_data:
  • qa_statistics:


  • key_science_data_column_amount[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: mean formaldehyde column amount; units of molecules/cm^2
      • long_name: HCHO column amount
      • units: molecules/cm^2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: column_amount
      • fullnamepath: /key_science_data/column_amount
    key_science_data_column_uncertainty[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: mean column amount uncertainty; units of molecules/cm^2
      • long_name: HCHO column uncertainty
      • units: molecules/cm^2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: column_uncertainty
      • fullnamepath: /key_science_data/column_uncertainty
    support_data_albedo[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: surface albedo
      • long_name: surface albedo
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: albedo
      • fullnamepath: /support_data/albedo
    support_data_terrain_height[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Int16)
    • attributes
      • _FillValue: -30000
      • comment: terrain height
      • long_name: terrain height
      • units: m
      • valid_min: -1000
      • valid_max: 10000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: terrain_height
      • fullnamepath: /support_data/terrain_height
    support_data_cloud_fraction[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: cloud fraction for AMF calculation
      • long_name: AMF cloud fraction
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: cloud_fraction
      • fullnamepath: /support_data/cloud_fraction
    support_data_cloud_pressure[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: cloud pressure for AMF calculation
      • long_name: AMF cloud pressure
      • units: hPa
      • valid_min: 0.000000000
      • valid_max: 1200.000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: cloud_pressure
      • fullnamepath: /support_data/cloud_pressure
    support_data_amf[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: air mass factor (AMF)
      • long_name: air mass factor
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 100.0000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: amf
      • fullnamepath: /support_data/amf
    support_data_sample_weight[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: sample weight
      • long_name: sample weight
      • units: 1
      • valid_min: 0.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: sample_weight
      • fullnamepath: /support_data/sample_weight
    qa_statistics_num_samples[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000000
      • comment: number of samples in the calculation considering the summed spatial sensitivity of all satellite pixels in each level 3 grid box
      • long_name: number of samples
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1000.000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: num_samples
      • fullnamepath: /qa_statistics/num_samples
    qa_statistics_data_quality_flag[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Int16)
    • attributes
      • _FillValue: 2
      • comment: main data quality flag. 0 (good, number of samples > 0.1)1 (good, number of samples < 0.1) 2 (bad / not computed)
      • long_name: main data quality flag
      • falg_values: 0, 1, 2
      • flag_meanings: good_number_of_samples_greater_than_0.1 good_number_of_samples_less_than_0.1 bad_or_not_computed
      • valid_min: 0
      • valid_max: 2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: data_quality_flag
      • fullnamepath: /qa_statistics/data_quality_flag
    latitude[ latitude= 0 ..1799] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: latitude at grid box center
      • long_name: latitude
      • units: degrees_north
      • valid_min: -90.00000000
      • valid_max: 90.00000000
      • _Storage: contiguous
      • origname: latitude
      • fullnamepath: /latitude
    longitude[ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: longitude at grid box center
      • long_name: longitude
      • units: degrees_east
      • valid_min: -180.0000000
      • valid_max: 180.0000000
      • _Storage: contiguous
      • origname: longitude
      • fullnamepath: /longitude

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