Attributes { Metadata { String iso_19139_dataset_xml_md5 "0a387fa1098230f02929eed934d0e2a8"; String iso_19139_series_xml_md5 "d1977ef176fc667a0b1f6c3cd1cdc851"; String iso_19139_dataset_xml " SMAP_L2_SM_P_30058_D_20200916T194350_R19240_001.h5 eng utf8 dataset NSIDC DAAC > National Snow and Ice Data Center DAAC nsidc@nsidc.org http://nsidc.org/daac/ pointOfContact 2014-06-17 ISO 19115-2 Geographic information - Metadata - Part 2: Extensions for imagery and gridded data ISO 19115-2:2009-02-15 1 area false false false SMAP Fixed Earth Grids, SMAP Science Document no: 033, May 11, 2009 SMAP_L2_SM_P_30058_D_20200916T194350_R19240_001.h5 2024-06-02 creation R19240 0ef26bfb-0e46-4eb5-bfff-62632f8d346c Open Software Foundation A Universally Unique Identifier (UUID) SPL2SMP http://smap.jpl.nasa.gov The ECS Short Name 009 gov.nasa.esdis The ECS Version ID Jet Propulsion Laboratory originator L2_SM_P The Calibration and Validation Version 2 of the SMAP Level 2 Passive Soil Moisture Science Processing Software. Passive soil moisture estimates onto a 36-km global Earth-fixed grid, based on radiometer measurements acquired when the SMAP spacecraft is travelling from North to South at approximately 6:00 AM local time. The SMAP L2_SM_P effort provides soil moistures based on radiometer data on a 36 km grid. The software that generates the Level 2 Passive Soil Moisture product and the data system that automates its production were designed and implemented at the Jet Propulsion Laboratory, California Institute of Technology in Pasadena, California. onGoing asNeeded 2016-05-01 HDF5 1.8.13 SMAP_L2_SM_P_30058_D_20200916T194350_R19240_001.qa 2024-06-02 creation R19240 An ASCII product that contains statistical information on data product results. These statistics enable data producers and users to assess the quality of the data in the data product granule. crossReference grid eng utf8 geoscientificInformation Data product generated by the SMAP mission in HDF5 format with metadata that conforms to the ISO 19115 model. Soil moistures retrieved from brightness temperatures recorded by the SMAP radiometer over land targets on the descending (AM) SMAP half-orbits when the SMAP spacecraft is travelling from North to South, while the SMAP instruments are operating in the nominal mode. Retrievals are performed but flagged as questionable over urban areas, mountainous areas with high elevation variability, and areas with high ( > 5 kg/m**2) vegetation water content; for retrievals using the high-resolution radar, cells in the nadir region are also flagged. Retrievals are inhibited for permanent snow/ice, frozen ground, and excessive static or transient open water in the cell, and for excessive RFI in the sensor data. true -76.9300003051758 51.689998626709 -75.6800003051758 76.6900024414062 -70 101.690002441406 -60 117.98999786377 -50 125.879997253418 -40 130.960006713867 -30 134.75 -20 137.529998779297 -10 140.300003051758 0 142.300003051758 10 144.300003051758 20 146.279998779297 30 148.5 40 150.460006713867 50 152.880004882812 60 155.740005493164 70 159.940002441406 80 170.789993286133 85.4300003051758 -167.199996948242 86.6800003051758 -143.199996948242 87.1800003051758 -118.199996948242 77.1800003051758 -118.199996948242 75.6800003051758 -143.199996948242 70 -168.199996948242 60 176.009994506836 50 168.369995117188 40 163.289993286133 30 159.740005493164 20 156.710006713867 10 154.449996948242 0 152.190002441406 -10 150.199996948242 -20 148.210006713867 -30 146.240005493164 -40 144.039993286133 -50 141.869995117188 -60 139.009994506836 -70 134.550003051758 -80 124.199996948242 -85.4300003051758 100.690002441406 -86.6800003051758 76.6900024414062 -86.9300003051758 51.689998626709 -76.9300003051758 51.689998626709 2020-09-16T19:43:49.831Z 2020-09-16T20:37:11.251Z attribute soil_moisture Percent of Missing Data Percentage of EASE2 grid cells that lack soil moisture retrieval values relative to the total number of grid cells where soil moisture retrieval was attempted. directInternal *undefined* percent 82.1613998413086 Soil moisture retrieved using default retrieval algorithm from brightness temperatures acquired by the SMAP radiometer during the spacecraft descending pass. 2024-06-02T17:14:13.249Z Soil Moisture Active Passive Mission (SMAP) Science Data System (SDS) Operations Facility processor L2_SM_P L2_SM_P_SPS 2014-04-15 revision 028 Algorithm Theoretical Basis Document: SMAP L2 and L3 Radiometer Soil Moisture (Passive) Data Products: L2_SM_P & L3_SM_P 2012-10-26 publication Preliminary Soil Moisture Active Passive (SMAP) Radiometer processing algorithm 2022-11-15 revision 026 Soil moisture retrieval is obtained using the H-polarized TB and other ancillary data. Other option algorithms exist that use a combinarion of V- and/or H-polarized TBs for soil moisture retrieval. Algorithm Theoretical Basis Document: SMAP L2 and L3 Radiometer Soil Moisture (Passive) Data Products: L2_SM_P & L3_SM_P 2014-03-04 publication Preliminary processingInformation uuid for SnowFractionUpperThreshold http://smap.jpl.nasa.gov SnowFractionUpperThreshold float 0.5 processingInformation uuid for SnowFractionLowerThreshold http://smap.jpl.nasa.gov SnowFractionLowerThreshold float 0.05 processingInformation uuid for IceFractionUpperThreshold http://smap.jpl.nasa.gov IceFractionUpperThreshold float 0.5 processingInformation uuid for IceFractionLowerThreshold http://smap.jpl.nasa.gov IceFractionLowerThreshold float 0.05 processingInformation uuid for MountainousTerrainUpperThreshold http://smap.jpl.nasa.gov MountainousTerrainUpperThreshold float 6 processingInformation uuid for RainFractionUpperThreshold http://smap.jpl.nasa.gov RainFractionUpperThreshold float 0.00706 processingInformation uuid for RainFractionLowerThreshold http://smap.jpl.nasa.gov RainFractionLowerThreshold float 0.00027778 processingInformation uuid for ParameterVersionID http://smap.jpl.nasa.gov ParameterVersionID string 016 processingInformation uuid for FrozenGroundFractionLowerThreshold http://smap.jpl.nasa.gov FrozenGroundFractionLowerThreshold float 0.05 processingInformation uuid for FrozenGroundFractionUpperThreshold http://smap.jpl.nasa.gov FrozenGroundFractionUpperThreshold float 0.5 processingInformation uuid for MountainousTerrainLowerThreshold http://smap.jpl.nasa.gov MountainousTerrainLowerThreshold float 3 processingInformation uuid for algorithmSelection http://smap.jpl.nasa.gov algorithmSelection int 0 processingInformation uuid for UrbanFractionLowerThreshold http://smap.jpl.nasa.gov UrbanFractionLowerThreshold float 0.25 processingInformation uuid for epochJulianDate http://smap.jpl.nasa.gov epochJulianDate float 2.45154e+06 processingInformation uuid for VWCLowerThreshold http://smap.jpl.nasa.gov VWCLowerThreshold float 5 processingInformation uuid for WaterFractionUpperThreshold http://smap.jpl.nasa.gov WaterFractionUpperThreshold float 0.5 processingInformation uuid for timeVariableEpoch http://smap.jpl.nasa.gov timeVariableEpoch string J2000 processingInformation uuid for WaterFractionLowerThreshold http://smap.jpl.nasa.gov WaterFractionLowerThreshold float 0.05 processingInformation uuid for UrbanFractionUpperThreshold http://smap.jpl.nasa.gov UrbanFractionUpperThreshold float 1 processingInformation uuid for epochUTCDateTime http://smap.jpl.nasa.gov epochUTCDateTime dateTime 2000-01-01T11:58:55.816Z processingInformation uuid for VWCUpperThreshold http://smap.jpl.nasa.gov VWCUpperThreshold float 30 Database that specifies representative fractions of sand that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. sand_M03_006.float32 2019-11-07 creation 006 SOIL_TEXTURE_SAND Database that specifies representative fractions of water that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. creation WATER_FRACTION Provides the Euclidean distance at each grid point to the nearest significant water body. dist2water_M36_002.float32 2014-02-04 creation 002 DIST2WATER Database that specifies representative fractions of clay that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. clay_M03_006.float32 2019-11-07 creation 006 SOIL_TEXTURE_CLAY Database that specifies the organic content that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. OrganicContent_M03_006.float32 2021-06-16 creation UNKNOWN SOIL_TEXTURE_ORGANICCONTENT Database that specifies the fraction of permanent water found in each of the 36 km cells in the cylindrical Equal-Area Scalable (EASE) Earth Grid. This data set was derived from the MODIS MOD44W data product. waterfrac_M03_003.float32 2022-06-01 creation 003 WATER_FRACTION Predominant land cover types that appear in each of the 3 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP). dominantIGBP_M03_B20120101_003.uint8 2014-03-31 creation 003 LANDCOVER_CLASS A configuration file that lists the entire content of the output Level 2 Passive Soil Moisture product. SMAP_L2_SM_P_SPS_OutputConfig_L2_SM_P.xml 2024-06-02 creation R19240 OutputConfig The SMAP Level 1C_TB product provides radiometer brightness temperatures in half-orbit granules, gridded at 36 km grid resolution, on 3 EASE2 Earth-fixed grids - 1) Cylindrical projection, 2) Northern polar projection, 3) Southern polar projection. SMAP_L1C_TB_30058_D_20200916T194350_R19240_001.h5 2024-06-02 creation R19240 doi:10.5067/DV7IX2DQ681Y gov.nasa.esdis A Digital Object Identifier (DOI) that provides a persistent interoperable means to locate the SMAP Radiometer Level 1C (L1C_TB) data product. L1C_TB http://smap.jpl.nasa.gov A short name employed by the Soil Moisture Active Passive mission to identify the Level 1C Radiometer product. SMAP L1C_TB SPS 36 A configuration file that specifies the source of the values for each of the data elements that comprise the metadata in the output Level 2 Passive Soil Moisture Product. SMAP_L2_SM_P_SPS_MetConfig_L1C_TB.xml 2024-06-02 creation R19240 MetConfig Representative soil temperature for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 TSURF data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC). tsurfGMAO_M09_P20200916T190000_A_20200916T190000_R18240_001.float32 2022-01-19 creation 001 TSURF Representative soil temperature for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 TSURF data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC). tsurfGMAO_M09_P20200916T200000_A_20200916T200000_R18240_001.float32 2022-01-19 creation 001 TSURF Representative soil temperature for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 TSURF data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC). tsurfGMAO_M09_P20200916T210000_A_20200916T210000_R18240_001.float32 2022-01-19 creation 001 TSURF The SMAP Level 1C_TB product provides radiometer brightness temperatures in half-orbit granules, gridded at 36 km grid resolution, on 3 EASE2 Earth-fixed grids - 1) Cylindrical projection, 2) Northern polar projection, 3) Southern polar projection. SMAP_L1C_TB_30058_D_20200916T194350_R19240_001.h5 2024-06-02 creation R19240 doi:10.5067/DV7IX2DQ681Y gov.nasa.esdis A Digital Object Identifier (DOI) that provides a persistent interoperable means to locate the SMAP Active Level 2 Soil Moisture (L2_SM_A) data product. L1C_TB http://smap.jpl.nasa.gov A short name employed by the Soil Moisture Active Passive mission to identify the Active Level 2 Soil Moisture product. SMAP_L2_SM_A 3 A configuration file that specifies the complete set of elements within the input SMAP L2_SM_A Product that the Level 2 Passive Soil Moisture Science Processing Software (SPS) needs in order to function. SMAP_L2_SM_P_SPS_InputConfig_L2_SM_A.xml 2024-06-02 creation R19240 InputConfig A configuration file that specifies the complete set of elements within the input SMAP L1C Radiometer Product that the Level 2 Passive Soil Moisture Science Processing Software (SPS) needs in order to function. SMAP_L2_SM_P_SPS_InputConfig_L1C_TB.xml 2024-06-02 creation R19240 InputConfig Database that specifies a representative value of Normalized Difference Vegetation Index (NDVI) for each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. The dataset was processed by USDA from the MODIS MOD13A2 data product. NDVI_M03_260_002.int16 2013-04-24 creation 002 NDVI_CLIMATOLOGY Snow fraction data resampled to 9 km grid spacing on the cylindrical Earth Equal-Area Scalable (EASE) Grid, derived from daily NOAA IMS snow cover data. SnowIMS_M09_P20200916T000000_R17000_001.float32 2020-09-17 creation 001 SNOW Representative surface slope data for each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. These data are based on the Global Multi-resolution Terrain Elevation 2010 (GMTED2010) data set provided by the United States Geological Service (USGS). DEMSLP_M03_003.float32 2014-10-08 creation 003 DEMSLP Representative precipitation measures for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 PRECTOT data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC). PrecipGMAO_M09_P20200916T193000_A_20200916T193000_R17000_001.float32 2020-09-17 creation 001 PRECIP Predominant land cover types that appear in each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP). The data set lists multiple predominant land cover types within each 36 km cell, along with an estimated fraction of the cell covered by each predominant type. top3IGBPfrac_M36_B20120101_004.float32 2014-06-16 creation 004 LANDCOVER_CLASS_FRACTION_TOP3 Representative fraction of each of the 3 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid that is covered by Urban Area. These data are based on the Global Urban-Rural Mapping Project (GRUMP) conducted by the Center for International Earth Science Information Network (CIESUN) at Columbia University. UrbanFraction_M03_002.float32 2013-04-25 creation 002 URBAN_FRACTION The Surface ROUGHNESS_COEFF Coefficient file contains the RMS ROUGHNESS_COEFF in cm for each 3 km grid cell on the cylindrical Earth Equal-Area Scalable (EASE) grid. ROUGHNESS_COEFF data is in the physical unit of “cm”; and a scale factor of 10 is used to convert into unit-less coefficients. This is a static map based on MODIS IGBP land cover map. h_M03_010.float32 2022-06-16 creation 010 SURFACE_ROUGHNESS_COEFF Database that specifies representative bulk density that is found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. bulk_M03_006.float32 2019-11-07 creation 006 SOIL_TEXTURE_BULK Predominant land cover types that appear in each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP). The data set lists multiple predominant land cover types within each 36 km cell, along with an estimated fraction of the cell covered by each predominant type. top3IGBPtype_M36_B20120101_004.uint8 2014-06-16 creation 004 LANDCOVER_CLASS_TOP3 A configuration file generated automatically within the SMAP data system that specifies all of the conditions required for each individual run of the Level 2 Passive Soil Moisture Software Processing Software (SPS). SMAP_L2_SM_P_SPS_RunConfig_20240602T171413249.xml 2024-06-02 creation R19240 RunConfig Database that specifies a representative value of Normalized Difference Vegetation Index (NDVI) for each of the 36 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. The dataset was processed by USDA from the MODIS MOD13A2 data product. maxNDVI_M03_002.int16 2013-04-24 creation 002 NDVI_MAX SMAP Handbook 2014-07-01 publication JPL CL#14-2285, JPL 400-1567 SMAP http://smap.jpl.nasa.gov The SMAP observatory houses an L-band radiometer that operates at 1.414 GHz and an L-band radar that operates at 1.225 GHz. The instruments share a rotating reflector antenna with a 6 meter aperture that scans over a 1000 km swath. The bus is a 3 axis stabilized spacecraft that provides momentum compensation for the rotating antenna. SMAP Handbook 2014-07-01 publication JPL CL#14-2285, JPL 400-1567 SMAP SAR L-Band Synthetic Aperture Radar The SMAP 1.225 GHz L-Band Radar Instrument SMAP Handbook 2014-07-01 publication JPL CL#14-2285, JPL 400-1567 SMAP RAD L-Band Radiometer The SMAP 1.414 GHz L-Band Radiometer processingInformation uuid for inclination http://smap.jpl.nasa.gov inclination float 98.0073 processingInformation uuid for halfOrbitStartDateTime http://smap.jpl.nasa.gov halfOrbitStartDateTime dateTime 2020-09-16T19:45:51.000Z processingInformation uuid for eccentricity http://smap.jpl.nasa.gov eccentricity float 0.00130105 processingInformation uuid for cycleNumber http://smap.jpl.nasa.gov cycleNumber int 256 processingInformation uuid for equatorCrossingDateTime http://smap.jpl.nasa.gov equatorCrossingDateTime dateTime 2020-09-16T20:10:38.799Z processingInformation uuid for halfOrbitEndDateTime http://smap.jpl.nasa.gov halfOrbitEndDateTime dateTime 2020-09-16T20:35:05.000Z processingInformation uuid for equatorCrossingLongitude http://smap.jpl.nasa.gov equatorCrossingLongitude float -20.5722 processingInformation uuid for referenceCRS http://smap.jpl.nasa.gov referenceCRS string Earth Centered Rotating processingInformation uuid for AntennaRotationRate http://smap.jpl.nasa.gov AntennaRotationRate float 14.6 processingInformation uuid for epoch http://smap.jpl.nasa.gov epoch dateTime 2020-09-16T19:21:29.618Z processingInformation uuid for rightAscensionAscendingNode http://smap.jpl.nasa.gov rightAscensionAscendingNode float 265.736 processingInformation uuid for meanMotion http://smap.jpl.nasa.gov meanMotion float 14.6253 processingInformation uuid for semiMajorAxis http://smap.jpl.nasa.gov semiMajorAxis float 7066.65 processingInformation uuid for pathNumber http://smap.jpl.nasa.gov pathNumber int 59 processingInformation uuid for revNumber http://smap.jpl.nasa.gov revNumber int 30058 processingInformation uuid for OrbitDirection http://smap.jpl.nasa.gov OrbitDirection string Descending processingInformation uuid for argumentOfPerigee http://smap.jpl.nasa.gov argumentOfPerigee float 69.7618 processingInformation uuid for period http://smap.jpl.nasa.gov period float 5907.57 "; String iso_19139_series_xml " L2_SM_P eng utf8 series NSIDC DAAC > National Snow and Ice Data Center DAAC nsidc@nsidc.org http://nsidc.org/daac/ pointOfContact 2014-04-15 ISO 19115-2 Geographic information - Metadata - Part 2: Extensions for imagery and gridded data ISO 19115-2:2009-02-15 SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture 2023-08-31 revision R19 SPL2SMP smap.jpl.nasa.gov The ECS Short Name 009 gov.nasa.esdis The ECS Version ID doi:10.5067/K7Y2D8QQVZ4L gov.nasa.esdis A Digital Object Identifier (DOI) National Aeronautics and Space Administration (NASA) resourceProvider Jet Propulsion Laboratory originator documentDigital The Calibration and Validation Version 2 of the SMAP Level 2 Passive Soil Moisture Science Processing Software. Passive soil moisture estimates onto a 36-km global Earth-fixed grid, based on radiometer measurements acquired when the SMAP spacecraft is travelling from North to South at approximately 6:00 AM local time. The SMAP L2_SM_P algorithm provides soil moistures based on radiometer data on a 36-km grid. The radiometer data during descending half-orbits are used by the active/passive algorithm in L2_SM_AP to disaggregate the 36 km radiometer measurements to create the 9 km active-passive products. The software that generates the Level 2 Soil Moisture Passive product and the data system that automates its production were designed and implemented at the Jet Propulsion Laboratory, California Institute of Technology in Pasadena, California. onGoing National Snow and Ice Data Center distributor asNeeded 2017-04-01 series HDF5 1.8.13 EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT EARTH SCIENCE > CLIMATE INDICATORS > LAND SURFACE/AGRICULTURE INDICATORS > SOIL MOISTURE EARTH SCIENCE > SPECTRAL/ENGINEERING > MICROWAVE > BRIGHTNESS TEMPERATURE EARTH SCIENCE > BIOSPHERE > VEGETATION > PLANT CHARACTERISTICS > VEGETATION WATER CONTENT EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > SURFACE ROUGHNESS EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > ALBEDO EARTH SCIENCE > TERRESTRIAL HYDROSPHERE> SNOW/ICE > FREEZE/THAW theme NASA/GCMD Earth Science Keywords Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > SMAP L-BAND RADIOMETER > SMAP L-Band Radiometer theme NASA/GCMD Earth Science Keywords Earth Observation Satellites > NASA Decadal Survey > SMAP > Soil Moisture Active and Passive Observatory theme NASA/GCMD Earth Science Keywords GEOGRAPHIC REGION > GLOBAL theme NASA/GCMD Earth Science Keywords SMAP largerWorkCitation mission grid 36 eng utf8 geoscientificInformation Data product generated by the SMAP mission in HDF5 format with metadata that conforms to the ISO 19115 model. Soil moisture is retrieved over land targets on the descending (AM) and ascending (PM) SMAP half-orbits, while the SMAP instruments are operating in the nominal mode. Retrievals are performed but flagged as questionable over urban areas, mountainous areas with high elevation variability, and areas with high ( > 5 kg/m**2) vegetation water content; for retrievals using the high-resolution radar, cells in the nadir region are also flagged. Retrievals are inhibited for permanent snow/ice, frozen ground, and excessive static or transient open water in the cell, and for excessive RFI in the sensor data. 1 -180.00 180.00 -85.0445 85.0445 2015-03-31T00:00:00.000Z 2020-12-31T00:00:00.000Z Soil Moisture Active Passive Mission L2_SM_P Product Specification Document 2012-10-25 publication 1.0 L2_SM_P smap.jpl.nasa.gov Short name used by the Soil Moisture Active Passive (SMAP) mission to identify the Level 2 Passive Soil Moisture product. documentDigital The Product Specification Document that fully describes the content and format of this data product. eng utf8 "; String fullnamepath "/Metadata"; } Metadata_AcquisitionInformation { } Metadata_AcquisitionInformation_platform { String description "The SMAP observatory houses an L-band radiometer that operates at 1.414 GHz and an L-band radar that operates at 1.225 GHz. The instruments share a rotating reflector antenna with a 6 meter aperture that scans over a 1000 km swath. The bus is a 3 axis stabilized spacecraft that provides momentum compensation for the rotating antenna."; Float32 antennaRotationRate 14.60000038; String identifier "SMAP"; String fullnamepath "/Metadata/AcquisitionInformation/platform"; } Metadata_AcquisitionInformation_radarDocument { String edition "JPL CL#14-2285, JPL 400-1567"; String title "SMAP Handbook"; String publicationDate "2014-07-01"; String fullnamepath "/Metadata/AcquisitionInformation/radarDocument"; } Metadata_AcquisitionInformation_radiometerDocument { String edition "JPL CL#14-2285, JPL 400-1567"; String title "SMAP Handbook"; String publicationDate "2014-07-01"; String fullnamepath "/Metadata/AcquisitionInformation/radiometerDocument"; } Metadata_AcquisitionInformation_radiometer { String description "The SMAP 1.414 GHz L-Band Radiometer"; String type "L-Band Radiometer"; String identifier "SMAP RAD"; String fullnamepath "/Metadata/AcquisitionInformation/radiometer"; } Metadata_AcquisitionInformation_radar { String description "The SMAP 1.225 GHz L-Band Radar Instrument"; String type "L-Band Synthetic Aperture Radar"; String identifier "SMAP SAR"; String fullnamepath "/Metadata/AcquisitionInformation/radar"; } Metadata_AcquisitionInformation_platformDocument { String edition "JPL CL#14-2285, JPL 400-1567"; String title "SMAP Handbook"; String publicationDate "2014-07-01"; String fullnamepath "/Metadata/AcquisitionInformation/platformDocument"; } Metadata_DataQuality { String scope "soil_moisture"; String fullnamepath "/Metadata/DataQuality"; } Metadata_DataQuality_DomainConsistency { String nameOfMeasure "Percentage of EASE2 grid cells with Retrieved Soil Moistures within the Acceptable Range."; String measureDescription "Percentage of EASE2 grid cells with soil moisture measures that fall within of a predefined acceptable range."; String evaluationMethodType "directInternal"; String unitOfMeasure "percent"; Float32 value 17.69854736; String fullnamepath "/Metadata/DataQuality/DomainConsistency"; } Metadata_DataQuality_CompletenessOmission { Float32 value 82.16139984; String measureDescription "Percentage of EASE2 grid cells that lack soil moisture retrieval values relative to the total number of grid cells where soil moisture retrieval was attempted."; String nameOfMeasure "Percent of Missing Data"; String unitOfMeasure "percent"; String evaluationMethodType "directInternal"; String fullnamepath "/Metadata/DataQuality/CompletenessOmission"; } Metadata_ProductSpecificationDocument { String language "eng"; String characterSet "utf8"; String edition "1.0"; String title "Soil Moisture Active Passive Mission L2_SM_P Product Specification Document"; String publicationDate "2012-10-25"; String SMAPShortName "L2_SM_P"; String fullnamepath "/Metadata/ProductSpecificationDocument"; } Metadata_SeriesIdentification { String identifier_product_DOI "doi:10.5067/K7Y2D8QQVZ4L"; String shortName "SPL2SMP"; String mission "SMAP"; String characterSet "utf8"; String resourceProviderOrganizationName "National Aeronautics and Space Administration (NASA)"; String language "eng"; String otherCitiationDetails "The Calibration and Validation Version 2 of the SMAP Level 2 Passive Soil Moisture Science Processing Software."; String ECSVersionID "009"; String abstract "Passive soil moisture estimates onto a 36-km global Earth-fixed grid, based on radiometer measurements acquired when the SMAP spacecraft is travelling from North to South at approximately 6:00 AM local time."; String status "onGoing"; String revisionDate "2023-08-31"; String credit "The software that generates the Level 2 Soil Moisture Passive product and the data system that automates its production were designed and implemented at the Jet Propulsion Laboratory, California Institute of Technology in Pasadena, California."; String topicCategory "geoscientificInformation"; String purpose "The SMAP L2_SM_P algorithm provides soil moistures based on radiometer data on a 36-km grid. The radiometer data during descending half-orbits are used by the active/passive algorithm in L2_SM_AP to disaggregate the 36 km radiometer measurements to create the 9 km active-passive products."; String longName "SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture"; String pointOfContact "National Snow and Ice Data Center"; String CompositeReleaseID "R19"; String spatialRepresentationType "grid"; String fullnamepath "/Metadata/SeriesIdentification"; } Metadata_DatasetIdentification { String shortName "SPL2SMP"; String characterSet "utf8"; String UUID "0ef26bfb-0e46-4eb5-bfff-62632f8d346c"; String language "eng"; String formatVersion "1.8.13"; String ECSVersionID "009"; String abstract "Passive soil moisture estimates onto a 36-km global Earth-fixed grid, based on radiometer measurements acquired when the SMAP spacecraft is travelling from North to South at approximately 6:00 AM local time."; String creationDate "2024-06-02"; String status "onGoing"; String credit "The software that generates the Level 2 Passive Soil Moisture product and the data system that automates its production were designed and implemented at the Jet Propulsion Laboratory, California Institute of Technology in Pasadena, California."; String topicCategory "geoscientificInformation"; String purpose "The SMAP L2_SM_P effort provides soil moistures based on radiometer data on a 36 km grid."; String format "HDF5"; String fileName "SMAP_L2_SM_P_30058_D_20200916T194350_R19240_001.h5"; String maintenanceAndUpdateFrequency "asNeeded"; String CompositeReleaseID "R19240"; String originatorOrganizationName "Jet Propulsion Laboratory"; String maintenanceDate "2016-05-01"; String SMAPShortName "L2_SM_P"; String spatialRepresentationType "grid"; String otherCitationDetails "The Calibration and Validation Version 2 of the SMAP Level 2 Passive Soil Moisture Science Processing Software."; String fullnamepath "/Metadata/DatasetIdentification"; } Metadata_Extent { String description "Soil moistures retrieved from brightness temperatures recorded by the SMAP radiometer over land targets on the descending (AM) SMAP half-orbits when the SMAP spacecraft is travelling from North to South, while the SMAP instruments are operating in the nominal mode. Retrievals are performed but flagged as questionable over urban areas, mountainous areas with high elevation variability, and areas with high ( > 5 kg/m**2) vegetation water content; for retrievals using the high-resolution radar, cells in the nadir region are also flagged. Retrievals are inhibited for permanent snow/ice, frozen ground, and excessive static or transient open water in the cell, and for excessive RFI in the sensor data."; Float32 polygonPosList -76.93000031, 51.68999863, -75.68000031, 76.69000244, -70.00000000, 101.6900024, -60.00000000, 117.9899979, -50.00000000, 125.8799973, -40.00000000, 130.9600067, -30.00000000, 134.7500000, -20.00000000, 137.5299988, -10.00000000, 140.3000031, 0.000000000, 142.3000031, 10.00000000, 144.3000031, 20.00000000, 146.2799988, 30.00000000, 148.5000000, 40.00000000, 150.4600067, 50.00000000, 152.8800049, 60.00000000, 155.7400055, 70.00000000, 159.9400024, 80.00000000, 170.7899933, 85.43000031, -167.1999969, 86.68000031, -143.1999969, 87.18000031, -118.1999969, 77.18000031, -118.1999969, 75.68000031, -143.1999969, 70.00000000, -168.1999969, 60.00000000, 176.0099945, 50.00000000, 168.3699951, 40.00000000, 163.2899933, 30.00000000, 159.7400055, 20.00000000, 156.7100067, 10.00000000, 154.4499969, 0.000000000, 152.1900024, -10.00000000, 150.1999969, -20.00000000, 148.2100067, -30.00000000, 146.2400055, -40.00000000, 144.0399933, -50.00000000, 141.8699951, -60.00000000, 139.0099945, -70.00000000, 134.5500031, -80.00000000, 124.1999969, -85.43000031, 100.6900024, -86.68000031, 76.69000244, -86.93000031, 51.68999863, -76.93000031, 51.68999863; String rangeBeginningDateTime "2020-09-16T19:43:49.831Z"; String rangeEndingDateTime "2020-09-16T20:37:11.251Z"; String fullnamepath "/Metadata/Extent"; } Metadata_QADatasetIdentification { String fileName "SMAP_L2_SM_P_30058_D_20200916T194350_R19240_001.qa"; String abstract "An ASCII product that contains statistical information on data product results. These statistics enable data producers and users to assess the quality of the data in the data product granule."; String creationDate "2024-06-02"; String fullnamepath "/Metadata/QADatasetIdentification"; } Metadata_GridSpatialRepresentation { String orientationParameterAvailability "0"; String controlPointAvailability "0"; String transformationParameterAvailability "0"; UInt32 dimensionSize 17137; Float32 resolution 36.00000000; String georeferencedParameters "SMAP Fixed Earth Grids, SMAP Science Document no: 033, May 11, 2009"; String cellGeometry "area"; String fullnamepath "/Metadata/GridSpatialRepresentation"; } Metadata_GridSpatialRepresentation_GridDefinition { String description "The Equal-Area Scalable Earth Grid (EASE-Grid 2.0) is used for gridding satellite data sets. The EASE-Grid 2.0 is defined on the WGS84 ellipsoid to allow users to import data into standard GIS software formats such as GeoTIFF without reprojection."; String identifier "Equal-Area Scalable Earth Grid"; String fullnamepath "/Metadata/GridSpatialRepresentation/GridDefinition"; } Metadata_GridSpatialRepresentation_GridDefinitionDocument { String edition "EASE-Grid 2.0"; String title "EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets (ISPRS Int. J. Geo-Inf. 2012, 1, 32-45; doi:10.3390/ijgi1010032)"; String publicationDate "2012-03-31"; String fullnamepath "/Metadata/GridSpatialRepresentation/GridDefinitionDocument"; } Metadata_OrbitMeasuredLocation { Float32 equatorCrossingLongitude -20.57220459; Float32 meanMotion 14.62529755; Float32 eccentricity 0.001301046112; Float32 semiMajorAxis 7066.653809; Int32 orbitPathNumber 59; String epoch "2020-09-16T19:21:29.618Z"; Int32 cycleNumber 256; String halfOrbitStopDateTime "2020-09-16T20:35:05.000Z"; Float32 inclination 98.00727081; String halfOrbitStartDateTime "2020-09-16T19:45:51.000Z"; String equatorCrossingDateTime "2020-09-16T20:10:38.799Z"; String orbitDirection "Descending"; Float32 argumentOfPerigee 69.76178741; Float32 orbitPeriod 5907.572266; String referenceCRS "Earth Centered Rotating"; Int32 revNumber 30058; Float32 rightAscensionAscendingNode 265.7358398; String fullnamepath "/Metadata/OrbitMeasuredLocation"; } Metadata_Lineage { } Metadata_Lineage_DIST2WATER { String version "002"; String fileName "dist2water_M36_002.float32"; String creationDate "2014-02-04"; String fullnamepath "/Metadata/Lineage/DIST2WATER"; } Metadata_Lineage_OutputConfiguration { String description "A configuration file that lists the entire content of the output Level 2 Passive Soil Moisture product."; String version "R19240"; String fileName "SMAP_L2_SM_P_SPS_OutputConfig_L2_SM_P.xml"; String creationDate "2024-06-02"; String fullnamepath "/Metadata/Lineage/OutputConfiguration"; } Metadata_Lineage_SURFACE_ROUGHNESS_COEFF { String description "The Surface ROUGHNESS_COEFF Coefficient file contains the RMS ROUGHNESS_COEFF in cm for each 3 km grid cell on the cylindrical Earth Equal-Area Scalable (EASE) grid. ROUGHNESS_COEFF data is in the physical unit of “cm”; and a scale factor of 10 is used to convert into unit-less coefficients. This is a static map based on MODIS IGBP land cover map."; String version "010"; String fileName "h_M03_010.float32"; String creationDate "2022-06-16"; String fullnamepath "/Metadata/Lineage/SURFACE_ROUGHNESS_COEFF"; } Metadata_Lineage_SOIL_TEXTURE_ORGANICCONTENT { String description "Database that specifies the organic content that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid."; String version "UNKNOWN"; String fileName "OrganicContent_M03_006.float32"; String creationDate "2021-06-16"; String fullnamepath "/Metadata/Lineage/SOIL_TEXTURE_ORGANICCONTENT"; } Metadata_Lineage_LANDCOVER_CLASS_TOP3 { String description "Predominant land cover types that appear in each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP). The data set lists multiple predominant land cover types within each 36 km cell, along with an estimated fraction of the cell covered by each predominant type."; String version "004"; String fileName "top3IGBPtype_M36_B20120101_004.uint8"; String creationDate "2014-06-16"; String fullnamepath "/Metadata/Lineage/LANDCOVER_CLASS_TOP3"; } Metadata_Lineage_SOIL_TEXTURE_BULK { String description "Database that specifies representative bulk density that is found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid."; String version "006"; String fileName "bulk_M03_006.float32"; String creationDate "2019-11-07"; String fullnamepath "/Metadata/Lineage/SOIL_TEXTURE_BULK"; } Metadata_Lineage_URBAN_FRACTION { String description "Representative fraction of each of the 3 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid that is covered by Urban Area. These data are based on the Global Urban-Rural Mapping Project (GRUMP) conducted by the Center for International Earth Science Information Network (CIESUN) at Columbia University."; String version "002"; String fileName "UrbanFraction_M03_002.float32"; String creationDate "2013-04-25"; String fullnamepath "/Metadata/Lineage/URBAN_FRACTION"; } Metadata_Lineage_NDVI { String description "Database that specifies a representative value of Normalized Difference Vegetation Index (NDVI) for each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. The dataset was processed by USDA from the MODIS MOD13A2 data product."; String version "002"; String fileName "NDVI_M03_260_002.int16"; String creationDate "2013-04-24"; String fullnamepath "/Metadata/Lineage/NDVI"; } Metadata_Lineage_SNOW { String description "Snow fraction data resampled to 9 km grid spacing on the cylindrical Earth Equal-Area Scalable (EASE) Grid, derived from daily NOAA IMS snow cover data."; String version "001"; String fileName "SnowIMS_M09_P20200916T000000_R17000_001.float32"; String creationDate "2020-09-17"; String fullnamepath "/Metadata/Lineage/SNOW"; } Metadata_Lineage_L1C_TB { String description "The SMAP Level 1C_TB product provides radiometer brightness temperatures in half-orbit granules, gridded at 36 km grid resolution, on 3 EASE2 Earth-fixed grids - 1) Cylindrical projection, 2) Northern polar projection, 3) Southern polar projection."; String version "R19240"; String fileName "SMAP_L1C_TB_30058_D_20200916T194350_R19240_001.h5"; String DOI "doi:10.5067/DV7IX2DQ681Y"; String identifier "L1C_TB"; String creationDate "2024-06-02"; Float32 resolution 36.00000000; String fullnamepath "/Metadata/Lineage/L1C_TB"; } Metadata_Lineage_L2_SM_A { String description "The SMAP Level 1C_TB product provides radiometer brightness temperatures in half-orbit granules, gridded at 36 km grid resolution, on 3 EASE2 Earth-fixed grids - 1) Cylindrical projection, 2) Northern polar projection, 3) Southern polar projection."; String version "R19240"; String fileName "SMAP_L1C_TB_30058_D_20200916T194350_R19240_001.h5"; String DOI "doi:10.5067/DV7IX2DQ681Y"; String identifier "L1C_TB"; String creationDate "2024-06-02"; Float32 resolution 3.000000000; String fullnamepath "/Metadata/Lineage/L2_SM_A"; } Metadata_Lineage_SOIL_TEXTURE_CLAY { String description "Database that specifies representative fractions of clay that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid."; String version "006"; String fileName "clay_M03_006.float32"; String creationDate "2019-11-07"; String fullnamepath "/Metadata/Lineage/SOIL_TEXTURE_CLAY"; } Metadata_Lineage_NDVI_MAX { String description "Database that specifies a representative value of Normalized Difference Vegetation Index (NDVI) for each of the 36 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid. The dataset was processed by USDA from the MODIS MOD13A2 data product."; String version "002"; String fileName "maxNDVI_M03_002.int16"; String creationDate "2013-04-24"; String fullnamepath "/Metadata/Lineage/NDVI_MAX"; } Metadata_Lineage_SOIL_TEXTURE_SAND { String description "Database that specifies representative fractions of sand that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid."; String version "006"; String fileName "sand_M03_006.float32"; String creationDate "2019-11-07"; String fullnamepath "/Metadata/Lineage/SOIL_TEXTURE_SAND"; } Metadata_Lineage_RunConfiguration { String description "A configuration file generated automatically within the SMAP data system that specifies all of the conditions required for each individual run of the Level 2 Passive Soil Moisture Software Processing Software (SPS)."; String version "R19240"; String fileName "SMAP_L2_SM_P_SPS_RunConfig_20240602T171413249.xml"; String creationDate "2024-06-02"; String fullnamepath "/Metadata/Lineage/RunConfiguration"; } Metadata_Lineage_PRECIP { String description "Representative precipitation measures for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 PRECTOT data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC)."; String version "001"; String fileName "PrecipGMAO_M09_P20200916T193000_A_20200916T193000_R17000_001.float32"; String creationDate "2020-09-17"; String fullnamepath "/Metadata/Lineage/PRECIP"; } Metadata_Lineage_DEMSLP { String description "Representative surface slope data for each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. These data are based on the Global Multi-resolution Terrain Elevation 2010 (GMTED2010) data set provided by the United States Geological Service (USGS)."; String version "003"; String fileName "DEMSLP_M03_003.float32"; String creationDate "2014-10-08"; String fullnamepath "/Metadata/Lineage/DEMSLP"; } Metadata_Lineage_LANDCOVER_CLASS { String description "Predominant land cover types that appear in each of the 3 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP)."; String version "003"; String fileName "dominantIGBP_M03_B20120101_003.uint8"; String creationDate "2014-03-31"; String fullnamepath "/Metadata/Lineage/LANDCOVER_CLASS"; } Metadata_Lineage_MetadataConfiguration { String description "A configuration file that specifies the source of the values for each of the data elements that comprise the metadata in the output Level 2 Passive Soil Moisture Product."; String version "R19240"; String fileName "SMAP_L2_SM_P_SPS_MetConfig_L1C_TB.xml"; String creationDate "2024-06-02"; String fullnamepath "/Metadata/Lineage/MetadataConfiguration"; } Metadata_Lineage_LANDCOVER_CLASS_FRACTION_TOP3 { String description "Predominant land cover types that appear in each of the 36 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid. Land cover classes are based on those recommended by the International Geosphere-Biosphere Programme (IGBP). The data set lists multiple predominant land cover types within each 36 km cell, along with an estimated fraction of the cell covered by each predominant type."; String version "004"; String fileName "top3IGBPfrac_M36_B20120101_004.float32"; String creationDate "2014-06-16"; String fullnamepath "/Metadata/Lineage/LANDCOVER_CLASS_FRACTION_TOP3"; } Metadata_Lineage_InputConfiguration { } Metadata_Lineage_InputConfiguration_L2_SM_A { String description "A configuration file that specifies the complete set of elements within the input SMAP L2_SM_A Product that the Level 2 Passive Soil Moisture Science Processing Software (SPS) needs in order to function."; String version "R19240"; String fileName "SMAP_L2_SM_P_SPS_InputConfig_L2_SM_A.xml"; String creationDate "2024-06-02"; String fullnamepath "/Metadata/Lineage/InputConfiguration/L2_SM_A"; } Metadata_Lineage_InputConfiguration_L1C_TB { String description "A configuration file that specifies the complete set of elements within the input SMAP L1C Radiometer Product that the Level 2 Passive Soil Moisture Science Processing Software (SPS) needs in order to function."; String version "R19240"; String fileName "SMAP_L2_SM_P_SPS_InputConfig_L1C_TB.xml"; String creationDate "2024-06-02"; String fullnamepath "/Metadata/Lineage/InputConfiguration/L1C_TB"; } Metadata_Lineage_WATER_FRACTION { String description "Database that specifies representative fractions of water that are found in each of the 3 km cells in the cylindrical Equal-Area Scalable Earth (EASE) Grid."; String version "003"; String fileName "waterfrac_M03_003.float32"; String creationDate "2022-06-01"; String fullnamepath "/Metadata/Lineage/WATER_FRACTION"; } Metadata_Lineage_TSURF { String description "Representative soil temperature for each of the 9 km cells in the cylindrical Earth Equal-Area Scalable (EASE) Grid at approximately the same time that the SMAP radiometer data were acquired. These data are based on the GEOS-5.7.2 TSURF data product generated by the Global Modeling and Assimilation (GMAO) office at the NASA Goddard Space Flight Center (GSFC)."; String version "001", "001", "001"; String fileName "tsurfGMAO_M09_P20200916T190000_A_20200916T190000_R18240_001.float32", "tsurfGMAO_M09_P20200916T200000_A_20200916T200000_R18240_001.float32", "tsurfGMAO_M09_P20200916T210000_A_20200916T210000_R18240_001.float32"; String creationDate "2022-01-19", "2022-01-19", "2022-01-19"; String fullnamepath "/Metadata/Lineage/TSURF"; } Metadata_ProcessStep { Float32 RainFractionLowerThreshold 0.0002777799964; Float32 FrozenGroundFractionLowerThreshold 0.05000000075; String processDescription "Soil moisture retrieved using default retrieval algorithm from brightness temperatures acquired by the SMAP radiometer during the spacecraft descending pass."; String stepDateTime "2024-06-02T17:14:13.249Z"; String documentation "Algorithm Theoretical Basis Document: SMAP L2 and L3 Radiometer Soil Moisture (Passive) Data Products: L2_SM_P & L3_SM_P"; Float32 UrbanFractionUpperThreshold 1.000000000; Float32 VWCLowerThreshold 5.000000000; Float32 IceFractionUpperThreshold 0.5000000000; String epochUTCDateTime "2000-01-01T11:58:55.816Z"; String algorithmVersionID "026"; String softwareTitle "L2_SM_P_SPS"; String algorithmDate "2022-11-15"; Float32 WaterFractionLowerThreshold 0.05000000075; String parameterVersionID "016"; Float32 RainFractionUpperThreshold 0.007060000207; String identifier "L2_SM_P"; String ATBDVersion "Preliminary"; String softwareDate "2014-04-15"; Float32 SnowFractionLowerThreshold 0.05000000075; Float32 MountainousTerrainLowerThreshold 3.000000000; String ATBDDate "2014-03-04"; Float32 WaterFractionUpperThreshold 0.5000000000; String SWVersionID "028"; Float32 FrozenGroundFractionUpperThreshold 0.5000000000; String algorithmDescription "Soil moisture retrieval is obtained using the H-polarized TB and other ancillary data. Other option algorithms exist that use a combinarion of V- and/or H-polarized TBs for soil moisture retrieval."; Float32 UrbanFractionLowerThreshold 0.2500000000; String ATBDTitle "Algorithm Theoretical Basis Document: SMAP L2 and L3 Radiometer Soil Moisture (Passive) Data Products: L2_SM_P & L3_SM_P"; Float32 epochJulianDate 2451545.000; Float32 IceFractionLowerThreshold 0.05000000075; String timeVariableEpoch "J2000"; Float32 MountainousTerrainUpperThreshold 6.000000000; Float32 VWCUpperThreshold 30.00000000; String documentDate "2012-10-26"; String processor "Soil Moisture Active Passive Mission (SMAP) Science Data System (SDS) Operations Facility"; UInt32 algorithmSelection 0; String algorithmTitle "Soil Moisture Active Passive (SMAP) Radiometer processing algorithm"; Float32 SnowFractionUpperThreshold 0.5000000000; String documentVersion "Preliminary"; String fullnamepath "/Metadata/ProcessStep"; } Soil_Moisture_Retrieval_Data { } Soil_Moisture_Retrieval_Data_roughness_coefficient_option3 { String long_name "A unitless value that is indicative of bare soil roughness within the 36 km grid cell. Derived by retrieval of global map of h from DCA."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "roughness_coefficient_option3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/roughness_coefficient_option3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_albedo_option3 { String long_name "Diffuse reflecting power of the Earth's surface within the grid cell, used in MDCA algorithm."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "albedo_option3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/albedo_option3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_static_water_body_fraction { String long_name "The fraction of the area of the 36 km grid cell that is covered by static water based on a Digital Elevation Map."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "static_water_body_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/static_water_body_fraction"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_vegetation_opacity_option1 { String long_name "The measured opacity of the vegetation in the grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 10.00000000; Float32 _FillValue -9999.000000; String origname "vegetation_opacity_option1"; String fullnamepath "/Soil_Moisture_Retrieval_Data/vegetation_opacity_option1"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_boresight_incidence { String units "degrees"; Float32 valid_min 0.000000000; String long_name "Representative angle between the antenna boresight vector and the normal to the Earth's surface for all footprints within the cell."; Float32 valid_max 90.00000000; Float32 _FillValue -9999.000000; String origname "boresight_incidence"; String fullnamepath "/Soil_Moisture_Retrieval_Data/boresight_incidence"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_time_utc { String long_name "Arithmetic average of the acquisition time of all of the brightness temperature footprints with a center that falls within the EASE grid cell in UTC."; String origname "tb_time_utc"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_time_utc"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_vegetation_opacity { String long_name "The measured opacity of the vegetation in the grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 10.00000000; Float32 _FillValue -9999.000000; String origname "vegetation_opacity"; String fullnamepath "/Soil_Moisture_Retrieval_Data/vegetation_opacity"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_qual_flag_h { String long_name "Bit flags that represent the quality of the horizontal polarization brightness temperature within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s, 4096s, 8192s, 16384s, 32768s"; String flag_meanings "Horizontal_polarization_quality Horizontal_polarization_range Horizontal_polarization_RFI_detection Horizontal_polarization_RFI_correction Horizontal_polarization_NEDT Horizontal_polarization_direct_sun_correction Horizontal_polarization_reflected_sun_correction Horizontal_polarization_reflected_moon_correction Horizontal_polarization_direct_galaxy_correction Horizontal_polarization_reflected_galaxy_correction Horizontal_polarization_atmosphere_correction Horizontal_polarization_Faraday_rotation_correction Horizontal_polarization_null_value_bit Horizontal_polarization_water_correction Horizontal_polarization_RFI_check Horizontal_polarization_RFI_clean"; String origname "tb_qual_flag_h"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_qual_flag_h"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_roughness_coefficient { String long_name "A unitless value that is indicative of bare soil roughness within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "roughness_coefficient"; String fullnamepath "/Soil_Moisture_Retrieval_Data/roughness_coefficient"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_vegetation_opacity_option2 { String long_name "The measured opacity of the vegetation in the grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 10.00000000; Float32 _FillValue -9999.000000; String origname "vegetation_opacity_option2"; String fullnamepath "/Soil_Moisture_Retrieval_Data/vegetation_opacity_option2"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_landcover_class { Byte _FillValue 254; String long_name "An enumerated type that specifies the most common landcover class in the grid cell based on the IGBP landcover map."; String origname "landcover_class"; String fullnamepath "/Soil_Moisture_Retrieval_Data/landcover_class"; } Soil_Moisture_Retrieval_Data_EASE_row_index { String long_name "The row index of the 36 km EASE grid cell that contains the associated data."; UInt16 valid_min 0; UInt16 valid_max 405; UInt16 _FillValue 65534; String origname "EASE_row_index"; String fullnamepath "/Soil_Moisture_Retrieval_Data/EASE_row_index"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_h_uncorrected { String units "Kelvin"; Float32 valid_min 0.000000000; String long_name "Horizontal polarization brightness temperature in 36 km Earth grid cell before adjustment for the presence of water bodies."; Float32 valid_max 330.0000000; Float32 _FillValue -9999.000000; String origname "tb_h_uncorrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_h_uncorrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_v_corrected { String units "Kelvin"; Float32 valid_min 0.000000000; String long_name "Vertical polarization brightness temperature in 36 km Earth grid cell after adjustment for the presence of water bodies."; Float32 valid_max 330.0000000; Float32 _FillValue -9999.000000; String origname "tb_v_corrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_v_corrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_4_corrected { String units "Kelvin"; Float32 valid_min -50.00000000; String long_name "Fourth stokes parameter for each 36 km grid cell calculated with an adjustment for the presence of water bodies"; Float32 valid_max 50.00000000; Float32 _FillValue -9999.000000; String origname "tb_4_corrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_4_corrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_longitude_centroid { String units "degrees"; Float32 valid_min -180.0000000; String long_name "Weighted average of the longitude of the center of the brightness temperature footprints that fall within the EASE grid cell."; Float32 valid_max 179.9989929; Float32 _FillValue -9999.000000; String origname "longitude_centroid"; String fullnamepath "/Soil_Moisture_Retrieval_Data/longitude_centroid"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_soil_moisture_option1 { String long_name "Representative soil moisture measurement for the Earth based grid cell."; Float32 valid_min 0.01999999955; Float32 valid_max 0.5000000000; Float32 _FillValue -9999.000000; String units "cm**3/cm**3"; String origname "soil_moisture_option1"; String fullnamepath "/Soil_Moisture_Retrieval_Data/soil_moisture_option1"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_sand_fraction { String long_name "The aggregated sand fraction, as used in the soil moisture retrieval, within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "sand_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/sand_fraction"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_retrieval_qual_flag_option2 { String long_name "Bit flags that record the conditions and the quality of the retrieval algorithms that generate soil moisture within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s"; String flag_meanings "Soil_moisture_retrieval_recommended Soil_moisture_retrieval_attempted Soil_moisture_retrieval_success FT_retrieval_success"; String origname "retrieval_qual_flag_option2"; String fullnamepath "/Soil_Moisture_Retrieval_Data/retrieval_qual_flag_option2"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_longitude { String long_name "Longitude of the center of the Earth based grid cell."; String units "degrees_east"; String origname "longitude"; String fullnamepath "/Soil_Moisture_Retrieval_Data/longitude"; } Soil_Moisture_Retrieval_Data_retrieval_qual_flag_option1 { String long_name "Bit flags that record the conditions and the quality of the retrieval algorithms that generate soil moisture within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s"; String flag_meanings "Soil_moisture_retrieval_recommended Soil_moisture_retrieval_attempted Soil_moisture_retrieval_success FT_retrieval_success"; String origname "retrieval_qual_flag_option1"; String fullnamepath "/Soil_Moisture_Retrieval_Data/retrieval_qual_flag_option1"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_landcover_class_fraction { Float32 valid_min 0.000000000; String long_name "The fraction of the grid cell that contains the most common land cover in that area based on the IGBP landcover map."; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "landcover_class_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/landcover_class_fraction"; } Soil_Moisture_Retrieval_Data_latitude { String long_name "Latitude of the center of the Earth based grid cell."; String units "degrees_north"; String origname "latitude"; String fullnamepath "/Soil_Moisture_Retrieval_Data/latitude"; } Soil_Moisture_Retrieval_Data_retrieval_qual_flag { String long_name "Bit flags that record the conditions and the quality of the retrieval algorithms that generate soil moisture within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s"; String flag_meanings "Soil_moisture_retrieval_recommended Soil_moisture_retrieval_attempted Soil_moisture_retrieval_success FT_retrieval_success"; String origname "retrieval_qual_flag"; String fullnamepath "/Soil_Moisture_Retrieval_Data/retrieval_qual_flag"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_vegetation_water_content { String long_name "Representative measure of water in the vegetation within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 20.00000000; Float32 _FillValue -9999.000000; String units "kg/m**2"; String origname "vegetation_water_content"; String fullnamepath "/Soil_Moisture_Retrieval_Data/vegetation_water_content"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_v_uncorrected { String units "Kelvin"; Float32 valid_min 0.000000000; String long_name "Vertical polarization brightness temperature in 36 km Earth grid cell before adjustment for the presence of water bodies."; Float32 valid_max 330.0000000; Float32 _FillValue -9999.000000; String origname "tb_v_uncorrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_v_uncorrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_soil_moisture_option3 { String long_name "Representative soil moisture measurement for the Earth based grid cell."; Float32 valid_min 0.01999999955; Float32 valid_max 0.5000000000; Float32 _FillValue -9999.000000; String units "cm**3/cm**3"; String origname "soil_moisture_option3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/soil_moisture_option3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_surface_water_fraction_mb_h { String long_name "Gain weighted fraction of static water within the radiometer horizontal polarization brightness temperature antenna pattern in 36 km Earth grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "surface_water_fraction_mb_h"; String fullnamepath "/Soil_Moisture_Retrieval_Data/surface_water_fraction_mb_h"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_soil_moisture { String long_name "Representative soil moisture measurement for the Earth based grid cell."; Float32 valid_min 0.01999999955; Float32 valid_max 0.5000000000; Float32 _FillValue -9999.000000; String units "cm**3/cm**3"; String origname "soil_moisture"; String fullnamepath "/Soil_Moisture_Retrieval_Data/soil_moisture"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_3_corrected { String units "Kelvin"; Float32 valid_min -50.00000000; String long_name "Third stokes parameter for each 36 km grid cell calculated with an adjustment for the presence of water bodies"; Float32 valid_max 50.00000000; Float32 _FillValue -9999.000000; String origname "tb_3_corrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_3_corrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_qual_flag_3 { String long_name "Bit flags that represent the quality of the 3rd Stokes brightness temperature within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 4096s, 16384s, 32768s"; String flag_meanings "3rd_Stokes_quality 3rd_Stokes_range 3rd_Stokes_RFI_detection 3rd_Stokes_RFI_correction 3rd_Stokes_NEDT 3rd_Stokes_direct_sun_correction 3rd_Stokes_reflected_sun_correction 3rd_Stokes_reflected_moon_correction 3rd_Stokes_direct_galaxy_correction 3rd_Stokes_reflected_galaxy_correction 3rd_Stokes_atmosphere_correction 3rd_Stokes_null_value_bit 3rd_Stokes_RFI_check 3rd_Stokes_RFI_clean"; String origname "tb_qual_flag_3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_qual_flag_3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_qual_flag_4 { String long_name "Bit flags that represent the quality of the 4th Stokes brightness temperature within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 4096s, 16384s, 32768s"; String flag_meanings "4th_Stokes_quality 4th_Stokes_range 4th_Stokes_RFI_detection 4th_Stokes_RFI_correction 4th_Stokes_NEDT 4th_Stokes_direct_sun_correction 4th_Stokes_reflected_sun_correction 4th_Stokes_reflected_moon_correction 4th_Stokes_direct_galaxy_correction 4th_Stokes_reflected_galaxy_correction 4th_Stokes_atmosphere_correction 4th_Stokes_null_value_bit 4th_Stokes_RFI_check 4th_Stokes_RFI_clean"; String origname "tb_qual_flag_4"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_qual_flag_4"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_h_corrected { String units "Kelvin"; Float32 valid_min 0.000000000; String long_name "Horizontal polarization brightness temperature in 36 km Earth grid cell after adjustment for the presence of water bodies."; Float32 valid_max 330.0000000; Float32 _FillValue -9999.000000; String origname "tb_h_corrected"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_h_corrected"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_surface_water_fraction_mb_v { String long_name "Gain weighted fraction of static water within the radiometer vertical polarization brightness temperature antenna pattern in 36 km Earth grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "surface_water_fraction_mb_v"; String fullnamepath "/Soil_Moisture_Retrieval_Data/surface_water_fraction_mb_v"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_soil_moisture_option2 { String long_name "Representative soil moisture measurement for the Earth based grid cell."; Float32 valid_min 0.01999999955; Float32 valid_max 0.5000000000; Float32 _FillValue -9999.000000; String units "cm**3/cm**3"; String origname "soil_moisture_option2"; String fullnamepath "/Soil_Moisture_Retrieval_Data/soil_moisture_option2"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_albedo { String long_name "Diffuse reflecting power of the Earth's surface within the grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "albedo"; String fullnamepath "/Soil_Moisture_Retrieval_Data/albedo"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_grid_surface_status { String long_name "Indicates if the grid point lies on land (0) or water (1)."; UInt16 valid_min 0; UInt16 valid_max 1; UInt16 _FillValue 65534; String origname "grid_surface_status"; String fullnamepath "/Soil_Moisture_Retrieval_Data/grid_surface_status"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_time_seconds { String units "seconds"; Float64 valid_min -999999.90000000002; String long_name "Arithmetic average of the acquisition time of all of the brightness temperature footprints with a center that falls within the EASE grid cell in seconds since noon on January 1, 2000 UTC."; Float64 valid_max 940000000.00000000; Float64 _FillValue -9999.0000000000000; String origname "tb_time_seconds"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_time_seconds"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_bulk_density { String long_name "The aggregated bulk density, as used in the soil moisture retrieval, within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 2.650000095; Float32 _FillValue -9999.000000; String origname "bulk_density"; String fullnamepath "/Soil_Moisture_Retrieval_Data/bulk_density"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_soil_moisture_error { String units "cm**3/cm**3"; Float32 valid_min 0.000000000; String long_name "Net uncertainty measure of soil moisture measure for the Earth based grid cell. - Calculation method is TBD."; Float32 valid_max 0.2000000030; Float32 _FillValue -9999.000000; String origname "soil_moisture_error"; String fullnamepath "/Soil_Moisture_Retrieval_Data/soil_moisture_error"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_radar_water_body_fraction { String long_name "The fraction of the area of the 36 km grid cell that is covered by water based on the radar detection algorithm."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "radar_water_body_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/radar_water_body_fraction"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_tb_qual_flag_v { String long_name "Bit flags that represent the quality of the vertical polarization brightness temperature within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s, 4096s, 8192s, 16384s, 32768s"; String flag_meanings "Vertical_polarization_quality Vertical_polarization_range Vertical_polarization_RFI_detection Vertical_polarization_RFI_correction Vertical_polarization_NEDT Vertical_polarization_direct_sun_correction Vertical_polarization_reflected_sun_correction Vertical_polarization_reflected_moon_correction Vertical_polarization_direct_galaxy_correction Vertical_polarization_reflected_galaxy_correction Vertical_polarization_atmosphere_correction Vertical_polarization_Faraday_rotation_correction Vertical_polarization_null_value_bit Vertical_polarization_water_correction Vertical_polarization_RFI_check Vertical_polarization_RFI_clean"; String origname "tb_qual_flag_v"; String fullnamepath "/Soil_Moisture_Retrieval_Data/tb_qual_flag_v"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_latitude_centroid { String units "degrees"; Float32 valid_min -90.00000000; String long_name "Weighted average of the latitude of the center of the brightness temperature footprints that fall within the EASE grid cell."; Float32 valid_max 90.00000000; Float32 _FillValue -9999.000000; String origname "latitude_centroid"; String fullnamepath "/Soil_Moisture_Retrieval_Data/latitude_centroid"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_retrieval_qual_flag_option3 { String long_name "Bit flags that record the conditions and the quality of the retrieval algorithms that generate soil moisture within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s"; String flag_meanings "Soil_moisture_retrieval_recommended Soil_moisture_retrieval_attempted Soil_moisture_retrieval_success FT_retrieval_success"; String origname "retrieval_qual_flag_option3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/retrieval_qual_flag_option3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_EASE_column_index { String long_name "The column index of the 36 km EASE grid cell that contains the associated data."; UInt16 valid_min 0; UInt16 valid_max 963; UInt16 _FillValue 65534; String origname "EASE_column_index"; String fullnamepath "/Soil_Moisture_Retrieval_Data/EASE_column_index"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_organic_content { String long_name "The aggregated organic content, as used in the soil moisture retrieval, within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1000.000000; Float32 _FillValue -9999.000000; String origname "organic_content"; String fullnamepath "/Soil_Moisture_Retrieval_Data/organic_content"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_surface_temperature { String long_name "Temperature at land surface based on GMAO GEOS-5 data."; String units "Kelvins"; Float32 valid_min 0.000000000; Float32 valid_max 350.0000000; Float32 _FillValue -9999.000000; String origname "surface_temperature"; String fullnamepath "/Soil_Moisture_Retrieval_Data/surface_temperature"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_vegetation_opacity_option3 { String long_name "The measured opacity of the vegetation in the grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 10.00000000; Float32 _FillValue -9999.000000; String origname "vegetation_opacity_option3"; String fullnamepath "/Soil_Moisture_Retrieval_Data/vegetation_opacity_option3"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_freeze_thaw_fraction { String long_name "Fraction of the 36 km grid cell that is denoted as frozen. Based on binary flag that specifies freeze thaw conditions in each of the component 3 km grid cells."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "freeze_thaw_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/freeze_thaw_fraction"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_surface_flag { String long_name "Bit flags that record ambient surface conditions within each grid cell"; UInt16 _FillValue 65534; String flag_masks "1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s"; String flag_meanings "36_km_static_water_body 36_km_radar_water_body_detection 36_km_coastal_proximity 36_km_urban_area 36_km_precipitation 36_km_snow_or_ice 36_km_permanent_snow_or_ice 36_km_radiometer_frozen_ground 36_km_model_frozen_ground 36_km_mountainous_terrain 36_km_dense_vegetation 36_km_nadir_region"; String origname "surface_flag"; String fullnamepath "/Soil_Moisture_Retrieval_Data/surface_flag"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } Soil_Moisture_Retrieval_Data_clay_fraction { String long_name "The aggregated clay fraction, as used in the soil moisture retrieval, within the 36 km grid cell."; Float32 valid_min 0.000000000; Float32 valid_max 1.000000000; Float32 _FillValue -9999.000000; String origname "clay_fraction"; String fullnamepath "/Soil_Moisture_Retrieval_Data/clay_fraction"; String coordinates "Soil_Moisture_Retrieval_Data_latitude Soil_Moisture_Retrieval_Data_longitude"; } }