2024-03-19T09:31:12Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/AU_Land.0012023-06-22T18:16:31Zecsnasa_nsidc_daac
AU_Land.001AMSR-E/AMSR2 Unified L2B Half-Orbit 25 km EASE-Grid Surface Soil MoistureJackson, T., S. Chan, R. Bindlish, and E. G. Njoku.AMSR-E/AMSR2 Unified L2B Half-Orbit 25 km EASE-Grid Surface Soil Moisture2018-05-31Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center1false10.5067/IKQ0G7ODMLC7https://doi.org/10.5067/IKQ0G7ODMLC7AU_LandInvestigatorThomasJacksontom.jackson@ars.usda.govBARC-WestBeltsvilleMD20705USAInvestigatorStevenChansteventsz.k.chan@jpl.nasa.gov4800 Oak Grove DrivePasadenaCA91109USAInvestigatorRajatBindlishrajat.bindlish@nasa.gov301-286-87538800 Greenbelt Rd.GreenbeltMD20771USAInvestigatorEniG.Njokueni.g.njoku@jpl.nasa.gov1-818-354-3693PasadenaCA91109USATechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCESPECTRAL/ENGINEERINGINFRARED WAVELENGTHSBRIGHTNESS TEMPERATURE EARTH SCIENCELAND SURFACESOILSSOIL MOISTURE/WATER CONTENT EARTH SCIENCEBIOSPHEREVEGETATIONPLANT CHARACTERISTICSVEGETATION WATER CONTENT Climatology/Meteorology/AtmosphereEnvironmentAE_LandAMSR-E-related projectAMSRU-projectEASE-GridEOSDISEOS PM-1SMAP-related projectAMSR2Advanced Microwave Scanning Radiometer 2GCOM-W1Global Change Observation Mission 1st-Water2012-07-02in work-89.2489.24-180180Geographic RegionGlobal25 km25 km50 minuteEOSEarth Observing SystemEach HDF-EOS file contains core metadata with Quality Assessment (QA) metadata flags that are set by the Science Investigator-led Processing System (SIPS) at the Global Hydrology and Climate Center (GHCC) prior to delivery to NSIDC. A separate metadata file (.xml file extension) is also delivered to NSIDC with the HDF-EOS file; it contains the same information as the core metadata. Three levels of QA are conducted with the AMSR-E Level 2 and 3 products: automatic, operational, and science QA. If a product does not fail QA, it is ready to be used for higher-level-processing, browse generation, active science QA, archive, and distribution. If a granule fails QA, SIPS does not send the granule to NSIDC until it is reprocessed. Level-3 products that fail QA are never delivered to NSIDC (Conway 2002).These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.EnglishNASA/MSFC/AMSR-E SIPSNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAFTP11.9 MBHDF-EOS5Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality Assurance Plan. Huntsville, AL Global Hydrology and Climate Center.
Jackson, T. J., M. H. Cosh, R. Bindlish, P. J. Starks, D. D. Bosch, M. Seyfried, D. C. Goodrich, M. S. Moran, and D. Jinyang. 2010. Validation of Advanced Microwave Scanning Radiometer Soil Moisture Products. Geoscience and Remote Sensing, IEEE Transactions on 48(12):4256-4272.
Jackson, T. J. 1993. Measuring Surface Soil Moisture Using Passive Microwave Remote Sensing. Hydrological Processes 7:139–152.
Japan Aerospace Exploration Agency Earth Observation Research Center. 2013. Data Users’ Manual for the Advanced Microwave Scanning Radiometer 2 (AMSR2) onboard the Global Change Observation Mission 1st - Water "SHIZUKU" (GCOM-W1), 2nd Edition. Tokyo: Japan Aerospace Exploration Agency.
Njoku, E., T. Chan, W. Crosson, and A. Limaye. 2004. Evaluation of the AMSR-E Data Calibration Over Land. Italian Journal of Remote Sensing 29 (4)): 19-37.
Njoku, E.G. and S.K. Chan. 2006. Vegetation and Surface Roughness Effects on AMSR-E Land Observations. Remote Sensing Environment 100(2): 190-199.
The AMSR-E/AMSR2 Unified Level-2B land product provides a long-term data record by combining AMSR-E and AMSR2 data. This data set includes surface soil moisture estimates derived from L1R brightness temperatures using the Normalized Polarization Difference algorithm (NPD) and the Single Channel Algorithm (SCA) along with ancillary information gridded to the 25 km Equal-Area Scalable Earth Grid (EASE-Grid).VIEW RELATED INFORMATIONhttps://doi.org/10.5067/IKQ0G7ODMLC7DocumentationGET DATAhttps://n5eil01u.ecs.nsidc.org/AMSA/AU_Land.001HTTPSGET DATAhttps://search.earthdata.nasa.gov/search?q=AU_Land+V001Earthdata SearchGET RELATED VISUALIZATIONhttps://worldview.earthdata.nasa.gov/?p=geographic&l=BlueMarble_NextGeneration,AMSRU2_Soil_Moisture_SCA_Night,AMSRU2_Soil_Moisture_SCA_Day,AMSRU2_Soil_Moisture_NPD_Night,AMSRU2_Soil_Moisture_NPD_Day,Coastlines&t=2012-07-24WorldviewGET DATAhttps://nsidc.org/data/data-access-tool/AU_Land/versions/1/Data Access ToolUSA/NASACEOS IDN DIFVERSION 9.92018-05-312023-06-22NSIDCVersion SummaryNSIDCMinor VersionNSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:3410NSIDC EASE-Grid GlobalNSIDCLevel of ServiceComprehensiveNSIDCFull Dataset CitationJackson, T., S. Chan, R. Bindlish, and E. G. Njoku. 2018. <i>AMSR-E/AMSR2 Unified L2B Half-Orbit 25 km EASE-Grid Surface Soil Moisture.</i> [indicate subset used]. Boulder, Colorado USA: NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/IKQ0G7ODMLC7">https://doi.org/10.5067/IKQ0G7ODMLC7</a>. 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