{"type":"Collection","id":"SPL3SMP_E_006","title":"SMAP Enhanced L3 Radiometer Global and Polar Grid Daily 9 km EASE-Grid Soil Moisture V006","description":"This enhanced Level-3 (L3) soil moisture product provides a composite of daily estimates of global land surface conditions retrieved by the Soil Moisture Active Passive (SMAP) radiometer. This product is a daily composite of SMAP Level-2 (L2) soil moisture which is derived from SMAP Level-1C (L1C) interpolated brightness temperatures. Backus-Gilbert optimal interpolation techniques are used to extract information from SMAP antenna temperatures and convert them to brightness temperatures, which are posted to the 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) in a global cylindrical projection. As of 2021, the data are also posted to the Northern Hemisphere EASE-Grid 2.0, an azimuthal equal-area projection.","stac_version":"1.0.0","stac_extensions":["https://stac-extensions.github.io/storage/v2.0.0/schema.json"],"extent":{"spatial":{"bbox":[[-180,-85.044,180,90]]},"temporal":{"interval":[["2015-03-31T00:00:00.000Z",null]]}},"assets":{"browse":{"href":"https://worldview.earthdata.nasa.gov/?v=-196,-79,132,72&l=SMAP_L3_Passive_Enhanced_Night_Soil_Moisture,SMAP_L3_Passive_Enhanced_Day_Soil_Moisture,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor&t=2015-03-31","title":"Download ?v=-196,-79,132,72&l=SMAP_L3_Passive_Enhanced_Night_Soil_Moisture,SMAP_L3_Passive_Enhanced_Day_Soil_Moisture,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor&t=2015-03-31","type":"image/jpeg","roles":["browse"]},"thumbnail":{"href":"https://worldview.earthdata.nasa.gov/?v=-196,-79,132,72&l=SMAP_L3_Passive_Enhanced_Night_Soil_Moisture,SMAP_L3_Passive_Enhanced_Day_Soil_Moisture,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor&t=2015-03-31","title":"Thumbnail","description":"Interactively browse and download global satellite imagery within hours of acquisition.","roles":["thumbnail"]},"nasa":{"href":"https://appeears.earthdatacloud.nasa.gov/","title":"Direct Download [3]","description":"Extract point and area time series from geospatial data via spatial, temporal, and/or parameter subsetting.","roles":["data"]},"https://nsidc":{"href":"https://nsidc.org/data/data-access-tool/SPL3SMP_E/versions/6/","title":"Direct Download [2]","description":"Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script.","roles":["data"]},"readthedocs":{"href":"https://earthaccess.readthedocs.io/en/stable/","title":"Direct Download [4]","description":"A Python library to search and access NASA Earth science data with just a few lines of code","roles":["data"]},"provider_metadata":{"href":"https://doi.org/10.5067/M20OXIZHY3RJ","title":"Provider Metadata","description":"Provides access to data, documentation, tools, citation information, support, and other resources.","roles":["metadata"]},"s3_nsidc_cumulus_prod_protected_SMAP_SPL3SMP_E_006":{"href":"s3://nsidc-cumulus-prod-protected/SMAP/SPL3SMP_E/006","roles":["data"],"title":"nsidc_cumulus_prod_protected_SMAP_SPL3SMP_E_006","storage:refs":["aws"]},"s3_nsidc_cumulus_prod_public_SMAP_SPL3SMP_E_006":{"href":"s3://nsidc-cumulus-prod-public/SMAP/SPL3SMP_E/006","roles":["data"],"title":"nsidc_cumulus_prod_public_SMAP_SPL3SMP_E_006","storage:refs":["aws"]},"s3_credentials":{"href":"https://data.nsidc.earthdatacloud.nasa.gov/s3credentials","title":"S3 credentials API endpoint","roles":["metadata"]},"s3_credentials_documentation":{"href":"https://data.nsidc.earthdatacloud.nasa.gov/s3credentialsREADME","title":"S3 credentials API endpoint documentation","roles":["metadata"]},"metadata":{"href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.xml","title":"CMR XML metadata for C2938664763-NSIDC_CPRD","type":"application/xml","roles":["metadata"]}},"providers":[{"name":"NSIDC_CPRD","roles":["producer"]},{"name":"NASA EOSDIS","roles":["host"]}],"links":[{"rel":"self","href":"https://cmr.earthdata.nasa.gov/stac/NSIDC_CPRD/collections/SPL3SMP_E_006","type":"application/json"},{"rel":"root","href":"https://cmr.earthdata.nasa.gov/stac","type":"application/json","title":"Root Catalog"},{"rel":"parent","href":"https://cmr.earthdata.nasa.gov/stac/NSIDC_CPRD/collections","type":"application/json","title":"Provider Collections"},{"rel":"license","href":"https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance","title":"EOSDIS Data Use Policy","type":"text/html"},{"rel":"about","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.html","title":"HTML metadata for collection","type":"text/html"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.native","title":"Native metadata for collection","type":"application/xml"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.echo10","title":"ECHO10 metadata for collection","type":"application/echo10+xml"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.json","title":"CMR JSON metadata for collection","type":"application/json"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2938664763-NSIDC_CPRD.umm_json","title":"CMR UMM_JSON metadata for collection","type":"application/vnd.nasa.cmr.umm+json"},{"rel":"items","href":"https://cmr.earthdata.nasa.gov/stac/NSIDC_CPRD/collections/SPL3SMP_E_006/items","type":"application/geo+json","title":"Collection Items"}],"license":"CC0-1.0","keywords":["EARTH SCIENCE","SPECTRAL/ENGINEERING","MICROWAVE","BRIGHTNESS TEMPERATURE","LAND SURFACE","SOILS","SOIL MOISTURE/WATER CONTENT","SURFACE SOIL MOISTURE"],"summaries":{"platform":["SMAP"],"instruments":["SMAP L-BAND RADIOMETER"]},"storage:schemes":{"aws":{"type":"aws-s3","platform":"https://{bucket}.s3.{region}.amazonaws.com","bucket":"nsidc-cumulus-prod-protected","region":"us-west-2"}}}