{"action":"update","ckan_id":"a4716069-d890-4c00-ba49-408ab2b2fbe8","date_created":"Sat, 07 Mar 2026 19:26:57 GMT","date_finished":"Sat, 07 Mar 2026 19:26:57 GMT","harvest_job_id":"ac0cbb40-7029-4192-aa72-c1b67a582825","harvest_source_id":"e8e2f0de-5222-4b6d-8fa2-b6d5f2a03ffd","id":"0ff9c806-48b1-43b8-aea8-9c28a7b15448","identifier":"10.5067/AMSRU/AU_SI12_NRT_R04","parent_identifier":null,"source_hash":"38ddb652b284351c440b1e4508ddd2c04b86e035fd58fff564161537e14dac13","source_raw":"{\"@type\": \"dcat:Dataset\", \"accessLevel\": \"public\", \"bureauCode\": [\"026:00\"], \"contactPoint\": {\"@type\": \"vcard:Contact\", \"fn\": \"Earthdata Forum\", \"hasEmail\": \"mailto:earthdata-support@nasa.gov\"}, \"description\": \"The Advanced Microwave Scanning Radiometer 2 (AMSR2) instrument on the Global Change Observation Mission - Water 1 (GCOM-W1) provides global passive microwave measurements of terrestrial, oceanic, and atmospheric parameters for the investigation of global water and energy cycles. Near real-time (NRT) products are generated within 3 hours of the last observations in the file, by the Land Atmosphere Near real-time Capability for EOS (LANCE) at the AMSR Science Investigator-led Processing System (AMSR SIPS), which is collocated with the Global Hydrology Resource Center (GHRC) DAAC.  The NRT AMSR2 Unified L3 Daily 12.5 km Brightness Temperature & Sea Ice Concentration, Version 4 uses as input the resampled brightness temperature (Level-1R) data provided by the Japanese Aerospace Exploration Agency (JAXA).  The Version 4 dataset uses the AMSR-U2 product generation algorithm with slight modifications for NRT product generation, same algorithm used to generation the standard, science quality, data that is available at the NSIDC DAAC.  This Level-3 gridded product includes brightness temperatures at 89.0 GHz. Data are mapped to a polar stereographic grid at 12.5 km spatial resolution. Sea ice concentration and brightness temperatures include daily ascending averages, daily descending averages, and daily averages. Data are stored in HDF-EOS5 format and are available via HTTP from the EOSDIS LANCE system at https://lance.nsstc.nasa.gov/amsr2-science/data/level3/seaice12.  If data latency is not a primary concern, please consider using science quality products. Science products are created using the best available ancillary, calibration and ephemeris information. Science quality products are an internally consistent, well-calibrated record of the Earth's geophysical properties to support science. These standard product, science quality, are available at the NSIDC DAAC: https://nsidc.org/\", \"distribution\": [{\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png\", \"format\": \"PNG\", \"mediaType\": \"image/png\", \"title\": \"Data Information (PNG)\"}, {\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_OTTER_472.zip\", \"format\": \"ZIP\", \"mediaType\": \"application/zip\", \"title\": \"Data Information (ZIP)\"}, {\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://data.ornldaac.earthdata.nasa.gov/public/npp/temperate_forest/NPP_OTTER/comp/NPP_OTTER.pdf\", \"format\": \"PDF\", \"mediaType\": \"application/pdf\", \"title\": \"Data Information (PDF)\"}, {\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://doi.org/10.3334/ORNLDAAC/472\", \"format\": \"HTML\", \"mediaType\": \"text/html\", \"title\": \"Data Information (HTML)\"}, {\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://search.earthdata.nasa.gov/search?q=NPP_OTTER_472&ac=true\", \"format\": \"BIN\", \"mediaType\": \"application/octet-stream\", \"title\": \"Data Information (Unknown Format)\"}], \"identifier\": \"10.5067/AMSRU/AU_SI12_NRT_R04\", \"keyword\": [\"earth-science-microwave-spectral-engineering-brightness-temperature\", \"earth-science-sea-ice-cryosphere-sea-ice-concentration\", \"earth-science-sea-ice-oceans-sea-ice-concentration\"], \"landingPage\": \"https://lance.nsstc.nasa.gov/amsr2-science/data/level3/seaice12/R04/hdfeos5/\", \"modified\": \"2026-02-17\", \"programCode\": [\"026:000\"], \"publisher\": {\"@type\": \"org:Organization\", \"name\": \"NASA/MSFC/AMSR SIPS/LANCE\"}, \"spatial\": \"[\\\"CARTESIAN\\\",[{\\\"WestBoundingCoordinate\\\":-180.0,\\\"NorthBoundingCoordinate\\\":89.0,\\\"EastBoundingCoordinate\\\":180.0,\\\"SouthBoundingCoordinate\\\":-89.0}]]\", \"temporal\": \"2020-06-29/2020-06-29\", \"theme\": [\"Earth Science\"], \"title\": \"NRT AMSR2 Unified L3 Daily 12.5 km Brightness Temperature & Sea Ice Concentration V4\"}","source_transform":null,"status":"success"}