{"id":"modis-17A3HGF-061","type":"Collection","links":[{"rel":"items","type":"application/geo+json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-17A3HGF-061/items"},{"rel":"parent","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/"},{"rel":"root","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/"},{"rel":"self","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-17A3HGF-061"},{"rel":"help","href":"https://lpdaac.usgs.gov/documents/972/MOD17_User_Guide_V61.pdf","title":"MOD17 User Guide"},{"rel":"describedby","href":"https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MOD17A3HGF","title":"MOD17A3HGF file specification"},{"rel":"describedby","href":"https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD17A3HGF","title":"MYD17A3HGF file specification"},{"rel":"cite-as","href":"https://doi.org/10.5067/MODIS/MOD17A3HGF.061","title":"LP DAAC - MOD17A3HGF"},{"rel":"cite-as","href":"https://doi.org/10.5067/MODIS/MYD17A3HGF.061","title":"LP DAAC - MYD17A3HGF"},{"rel":"license","href":"https://lpdaac.usgs.gov/data/data-citation-and-policies/","title":"LP DAAC - Data Citation and Policies"},{"rel":"http://www.opengis.net/def/rel/ogc/1.0/queryables","type":"application/schema+json","title":"Queryables","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-17A3HGF-061/queryables"},{"rel":"describedby","href":"https://planetarycomputer.microsoft.com/dataset/modis-17A3HGF-061","title":"Human readable dataset overview and reference","type":"text/html"}],"title":"MODIS Net Primary Production Yearly Gap-Filled","assets":{"thumbnail":{"href":"https://ai4edatasetspublicassets.blob.core.windows.net/assets/pc_thumbnails/modis-17A3HGF-061.png","type":"image/png","roles":["thumbnail"],"title":"MODIS Net Primary Production Yearly Gap-Filled thumbnail"},"geoparquet-items":{"href":"abfs://items/modis-17A3HGF-061.parquet","type":"application/x-parquet","roles":["stac-items"],"title":"GeoParquet STAC items","description":"Snapshot of the collection's STAC items exported to GeoParquet format.","msft:partition_info":{"is_partitioned":true,"partition_frequency":"MS"},"table:storage_options":{"account_name":"pcstacitems"}}},"extent":{"spatial":{"bbox":[[-180,-90,180,90]]},"temporal":{"interval":[["2000-02-18T00:00:00Z",null]]}},"license":"proprietary","keywords":["NASA","MODIS","Satellite","Vegetation","Global","MOD17A3HGF","MYD17A3HGF"],"providers":[{"url":"https://lpdaac.usgs.gov/","name":"NASA LP DAAC at the USGS EROS Center","roles":["producer","licensor","processor"]},{"url":"https://planetarycomputer.microsoft.com","name":"Microsoft","roles":["host","processor"]}],"summaries":{"platform":["aqua","terra"],"instruments":["modis"]},"description":"The Version 6.1 product provides information about annual Net Primary Production (NPP) at 500 meter (m) pixel resolution. Annual Moderate Resolution Imaging Spectroradiometer (MODIS) NPP is derived from the sum of all 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the Gross Primary Productivity (GPP) and the Maintenance Respiration (MR). The product will be generated at the end of each year when the entire yearly 8-day 15A2H is available. Hence, the gap-filled product is the improved 17, which has cleaned the poor-quality inputs from 8-day Leaf Area Index and Fraction of Photosynthetically Active Radiation (LAI/FPAR) based on the Quality Control (QC) label for every pixel. If any LAI/FPAR pixel did not meet the quality screening criteria, its value is determined through linear interpolation. However, users cannot get this product in near-real time because it will be generated only at the end of a given year.","item_assets":{"hdf":{"type":"application/x-hdf","roles":["data"],"title":"Source data containing all bands"},"Gpp_500m":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data"],"title":"Gross Primary Productivity","raster:bands":[{"unit":"kg C/m^2","scale":0.0001,"data_type":"uint16","spatial_resolution":500}]},"Npp_500m":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data"],"title":"Net Primary Productivity","raster:bands":[{"unit":"kg C/m^2","scale":0.0001,"data_type":"int16","spatial_resolution":500}]},"metadata":{"type":"application/xml","roles":["metadata"],"title":"Federal Geographic Data Committee (FGDC) Metadata"},"Npp_QC_500m":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data"],"title":"Quality control","raster:bands":[{"unit":"Percent","data_type":"uint8","spatial_resolution":500}]}},"stac_version":"1.0.0","msft:group_id":"modis","msft:container":"modis-061","stac_extensions":["https://stac-extensions.github.io/raster/v1.0.0/schema.json","https://stac-extensions.github.io/item-assets/v1.0.0/schema.json","https://stac-extensions.github.io/scientific/v1.0.0/schema.json","https://stac-extensions.github.io/table/v1.2.0/schema.json"],"sci:publications":[{"doi":"10.5067/MODIS/MOD17A3HGF.061","citation":"Running, S., &amp; Zhao, M. (2021). <i>MODIS/Terra Net Primary Production Gap-Filled Yearly L4 Global 500 m SIN Grid V061</i> [Data set]. NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/MODIS/MOD17A3HGF.061"},{"doi":"10.5067/MODIS/MYD17A3HGF.061","citation":"Running, S., &amp; Zhao, M. (2021). <i>MODIS/Aqua Net Primary Production Gap-Filled Yearly L4 Global 500m SIN Grid V061</i> [Data set]. NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/MODIS/MYD17A3HGF.061"}],"msft:storage_account":"modiseuwest","msft:short_description":"MODIS Net Primary Production Yearly Gap-Filled","msft:region":"westeurope"}