{"id":"modis-09Q1-061","type":"Collection","links":[{"rel":"items","type":"application/geo+json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-09Q1-061/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-09Q1-061"},{"rel":"help","href":"https://lpdaac.usgs.gov/documents/925/MOD09_User_Guide_V61.pdf","title":"MOD09 User Guide"},{"rel":"describedby","href":"https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MOD09Q1","title":"MOD09Q1 file specification"},{"rel":"describedby","href":"https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD09Q1","title":"MYD09Q1 file specification"},{"rel":"cite-as","href":"https://doi.org/10.5067/MODIS/MOD09Q1.061","title":"LP DAAC - MOD09Q1"},{"rel":"cite-as","href":"https://doi.org/10.5067/MODIS/MYD09Q1.061","title":"LP DAAC - MYD09Q1"},{"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-09Q1-061/queryables"},{"rel":"describedby","href":"https://planetarycomputer.microsoft.com/dataset/modis-09Q1-061","title":"Human readable dataset overview and reference","type":"text/html"}],"title":"MODIS Surface Reflectance 8-Day (250m)","assets":{"thumbnail":{"href":"https://ai4edatasetspublicassets.blob.core.windows.net/assets/pc_thumbnails/modis-09Q1-061.png","type":"image/png","roles":["thumbnail"],"title":"MODIS Surface Reflectance 8-Day (250m) thumbnail"},"geoparquet-items":{"href":"abfs://items/modis-09Q1-061.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","Imagery","Global","Reflectance","MOD09Q1","MYD09Q1"],"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 09Q1 Version 6.1 product provides an estimate of the surface spectral reflectance of Moderate Resolution Imaging Spectroradiometer (MODIS) Bands 1 and 2, corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Provided along with the 250 meter (m) surface reflectance bands are two quality layers. For each pixel, a value is selected from all the acquisitions within the 8-day composite period. The criteria for the pixel choice include cloud and solar zenith. When several acquisitions meet the criteria the pixel with the minimum channel 3 (blue) value is used.","item_assets":{"hdf":{"type":"application/x-hdf","roles":["data"],"title":"Source data containing all bands"},"metadata":{"type":"application/xml","roles":["metadata"],"title":"Federal Geographic Data Committee (FGDC) Metadata"},"sur_refl_b01":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","reflectance"],"title":"Surface Reflectance Band 1 (620-670 nm)","eo:bands":[{"name":"sur_refl_b01","common_name":"red","center_wavelength":0.645,"full_width_half_max":0.5}],"raster:bands":[{"scale":0.0001,"data_type":"int16","spatial_resolution":250}]},"sur_refl_b02":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","reflectance"],"title":"Surface Reflectance Band 2 (841-876 nm)","eo:bands":[{"name":"sur_refl_b02","common_name":"nir08","center_wavelength":0.8585,"full_width_half_max":0.35}],"raster:bands":[{"scale":0.0001,"data_type":"int16","spatial_resolution":250}]},"sur_refl_qc_250m":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data"],"title":"Surface Reflectance 250m Band Quality Control flags","raster:bands":[{"data_type":"uint16","spatial_resolution":250}]},"sur_refl_state_250m":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data"],"title":"Surface Reflectance 250m State flags","raster:bands":[{"data_type":"uint16","spatial_resolution":250}]}},"stac_version":"1.0.0","msft:group_id":"modis","msft:container":"modis-061","stac_extensions":["https://stac-extensions.github.io/eo/v1.0.0/schema.json","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/MOD09Q1.061","citation":"Vermote, E. (2021). <i>MODIS/Terra Surface Reflectance 8-Day L3 Global 250m SIN Grid V061</i> [Data set]. NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/MODIS/MOD09Q1.061"},{"doi":"10.5067/MODIS/MYD09Q1.061","citation":"Vermote, E. (2021). <i>MODIS/Aqua Surface Reflectance 8-Day L3 Global 250m SIN Grid V061</i> [Data set]. NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/MODIS/MYD09Q1.061"}],"msft:storage_account":"modiseuwest","msft:short_description":"MODIS Surface Reflectance 8-Day (250m)","msft:region":"westeurope"}