{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:lpdaac@usgs.gov"}, "description": "The 8-day Visible Infrared Imaging Radiometer Suite (VIIRS) (https://lpdaac.usgs.gov/dataset_discovery/viirs) Surface Reflectance (VNP09H1) Version 1 composite product provides an estimate of land surface reflectance from the Suomi National Polar-orbiting Partnership (Suomi NPP) VIIRS sensor for three imagery bands (I1, I2, I3) at nominal 500 meter resolution (~463 meter). The 500 meter dataset is derived through resampling the native 375 meter VIIRS resolution in the L2 input product. The data are corrected for atmospheric conditions such as the effects of molecular gases, including ozone and water vapor, and for the effects of atmospheric aerosols. Each pixel represents the best possible Level 2G observation during an 8-day period, which is selected on the basis of high observation coverage, low sensor angle, the absence of clouds or cloud shadow, and aerosol loading. The three reflectance bands, this product includes a state quality assurance (QA) layer and a reflectance band quality layer.", "distribution": [{"@type": "dcat:Distribution", "description": "Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.", "downloadURL": "https://search.earthdata.nasa.gov/search?q=C1373412048-LPDAAC_ECS", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "description": "OPeNDAP provides direct access to data via HTTPS.", "downloadURL": "https://opendap.cr.usgs.gov/opendap/hyrax/VNP09H1.001/contents.html", "format": "HTML", "mediaType": "text/html", "title": "Use OPeNDAP to access the dataset's data"}, {"@type": "dcat:Distribution", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.5067%2FVIIRS%2FVNP09H1.001", "format": "HTML", "mediaType": "text/html", "title": "Google Scholar search results"}, {"@type": "dcat:Distribution", "description": "The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.", "downloadURL": "https://lpdaac.usgs.gov/documents/122/VNP09_ATBD.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's algorithm theoretical basis document"}, {"@type": "dcat:Distribution", "description": "The Application for Extracting and Exploring Analysis Ready Samples (A\u03c1\u03c1EEARS) offers a simple and efficient way to perform data access and transformation processes.", "downloadURL": "https://lpdaacsvc.cr.usgs.gov/appeears/", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through APPEEARS"}, {"@type": "dcat:Distribution", "description": "The LP DAAC product page provides information on Science Data Set layers and links for user guides, ATBDs, data access, tools, customer support, etc.", "downloadURL": "https://doi.org/10.5067/VIIRS/VNP09H1.001", "format": "HTML", "mediaType": "text/html", "title": "This dataset's landing page"}, {"@type": "dcat:Distribution", "description": "The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.", "downloadURL": "https://lpdaac.usgs.gov/", "format": "HTML", "mediaType": "text/html", "title": "The dataset's project home page"}, {"@type": "dcat:Distribution", "description": "The technical information in the Version 1.1 User's Guide enables users to interpret and use the data products.", "downloadURL": "https://lpdaac.usgs.gov/documents/123/VNP09_User_Guide_V1.1.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's user's guide"}, {"@type": "dcat:Distribution", "description": "The technical information in the Version 1.6 User's Guide enables users to interpret and use the data products.", "downloadURL": "https://lpdaac.usgs.gov/documents/124/VNP09_User_Guide_V1.6.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's user's guide"}, {"@type": "dcat:Distribution", "description": "USGS EarthExplorer provides users the ability to query, search, and order products available from the LP DAAC.", "downloadURL": "https://earthexplorer.usgs.gov/", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through USGS Earth Explorer"}, {"@type": "dcat:Distribution", "description": "Validation at stage 1 has been achieved for the VIIRS surface reflectance product suite.", "downloadURL": "https://viirsland.gsfc.nasa.gov/Val/LSR_Val.html", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's science data product validation documentation"}], "identifier": "C1373412048-LPDAAC_ECS", "issued": "2017-02-15", "keyword": ["earth-science", "land-surface", "surface-radiative-properties"], "landingPage": "https://doi.org/10.5067/VIIRS/VNP09H1.001", "language": ["en-US"], "modified": "2025-07-17", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "LP DAAC"}, "spatial": "-180.0 -90.0 180.0 90.0", "temporal": "2012-01-17T00:00:00Z/2022-01-17T00:00:00Z", "theme": ["NPP-JPSS", "geospatial"], "title": "VIIRS/NPP Surface Reflectance 8-Day L3 Global 500m SIN Grid V001"}