VIIRS/NPP Surface Reflectance 8-Day L3 Global 1km SIN Grid V001

Description

The 8-day Visible Infrared Imaging Radiometer Suite (VIIRS) surface reflectance (VNP09A1) Version 1 composite product provides an estimate of land surface reflectance from the Suomi National Polar-Orbiting Partnership (Suomi NPP) VIIRS sensor for nine moderate resolution bands (M1 - M5, M7, M8, M10, M11) at nominal 1 kilometer resolution (~926 meter). The 1 kilometer dataset is derived through resampling the native 750 meter VIIRS resolution in the Level 2 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 that is selected on the basis of high observation coverage, low sensor angle, the absence of clouds or cloud shadow, and aerosol loading. Included in the product along with the nine reflectance bands are day of year, reflectance band quality, control, reflectance state quality assurance, relative azimuth angle, sensor zenith angle, and solar zenith angle layers.

Resources

Name Format Description Link
21 Browse image for Earthdata Search https://e4ftl01.cr.usgs.gov//WORKING/BRWS/Browse.001/2019.12.19/BROWSE.VNP09A1.A2019345.h10v05.001.2019353100716.1.jpg?_ga=2.101102721.1452435467.1577973160-2066674673.1574795892
33 The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. https://lpdaac.usgs.gov/documents/122/VNP09_ATBD.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FVIIRS%2FVNP09A1.001
21 Product Quality Documentation https://landweb.modaps.eosdis.nasa.gov/NPP_QA/
21 LP DAAC Data Pool provides direct access to available products via HTTPS. https://e4ftl01.cr.usgs.gov/VIIRS/VNP09A1.001/
21 USGS EarthExplorer provides users the ability to query, search, and order products available from the LP DAAC. https://earthexplorer.usgs.gov/
21 The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products. https://lpdaac.usgs.gov/
33 The technical information in the Version 1.1 User's Guide enables users to interpret and use the data products. https://lpdaac.usgs.gov/documents/123/VNP09_User_Guide_V1.1.pdf
33 The technical information in the Version 1.6 User's Guide enables users to interpret and use the data products. https://lpdaac.usgs.gov/documents/124/VNP09_User_Guide_V1.6.pdf
21 Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. https://search.earthdata.nasa.gov/search?q=C1373412073-LPDAAC_ECS
21 Further details regarding VIIRS product validation and maturity status are available from VIIRS Land Product Quality Assessment site. https://landweb.modaps.eosdis.nasa.gov/cgi-bin/NPP_QA/NPPpage.cgi?fileName=maturity&subdir=forPage%23
21 OPeNDAP provides direct access to data via HTTPS. https://opendap.cr.usgs.gov/opendap/hyrax/VNP09A1.001/contents.html
21 The Application for Extracting and Exploring Analysis Ready Samples (AρρEEARS) offers a simple and efficient way to perform data access and transformation processes. https://lpdaacsvc.cr.usgs.gov/appeears/
21 The LP DAAC product page provides information on Science Data Set layers and links for user guides, ATBDs, data access, tools, customer support, etc. https://doi.org/10.5067/VIIRS/VNP09A1.001
21 Validation at stage 1 has been achieved for the VIIRS surface reflectance product suite. https://viirsland.gsfc.nasa.gov/Val/LSR_Val.html

Tags

  • land-surface
  • surface-radiative-properties
  • earth-science

Topics

Categories