Visible Infrared Imaging Radiometer Suite (VIIRS) Global Area Coverage (VGAC), Version 1

Description

The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument represents a significant change from the historical weather satellite observations. For example, there are several differences in observation style, channel, structure, etc. from the Advanced Very High Resolution Radiometer (AVHRR) which flew on low earth orbit satellites since the 1970s. Several longstanding climate data records were developed expressly using the AVHRR instrument. The VIIRS Global Area Coverage (VGAC) dataset is an attempt to more closely bridge the old technology with the new. The VGAC data file provides one orbit of VIIRS observations (22 channels: 14 Reflective Solar Bands; 7 Thermal Emissive Bands and 1 Day/Night Band) that have been degraded in resolution to approximate the AVHRR GAC resolution. Each channel is provided using the same swath that simulates a 3.9 km resolution scan. The moderate resolution VIIRS channels each have the mean value of the radiance in that 3.9 km region. Some of the higher resolution imaging channels (I channels) contain more statistical information, including maximum and minimum radiances, which benefit algorithms like cloud and surface retrievals.

Resources

Name Format Description Link
0 Landing page for the dataset. https://doi.org/10.25921/gsef-pg81
0 Direct download for the dataset. https://www.ncei.noaa.gov/data/viirs-global-area-coverage/access/
0 Direct download for the documentation. https://www.ncei.noaa.gov/data/viirs-global-area-coverage/doc/
0 NCEI home page with information, data access and contact information. https://www.ncei.noaa.gov
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 Overview of the GCOS Essential Climate Variables. https://public.wmo.int/en/programmes/global-climate-observing-system/essential-climate-variables
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 Reprocessed SNPP and NOAA-20 SDRs https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00864

Tags

  • atmospheric - composition - aerosol properties
  • vertical location
  • sea surface
  • visible-infrared imager-radiometer suite
  • land surface
  • doc/noaa/nesdis/star
  • visible wavelengths
  • nesdis
  • terrestrial - land cover
  • joint polar satellite system (jpss)
  • reflectance
  • center for satellite applications and research
  • atmosphere
  • noaa
  • troposhpere
  • infrared radiance
  • atmospheric - upper-air - cloud properties
  • noaa-20
  • global
  • hourly - < daily
  • u.s. department of commerce
  • earth science
  • geographic region
  • terrestrial - snow cover
  • 1 km - < 10 km or approximately .01 degree - < .09 degree
  • suomi-npp
  • viirs
  • doc/noaa/nesdis/ncei
  • oceanic - surface - sea-surface temperature
  • terrestrial - fire disturbance
  • noaa-21
  • terrestrial - albedo
  • atmospheric - surface - air temperature
  • atmospheric radiation
  • infrared wavelengths
  • visible radiance
  • terrestrial - glaciers and ice caps
  • spectral/engineering
  • oceanic - surface - ocean colour
  • national centers for environmental information
  • oceanic - surface - sea ice

Topics

Categories