MODIS/Aqua Vegetation Indices 16-Day L3 Global 1km SIN Grid V061

Description

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices 16-Day (MYD13A2) Version 6.1 product provides Vegetation Index (VI) values at a per pixel basis at 1 kilometer (km) spatial resolution. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI), which is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The second vegetation layer is the Enhanced Vegetation Index (EVI), which has improved sensitivity over high biomass regions. The algorithm for this product chooses the best available pixel value from all the acquisitions from the 16 day period. The criteria used is low clouds, low view angle and the highest NDVI/EVI value. Provided along with the vegetation layers and the two quality assurance (QA) layers are reflectance bands 1 (red), 2 (near-infrared), 3 (blue), and 7 (mid-infrared), as well as four observation layers. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61). Improvments/Changes from Previous Version * The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017. * A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).

Resources

Name Format Description Link
5 https://e4ftl01.cr.usgs.gov%2FMOLA%2FMYD13A2.061%2F
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DC2565794049-LPCLOUD
5 https://appeears.earthdatacloud.nasa.gov%2F
5 https://doi.org%2F10.5067%2FMODIS%2FMYD13A2.061
5 https://lpdaac.usgs.gov%2F
5 https://lpdaac.usgs.gov%2Fdocuments%2F621%2FMOD13_User_Guide_V61.pdf
5 https://lpdaac.usgs.gov%2Fdocuments%2F104%2FMOD13_ATBD.pdf
5 https://ladsweb.modaps.eosdis.nasa.gov%2Ffilespec%2FMODIS%2F61%2FMYD13A2
5 https://modis-land.gsfc.nasa.gov%2FMODLAND_val.html
5 https://modis-land.gsfc.nasa.gov%2FValStatus.php%3FProductID%3DMOD13
5 https://opendap.cr.usgs.gov%2Fopendap%2Fhyrax%2FDP131%2FMOLA%2FMYD13A2.061%2Fcontents.html
5 https://landweb.modaps.eosdis.nasa.gov%2F
5 https://data.lpdaac.earthdatacloud.nasa.gov%2Flp-prod-public%2FMYD13A2.061%2FMYD13A2.A2024169.h21v08.061.2024186001605%2FBROWSE.MYD13A2.A2024169.h21v08.061.2024186001605.1.jpg
5 https://www.earthdata.nasa.gov%2Fcenters%2Flp-daac
5 https://search.earthdata.nasa.gov/search?q=C2565794049-LPCLOUD
5 https://appeears.earthdatacloud.nasa.gov/
21 MYD13A2.061 https://doi.org/10.5067/MODIS/MYD13A2.061
5 https://www.earthdata.nasa.gov/centers/lp-daac
33 MOD13_User_Guide_V61.pdf https://lpdaac.usgs.gov/documents/621/MOD13_User_Guide_V61.pdf
33 MOD13_ATBD.pdf https://lpdaac.usgs.gov/documents/104/MOD13_ATBD.pdf
5 https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD13A2
21 MODLAND_val.html https://modis-land.gsfc.nasa.gov/MODLAND_val.html
21 contents.html https://opendap.cr.usgs.gov/opendap/hyrax/DP131/MOLA/MYD13A2.061/contents.html
22 BROWSE.MYD13A2.A2024169.h21v08.061.2024186001605.1.jpg https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/MYD13A2.061/MYD13A2.A2024169.h21v08.061.2024186001605/BROWSE.MYD13A2.A2024169.h21v08.061.2024186001605.1.jpg
5 https://landweb.modaps.eosdis.nasa.gov/
5 https://modis-land.gsfc.nasa.gov/ValStatus.php?ProductID=MOD13
5 https://search.earthdata.nasa.gov/search?q=C2343114343-LPCLOUD
5 MYD09Q1.061 https://doi.org/10.5067/MODIS/MYD09Q1.061
33 MOD09_User_Guide_V61.pdf https://lpdaac.usgs.gov/documents/925/MOD09_User_Guide_V61.pdf
33 MOD09_ATBD.pdf https://lpdaac.usgs.gov/documents/305/MOD09_ATBD.pdf
5 https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD09Q1
5 https://modis-land.gsfc.nasa.gov/ValStatus.php?ProductID=MOD09
21 contents.html https://opendap.cr.usgs.gov/opendap/hyrax/DP137/MOLA/MYD09Q1.061/contents.html
22 BROWSE.MYD09Q1.A2022265.h12v09.061.2022274014232.1.jpg https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/MYD09Q1.061/MYD09Q1.A2022265.h12v09.061.2022274054230/BROWSE.MYD09Q1.A2022265.h12v09.061.2022274014232.1.jpg
5 https://landweb.modaps.eosdis.nasa.gov
22 MODIS_Aqua_L3_SurfaceReflectance_Bands121_8Day.jpg https://worldview.earthdata.nasa.gov/images/layers/previews/geographic/MODIS_Aqua_L3_SurfaceReflectance_Bands121_8Day.jpg
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2343114343-LPCLOUD.iso19115
5 MYD13A2.061 https://doi.org/10.5067/MODIS/MYD13A2.061
5 https://search.earthdata.nasa.gov/search?q=C2565794049-LPCLOUD
33 MOD13_User_Guide_V61.pdf https://lpdaac.usgs.gov/documents/621/MOD13_User_Guide_V61.pdf
33 MOD13_ATBD.pdf https://lpdaac.usgs.gov/documents/104/MOD13_ATBD.pdf
5 https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD13A2
5 https://modis-land.gsfc.nasa.gov/ValStatus.php?ProductID=MOD13
21 contents.html https://opendap.cr.usgs.gov/opendap/hyrax/DP131/MOLA/MYD13A2.061/contents.html
22 BROWSE.MYD13A2.A2024169.h21v08.061.2024186001605.1.jpg https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/MYD13A2.061/MYD13A2.A2024169.h21v08.061.2024186001605/BROWSE.MYD13A2.A2024169.h21v08.061.2024186001605.1.jpg
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2565794049-LPCLOUD.iso19115

Tags

  • earth-science-vegetation-biosphere-vegetation-index
  • earth-science-vegetation-biosphere-vegetation-index-normalized-difference-vegetation-index-ndvi

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