STAR Joint Polar Satellite System Algorithms & Data Products website National Oceanographic & Atmospheric Administration website NOAA Center for Satellite Applications and Research website
Suomi NPP 7 Day Composite Green Vegetation Fraction, 3/16 to 3/22/2016 - click to enlarge

Suomi NPP 7 Day Composite Green Vegetation Fraction, 3/16 to 3/22/2016 - click to enlarge

Vegetation Index

Team Lead: Yunyue (Bob) Yu

Product Description

Vegetation Indices (VIs) are used to monitor and characterize terrestrial landscapes; VIs are related to absorption of photosynthetically active radiation by vegetation and correlate with biomass or primary productivity.

  • Spectral Vegetation Indices (VIs) are optical measures of vegetation canopy "greenness", a composite property of:
    • Leaf chlorophyll
    • Leaf area
    • Canopy cover
    • Canopy architecture
  • VIs are widely used in studies involving vegetation dynamics:
    • Land surface phenology
    • Climate-vegetation interactions
  • Vis can be used to produce estimates of:
    • Leaf Area Index (LAI)
    • Fraction of Photosynthetically Active Radiation (fPAR)
    • Net Photosynthesis (PSN)
    • Annual Net Primary Production (NPP)
    • Green Vegetation Fraction (GVF)

Product and Data Access

Products and data:

EDR Long Term-Monitoring

Documentation

The IDPS Vegetation Index EDR consists of three vegetation indices:

  1. Normalized Difference Vegetation Index (NDVITOA) from top-of-atmosphere (TOA) reflectances
  2. Enhanced Vegetation Index (EVITOC) from top of canopy (TOC) reflectances.
  3. Normalized Difference Vegetation Index (NDVITOC) from top of canopy (TOC) reflectances

Users

NWS/NCEP, USGS EROS, USDA, NOAA/NESDIS/STAR (VH), VTT Technical Research Centre of Finland, Japan Manned Space Systems Corporation

Enterprise Algorithm Development

  • Develop the Enterprise Algorithm for Vegetation Products to generate: TOA-NDVI, TOC-NDVI, GVF, EVI, EVI2, LAI, fPAR, PSN and NPP
  • Global gridded products in Lat/Lon projection
  • Spatial resolution: 1 km (0.009 degree)
  • Temporal resolution: daily, weekly updated daily, bi-weekly updated daily