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Vegetation Health Index

The satellite-based global VH System is designed to monitor, diagnose and predict long- and short-term land environmental conditions and climate-dependent socioeconomic activities. The System is based on satellite observations of the Earth, biophysical theory of vegetation response to the environment, set of algorithms for satellite data processing, interpretation, product development, validation, calibration and applications. Satellite observations are principally represented by the Advance Very High Resolution Radiometer (AVHRR) flown on NOAA polar-orbiting satellites. Data are global with the resolution 4 km and 7-day composite. In addition, the System is using data and products from GOES, METEOSAT, MTSAT and DMSP. VH is a product estimating vegetation health (condition) base on moisture conditions (VCI), thermal conditions (TCI) and their combination (VHI).

VH is used often to estimate crop condition and anticipated yield. If the indices are below 40 indicating different level of vegetation stress, losses of crop and pasture production might be expected; if the indices above 60 (favorable condition) plentiful production might be expected. VH is very useful for an advanced prediction of crop losses.

Data Resources (1)

Additional Info

Field Value
Dataset topic category
  • Environment and natural resources
  • Forest classifications
  • English
Use limitations There are no known issues with access and use constraints.
Dataset reference date August 29, 1982
Temporal extent's start date October 4, 1982
Temporal extent's end date October 4, 2016
  • Cambodia
  • Viet Nam
  • Lao People's Democratic Republic
  • Thailand
  • Myanmar
  • China
Positional Accuracy There are no know issues with accuracy
Logical Consistency There are no known issues with logical consistency
Completeness There are no known issues with completeness
Process Step The dataset was taken from the NOAA STAR website per province in each of the countries.
Responsible party Center for Satellite Applications and Research (STAR) Director - Dr. Alfred M. Powell NOAA/NESDIS/E/RA NOAA Center for Weather and Climate Prediction (NCWCP) 5830 University Research Court College Park, MD 20740
License unspecified
Copyright Yes
Version 1.0
Date uploaded October 3, 2016, 23:54 (UTC)
Date modified October 5, 2016, 11:17 (UTC)