The method of early drought detection with AVHRR/NOAA data

L. Spivak, A. Terehov, Nadiya R. Muratova, Oleg P. Arkhipkin

2002

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DOI 10.1109/igarss.1997.615863
Data confidence 70 medium
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Abstract

The special Vegetation Temporal Index (VTI) is introduced for estimation of Kazakstan spring temperature-moisture conditions and crop yield forecast. VTI values are defined for each polygons (16/spl times/16 km) from 8 to 22 weekly's NDVI AVHRR/NOAA data (PSQ format). The validation was carried out on 1991, 1992, 1995, 1996 years data. It shown the good correlation between VTI values and corresponding spring wheat crop.