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NDVI relationship to monthly evaporation
Author(s) -
Szilagyi J.,
Rundquist D. C.,
Gosselin D. C.,
Parlange M. B.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl01176
Subject(s) - normalized difference vegetation index , evaporation , precipitation , environmental science , correlation coefficient , potential evaporation , vegetation (pathology) , atmospheric sciences , pan evaporation , geology , meteorology , mathematics , statistics , climate change , geography , oceanography , medicine , pathology
Normalized difference vegetation indices (NDVI), calculated from Landsat‐MSS images, were correlated with monthly total precipitation and estimates of monthly evaporation in a prairie environment. The highest value of the correlation coefficient (r=.80) was obtained between the monthly mean NDVI and estimated evaporation of the preceding month. The de‐seasoned NDVI and evaporation values retained a correlation coefficient of .53 corresponding to half of the originally explained variance (r²=.64) between NDVI and evaporation suggesting that NDVI indices may be useful for estimating regional‐scale evaporation in a water‐limited environment.