Suggestion of Simple Method to Estimate Evapotranspiration Using Vegetation and Temperature Information

Autor:	Sha-Chul Shin, Sang-Jin Lee, Man-Ha Hwang, Ick-Hwan Ko
Rok vydání:	2006
Předmět:	Hydrology geography geography.geographical_feature_category Land use Climatology Evapotranspiration Drainage basin Environmental science Vegetation Normalized Difference Vegetation Index
Zdroj:	Journal of Korea Water Resources Association. 39:363-372
ISSN:	1226-6280
DOI:	10.3741/jkwra.2006.39.4.363
Popis:	Many methods have been used to estimate evapotranspiration. However, there is little information about the evapotranspiration from river basins with complicated topographies and variable land use. Remote sensing technique is a probable means to estimate distribution of the evapotranspiration in connection with regional characteristics of vegetation and landuse. The evapotranspiration not only depends on meteorological circumstances but also on the condition of the vegetation. The latter effect can be expressed in terms of NDVI(Normalized Difference Vegetation Index) obtained by NOAA/AVHRR datasets. In this paper, a simple method to estimate evapotranspiration of the Keum river basin is proposed based on NDVI and temperature data.
Databáze:	OpenAIRE
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