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http://dx.doi.org/10.5389/KSAE.2010.52.1.019

Estimation of Spatial Evapotranspiration using the Relationship between MODIS NDVI and Morton ET - For Chungjudam Watershed -  

Shin, Hyung-Jin (건국대학교 사회환경시스템공학과 대학원)
Ha, Rim (건국대학교 사회환경시스템공학과 대학원)
Park, Min-Ji (건국대학교 사회환경시스템공학과 대학원)
Kim, Seong-Joon (건국대학교 사회환경시스템공학과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.52, no.1, 2010 , pp. 19-24 More about this Journal
Abstract
The purpose of this study is to estimate monthly Morton evapotranspiration (ET) using normalized difference vegetation index (NDVI) from MODIS satellite images. Morton ET for land surface conditions was evaluated by using daily meteorological data, and the monthly averaged Morton ETs for each land cover were compared with the monthly NDVIs of three years (2000-2002) at Chungjudam Watershed. There was a high correlation between monthly NDVI and Morton ET for the watershed with average coefficient of determination, 0.80. By comparing the MODIS NDVI ET with SLURP Morton ET, the SLURP ET was smaller than the MODIS NDVI ET. This was estimated from the consideration of soil moisture condition for the ET occurrence in the SLURP model, the limited information from the monthly NDVI values, and the errors from the derived regression equations.
Keywords
MODIS; NDVI; Morton CRAE; Correlation; SLURP model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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