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http://dx.doi.org/10.7780/kjrs.2012.28.5.5

Spatial Estimation of Priestley-Taylor Based Potential Evapotranspiration Using MODIS Imageries: the Nak-dong river basin  

Sur, Chanyang (Department of Civil engineering, Hanyang University)
Lee, Jongjin (Water Resources Investigation and Planning Department, K-water)
Park, Jaeyoung (Water Resources Investigation and Planning Department, K-water)
Choi, Minha (Department of Civil engineering, Hanyang University)
Publication Information
Korean Journal of Remote Sensing / v.28, no.5, 2012 , pp. 521-529 More about this Journal
Abstract
The evapotranspiration (ET) is one of the most important factor in the hydrological cycle. In this study, remote sensing based ET algorithm using Moderate Resolution Imaging Spectroradiometer (MODIS) was considered. Then, Priestley-Taylor algorithm was used for estimation of potential evapotranspiration in South Korea, and its spatial distribution was analyzed. Overall applicability between estimated potential evapotranspiration and weather station pan evaporation in Nakdong river basin was represented. The results using small pan showed that correlation coefficient in Pohang and Moonkyung Station was 0.70 and 0.55, respectively. However, the results using large pan showed correlation coefficient in Pohang and Moonkyung Station was 0.62 and 0.52, respectively.
Keywords
Potential Evapotranspiration; Pan Evaporation; MODIS; Priestley-Taylor algorithm; Remote Sensing;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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