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http://dx.doi.org/10.3741/JKWRA.2008.41.2.173

Development of a Monitoring Technique of Dryness and Wetness in Watershed using Climatic Water Budget  

Shin, Sha-Chul (Dept. of Civil Eng., Andong National University)
Hwang, Man-Ha (Korea Institute of Water and Environment, KOWACO)
Ko, Ick-Hwan (Korea Institute of Water and Environment, KOWACO)
Publication Information
Journal of Korea Water Resources Association / v.41, no.2, 2008 , pp. 173-184 More about this Journal
Abstract
Climatic water balance has been applied to obtain quantity of various hydrologic components. Hydrologic information is estimated by comparison between rainfall and evapotranspiration under complex terrain condition. Water deficit is defined as that subtraction of actual supply from climatic demand. The water deficit will occur, when monthly evapotranspiration exceed monthly rainfall. Contrary water surplus is defined as that surplus water after meeting the demand by plants. The water surplus will be occurred when monthly rainfall exceeds monthly evapotranspiration. Finally, the discrete moisture indices were calculated and mapped for the whole watershed to estimate dryness and wetness status using the climatic water balance approach. The result of this study can properly interpret the real drought and non drought. Based upon the results, it can be concluded that the climatic water balance model is useful to monitor water conditions for the watershed.
Keywords
Climatic water balance; Water deficit; Water surplus; Moisture indices;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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