Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Analysis of Wetness/Dryness in Geum River Basin based on Climatic Water Balance

기후학적 물수지에 의한 금강유역의 습윤/건조 상태 분석

  • Kim, Joo Cheol (K-water Institute, Korea Water Resources Corporation) ;
  • Lee, Sang Jin (K-water Institute, Korea Water Resources Corporation)
  • 김주철 (한국수자원공사 Kwater연구원) ;
  • 이상진 (한국수자원공사 Kwater연구원)
  • Received : 2009.09.16
  • Accepted : 2010.01.13
  • Published : 2010.03.30
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Abstract

Evapotranspiration and rainfall-runoff are the major components of hydrological cycle and thereby the changes of them can directly affect the wetness/dryness or runoff characteristics of basins. In this study the wetness/dryness in Geum river basin are classified by dint of cumulative probability density function of monthly moisture index and the long term changes of them are analyzed based on climatic water balance concept. The drought events in Geum river basin are selected through evaluation of monthly moisture index and the various hydrological properties of them are investigated in detail. Also the trends of time-series of climatic water balance components are examined by Seasonal Kendall test and the variability of hydrological cycle in Geum river basin during the recent decade is inquired. It is judged that the results of this study can be contributed to establishment of the counter plan against the future drought events as the fundamental information.

Keywords

References

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