The Assessment of Application of the Distributed Runoff Model in accordance with Rainfall Data Form

강우 자료 형태에 따른 분포형 유출 모형의 적용성 평가

  • 최용준 (충남대학교 토목공학과) ;
  • 김주철 (한국수자원공사 수자원연구원)
  • Received : 2009.08.10
  • Accepted : 2010.02.18
  • Published : 2010.03.30

Abstract

The point rainfall measurements need to be converted to the areal rainfall by means of mean areal precipitation (MAP) estimation methods. And it is not appropriate to evaluate the areal rainfall with constant drift because of the geomorphological influences to rainfall field. Non-stationarity should be applied to the estimation of the areal rainfall, therefore, to consider these effects. Kriging methods with special functional would be a suitable tool in this case. Generalized covariance Kriging method is the most developed one among different Kriging methods. From this point of view this study performs the analysis of its applicability to distributed runoff model. For these purpose, distributed rainfall was created by Thiessen and Kriging method. And distributed rainfall of each method was applied into HyGIS-GRM. The result of applying, Runoff was different in the rainfall data form. Therefore, To apply Kriging method with physical meaning is that it is the useful method as distributed rainfall-runoff model.

Keywords

References

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