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Analysis of Runoff Characteristic Using Rainfall-Runoff Model

  • Crisisonomy
  • Abbr : KRCEM
  • 2014, 10(8), pp.119-134
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

김태우 1 Maeng, Seung-jin 1 최현수 2 김동주 1 장익근 2

1충북대학교
2한국농어촌공사

Accredited

ABSTRACT

Due to the recent unusual changes in weather, extreme floods and droughts are becoming more frequent. Moreover, with the advancements in the social economy and the resulting increase in river and environmental water demand, the utilization conditions of water resources are worsening. In these inadequate circumstances, the runoff-model, which is used for more appropriate water management, takes on different forms according to the different objectives of a low flow season versus a high flow season. Thus, this study analyzes the river basin characteristics of the Geum River basin, divides it into standard unit watershed, selects precipitation observatories, and calculates the Thiessen coefficient and the daily mean rainfall per standard unit watershed. Moreover, for water management during the low flow season, the continuous rainfall-runoff model, the SSARR model, is used. Furthermore, through the use of the model’s sensitivity analysis, parameter calibration, and parameter verification, the runoff characteristics of Yongdam Dam, Daecheong Dam, and Gongju water level station are analyzed.

Citation status

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