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Empirical Flood Risk Assessment in Mid·Small Catchments, Upper Geum River

  • Crisisonomy
  • Abbr : KRCEM
  • 2013, 9(2), pp.105-120
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

고아라 1 SungDuk Kim 2 Sang Deog Park 3 Lee, Hyosang 1

1충북대학교
2
3강릉원주대학교

Accredited

ABSTRACT

The estimation of flood frequency in small and mid sized catchments has been remained as difficult problems due to lack of observed data. This study aims to develop the appropriate relationships between observed maximum peak Flood(Qobsmax0211) in the period of 2002-2011 and the Catchment Characteristics(CCs) for predicting stream flood at mid/small sized ungauged catchments. This study presents the relationships between 7 representative CCs(A, ALTBAR, Rf, D, SAAR8110, FARL, and CN2007) and the 16 Qobsmax0211, upper Geum River region. The linear regression model with Jackknife approach is employed using the SPSS program. The results indicate the best relationship(regression model) showing acceptable performances; 5 catchments have the -2%~5% of the flood estimation error and 3 catchments have less than 2% error rate. The validation of the derived relationship (Qobsmax0211-CCs) at the Sangyeo catchment shows an acceptable performance of 0.5% error rate in flood prediction.

Citation status

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