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http://dx.doi.org/10.3741/JKWRA.2003.36.2.143

The Improvement of the Rainfall Network over the Seomjinkang Dam Basin  

Lee, Jae-Hyoung (전북대학교 공과대학 토목공학과)
Shu, Seung-Woon (전북대학교 공과대학 토목공학과)
Publication Information
Journal of Korea Water Resources Association / v.36, no.2, 2003 , pp. 143-152 More about this Journal
Abstract
This paper suggests the improvement of the Sumjinkang for the estimation of areal averages of heavy rainfall events based on the optimal network and three existing networks. The problem consists of minimizing an objective function which includes both the accuracy of the areal mean estimation as expressed by the Kriging variance and the economic cost of the data collection. The wellknown geostatistical variance-reduction method is used in combination with SATS which is an algorithm of minimization. At the first stage, two kinds of optimal solutions are obtained by two trade-off coefficients. One of them is a optimal solution, the other is an alternative. At the second stage, a quasi optimal network and a quasi alternative are suggested so that the existing raingages near to the selected optimal raingages are included in the two solutions instead of gages of new gages.
Keywords
trade-off coefficient; Kriging system; SATS; optimal network;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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