Assessment of distributed hydrological drought based on hydrological unit map using SWSI drought index in South Korea

被引：0
作者：
Hyung-Joong Kwon
Seong-Joon Kim
机构：
[1] Texas A&M University,Dept. of Civil Engineering
[2] Konkuk University,Dept. of Civil and Environmental System Engineering
来源：
KSCE Journal of Civil Engineering | 2010年 / 14卷
关键词：
Modified Surface Water Supply Index; hydrological drought; semi-distributed;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This study is to assess the hydrological drought in South Korea in a semi-distributed form using an equation modifying the SWSI (Surface Water Supply Index). Based on the nationwide gauging stations of 61 precipitation, 53 streamflow, 7 dam inflow and 31 groundwater level, South Korea was divided into 32 (sub-regions) and 112 (accounting units) watersheds. The evaluation result was compared with the historical drought records of 2001 which is the driest year in history. The results showed that the monthly-based SWSI value of the 112 watersheds division gives a more reliable representation than that of the 32 watersheds division. In addition, the weekly-based SWSI evaluation accurately showed the continual drought condition while the monthly-based evaluation failed to catch the drought within a month.
引用
收藏
页码：923 / 929
页数：6
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