A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessment of distributed hydrological drought based on hydrological unit map using SWSI drought index in South Korea
Abstract 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.
Assessment of distributed hydrological drought based on hydrological unit map using SWSI drought index in South Korea
Abstract 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.
Assessment of distributed hydrological drought based on hydrological unit map using SWSI drought index in South Korea
Kwon, Hyung-Joong (author) / Kim, Seong-Joon (author)
KSCE Journal of Civil Engineering ; 14 ; 923-929
2010-10-28
7 pages
Article (Journal)
Electronic Resource
English
Future Hydrological Drought Risk Assessment Based on Nonstationary Joint Drought Management Index
| DOAJ | 2019
Hydrological Drought Analysis in Namhan River Basin, Korea
| British Library Online Contents | 2014
Hydrological Drought: What Consequence?
| British Library Online Contents | 2017