SWAP 지수를 활용한 한강유역의 가뭄-홍수 급변사상 특성 분석
DC Field | Value | Language |
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dc.contributor.author | Son, Ho Jun | - |
dc.contributor.author | Lee, Jin-Young | - |
dc.contributor.author | Yoo, Jiyoung | - |
dc.contributor.author | Kim, Tae-Woong | - |
dc.date.accessioned | 2023-08-07T07:31:02Z | - |
dc.date.available | 2023-08-07T07:31:02Z | - |
dc.date.issued | 2021-11 | - |
dc.identifier.issn | 2799-8746 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113706 | - |
dc.description.abstract | 가뭄-홍수 급변사상은 가뭄과 홍수가 중첩된 사상으로, 생태계뿐만 아니라 산업과 농업 그리고 사회경제까지 큰 영향을 미치기 때문에 가뭄이나 홍수의 개별 사상보다 대처하기 어렵다. 하지만 국내의 가뭄-홍수 급변사상에 대한 연구는 부족한 실정이다. 본 연구에서는 표준가중평균강수(SWAP) 지수를 사용하여 가뭄-홍수 급변사상의 특성들을 분석하였다. SWAP 지수는 일강수량에 시간 가중치를 적용한 가중평균강수(WAP) 지수를 표준화 것으로, 한강유역의 중권역별 면적평균강수량(1966-2018년)을 사용해 산정하였다. SWAP 지수는 가뭄·홍수의 단일사상 분석 뿐 아니라 가뭄-홍수 급변사상을 분석하는데 용이하고, 시간의 척도 측면에서도 유연하게 사용할 수 있다. 또한, 심각도 K를 사용해 가뭄-홍수 급변사상의 상대적인 심각도를 지역별로 분석할 수 있다. 연구 결과, 한강유역 30개의 중권역 중 20개의 중권역이 시간이 지남에 따라 가뭄-홍수 급변사상의 심각도가 상승하는 추세가 확인되었고, 중권역별 가뭄-홍수 급변사상의 발생 빈도와 심각도 등을 고려하여 위험지역을 확인할 수 있었다. 예를 들어, 한강유역 내 가뭄-홍수 급변사상으로 인한 위험지역은 남한강상류(#1001) 유역으로 나타났다. | - |
dc.description.abstract | A drought-flood abrupt alternation event is an overlapping extreme event that is harder to cope with than a single event of drought and flood. It is also expected to have a significant adverse impact on ecosystems as well as industries and agriculture. However, there has not yet been a comprehensive study that characterizes the drought-flood abrupt alternation events in Korea. Therefore, this study employed a standard weighted average precipitation (SWAP) index, which is efficient to analyze not only individual events of drought and flood but also the drought-flood abrupt alternation events considering various time scales. The SWAP standardized the weighted average precipitation (WAP) by adding temporal weights to the precipitation. The SWAP indices were calculated for middle-sized watersheds of the Han River basin using the area average precipitation during 1966 and 2018. The severity K was calculated to represent the relative regional severity considering normal rainfalls, and used to characterize the drought-flood abrupt alternation in the study areas. The results indicated that 20 of the 30 middle-sized watersheds in the Han River basin were confirmed to increase the severity of drought-flood abrupt alternation over time. Considering the frequency and severity of drought-flood abrupt alternation events in each watershed, vulnerable areas and dangerous areas due to drought-flood abrupt alternation were identified, for example, the Upstream Namhan River (#1001). © 2021 Korea Water Resources Association. | - |
dc.format.extent | 8 | - |
dc.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.publisher | Korea Water Resources Association | - |
dc.title | SWAP 지수를 활용한 한강유역의 가뭄-홍수 급변사상 특성 분석 | - |
dc.title.alternative | Characteristics of drought-flood abrupt alternation events using SWAP index in the Han River basin | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.doi | 10.3741/JKWRA.2021.54.11.925 | - |
dc.identifier.scopusid | 2-s2.0-85159275592 | - |
dc.identifier.bibliographicCitation | Journal of Korea Water Resources Association, v.54, no.11, pp 925 - 932 | - |
dc.citation.title | Journal of Korea Water Resources Association | - |
dc.citation.volume | 54 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 925 | - |
dc.citation.endPage | 932 | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002779123 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Drought-flood abrupt alternation events | - |
dc.subject.keywordAuthor | Precipitation | - |
dc.subject.keywordAuthor | Severity | - |
dc.subject.keywordAuthor | Standard weighted average precipitation index | - |
dc.identifier.url | https://jkwra.or.kr/articles/article/5bVW/#Information | - |
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