한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제47권12호
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  • Pages.1187-1198
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  • 2014
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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한반도 태풍강우 추출기법 비교 평가

Comparative Assessment of a Method for Extraction of TC-induced Rainfall Affecting the Korean Peninsula

  • 손찬영 (서울시립대학교 토목공학과) ;
  • 권현한 (전북대학교 토목공학과) ;
  • 김종석 (서울시립대학교 토목공학과) ;
  • 문영일 (서울시립대학교 토목공학과)
  • Son, Chan-Young (Department of Civil Engineering, The University of Seoul) ;
  • Kwon, Hyun-Han (Department of Civil Engineering, Chonbuk National University) ;
  • Kim, Jong-Suk (Department of Civil Engineering, The University of Seoul) ;
  • Moon, Young-Il (Department of Civil Engineering, The University of Seoul)
  • 투고 : 2014.09.19
  • 심사 : 2014.11.13
  • 발행 : 2014.12.31
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초록

서북태평양에서 발생하는 태풍은 돌풍 및 강우를 동반하여 한반도뿐만 아니라 동아시아에 상당한 인적 및 물질피해를 야기함에 따라 이에 대한 수방대책 및 치수정책 수립이 시급한 실정이다. 따라서 본 연구에서는 태풍의 경로 및 규모를 고려한 태풍강우량 추출기법을 제안하고 과거 태풍 감시구역을 이용한 태풍강우 추출기법과 비교하여 적용성을 검토하였다. 태풍규모를 결정하기 위해 본 연구에서는 평균 태풍강우량을 산정하였으며, 산정결과 태풍 규모가 반경 700 km일때 평균 태풍강우량이 최대로 나타났다. 또한, 본 연구에서 제안하는 태풍의 경로 및 규모를 이용한 태풍강우량 추출기법은 과거 태풍 감시구역을 이용한 강우량 추출기법의 한계를 보완할 수 있을 것으로 판단되며, 유역별, 행정구역별로 태풍이 야기한 직접적인 강우를 추출할 수 있으며 주관적인 판단에 의해 발생할 수 있는 태풍강우의 과대 및 과소평가의 위험성을 최소화 할 수 있다. 본 연구의 결과는 향후 태풍과 집중호우의 특성분석과 기상인자를 활용한 강우예측, 수공구조물 설계, 산사태, 토석류에 대한 사전 대비책 등에 활용될 수 있을 것으로 기대된다.

Strong winds and heavy rainfall from tropical cyclones (TCs) that occur in the Northwestern Pacific cause significant human and material damage to the Korean peninsula and East Asia. Hence, it is important to establish early warning systems and conduct preparedness activities in advance of a TC. This study suggests a technique to extract the value of uniform TC-induced rainfall considering the TC track and TC size. To validate our technique, we compare it to existing TC rainfall techniques using the spatial domain. To determine the TC size required for extracting TC-induced rainfall, this research analyzed the mean of TC-induced rainfall by TC size (1973-2012). As a result of this analysis, the maximum amount of mean of TC-induced rainfall was found for a TC with a radius of 700 km. Other techniques have limitations which this new technique addresses; it can extract TC-induced rainfall in each administrative area and minimize systematic biases of other extraction methods. The result of this study can be utilized in the preparation of rainfall forecasts, designing hydraulic structures, and predicting landslide and debris flows using TC-induced rainfall and downpours.

키워드

참고문헌

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피인용 문헌

  1. Assessment of Precipitation Characteristics and Synoptic Pattern Associated with Typhoon Affecting the South Korea vol.48, pp.6, 2015, https://doi.org/10.3741/JKWRA.2015.48.6.463
  2. Integrating nonstationary behaviors of typhoon and non-typhoon extreme rainfall events in East Asia vol.7, pp.1, 2017, https://doi.org/10.1038/s41598-017-04629-1
  3. Estimation and Assessment of Future Design Rainfall from Non-stationary Rainfall Frequency Analysis using Separation Method vol.48, pp.6, 2015, https://doi.org/10.3741/JKWRA.2015.48.6.451
  4. A Study on the Time-Periodic Characteristics of Changes in Typhoon Activities and Typhoon-Induced Rainfall over the Korean Peninsula vol.18, pp.7, 2018, https://doi.org/10.9798/KOSHAM.2018.18.7.395