J. Korean Soc. Hazard Mitig Search

CLOSE


Journal of the Korean Society of Hazard Mitigation 2010;10(2):91-102.
Published online April 30, 2010.
호우사상의 대표 이동방향 결정
유철상, 박창열
Decision of the Representative Moving Direction of a Storm Event
Chul-Sang Yoo, Chang-Yeol Park
Abstract
This study analyzed methodologies for determining the representative direction of a storm event. The mean direction, median direction, and modal direction of von Mises distribution were considered as representative directions. In addition, the results with and without considering the storm moving distance were also compared. As results, the modal directions of von Mises distribution were found to explain the directional characteristics of a moving storm much better than other methods. Also, it was found that the storm moving distance has a significant effect on the determination of representative directions of a moving storm, whose uncertainty can also be decreased significantly by considering the moving distance.
Key Words: representative moving direction; von Mises distribution
요지
본 연구에서는 하나의 호우사상을 대상으로 호우이동의 대표방향 결정방법에 대해 분석하였다. 대표방향 설정을 위해 평균방향, 중앙방향, von Mises 확률밀도함수의 주방향을 고려하였다. 추가로 호우 이동거리의 고려 여부에 따른 결과의 차이를 비교하였다. 그 결과, von Mises 확률밀도함수의 주방향이 호우이동의 방향적 특성을 가장 잘 설명할 수 있는 것으로 확인되었다. 아울러 호우의 대표 이동방향은 이동거리에 대한 영향을 크게 받으며, 이동거리를 추가로 고려할 경우 대표방향의 불확실성도 크게 작아질 수 있음을 확인하였다.
핵심용어: 대표 이동방향; von Mises 분포


ABOUT
ARTICLE CATEGORY

Browse all articles >

BROWSE ARTICLES
AUTHOR INFORMATION
Editorial Office
1010 New Bldg., The Korea Science Technology Center, 22 Teheran-ro 7-gil(635-4 Yeoksam-dong), Gangnam-gu, Seoul 06130, Korea
Tel: +82-2-567-6311    Fax: +82-2-567-6313    E-mail: master@kosham.or.kr                

Copyright © 2024 by The Korean Society of Hazard Mitigation.

Developed in M2PI

Close layer
prev next