Journal of the Korean Society of Hazard Mitigation (한국방재학회 논문집)
- Volume 1 Issue 3 Serial No. 3
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- Pages.111-122
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- 2001
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- 1738-2424(pISSN)
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- 2287-6723(eISSN)
Reliability Analysis for the Estimation of Frequency-Based Rainfall
확률강우량 산정방법의 신뢰도 분석
- Published : 2001.12.15
Abstract
A reliability analysis is conducted on the process in estimating frequency rainfalls. 39 year of annual maximum data in Seoul station are collected to analyze the reliability in the frequency analysis technique. Frequency analysis is carried out for the nine types of distribution function and three types of parameter estimation method which are currently used in Korea. Reliability Analysis is conducted for the frequency rainfalls determined by 3 types(maximum, median, selected) of method to select the adequate rainfall. Computed rainfalls of each duration and return period are standardized to find the distribution of the frequency rainfall. It shows that the resulting rainfall distribution fairly represents the normal distribution. Coefficient of variation of 0.0456 is computed to be used in estimating the reliability based design rainfall.
본 연구에서는 확률강우량 산정과정에서 발생할 수 있는 불확실성을 파악하기 위하여 신뢰도 분석을 실시하였으며, 이를 위해 서울관측소의 39개년(1961년
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