蔚山地域 中小河川 및 下水道計劃에 必要한 確率降雨强度式의 誘導

Abstract

本 硏究는 蔚山地域의 中小河川 및 都市 下水道計劃에 필요한 確率降雨强度式을 유도한 것이다.

사용한 資料는 蔚山測候所의 自記雨量記錄紙에서 획득한 37년간 (1954-1990)의 特續時間別 年最大系列雨量이다.

降雨量의 頻度解析에는 Gumbel-Chow법, Log-Normal법, Iwai법 등이 사용되었으며,

Gumbel-chow법이 적합하였다.

分析結果 蔚山地域에 가장 적합한 단시간 確率降雨强度式은 Japaness형??이며, 장시간 確率降雨强度式은 ??이었다.

This work presents probabilistic rainfall intensity formula for planning of medium-small size streams and urban sewerage system in Ulsan area.

The analysis was based on the rainfall records for 37years(1954-1990) observed by local meteorological Station using self-recording rain gauge.

For the frequency analysis of rainfalls, Gumbel-Chow Method, Log-Normal Method,

and Iwai Method were used, and among them Gumbel-Chow Methodwas found most

applicable.

As the result of analysis, the most applicable short-time probabilistic rainfall intensity formula was found to be Japaness Type ?? and long-time probabilistic rainfall intensity formula was found to be ?? in Ulsan area.

This work presents probabilistic rainfall intensity formula for planning of medium-small size streams and urban sewerage system in Ulsan area.

The analysis was based on the rainfall records for 37years(1954-1990) observed by local meteorological Station using self-recording rain gauge.

For the frequency analysis of rainfalls, Gumbel-Chow Method, Log-Normal Method,

and Iwai Method were used, and among them Gumbel-Chow Methodwas found most

applicable.

As the result of analysis, the most applicable short-time probabilistic rainfall intensity formula was found to be Japaness Type ?? and long-time probabilistic rainfall intensity formula was found to be ?? in Ulsan area.