Hack's Law and Topographical Properties Analysis of Small River Basin

You, KwangTae; Jun, Hwandon; Lee, Jiho

doi:10.9798/kosham.2016.16.2.173

Cited by 1 publication

(1 citation statement)

References 23 publications

(8 reference statements)

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“…소하천 홍수 예⋅경보시스템은 기상청에서 제공하는 MAPLE 예측강우와 국내실정에 맞게 개발된 수치모의를 통해 산출한 노모그래프를 이용하여 소하천의 수위⋅유량을 예측하는 시스템이다 (You et al, 2016). 노모그래프는 수치해 석을 간단하고 능률적으로 수행하기 위하여 강우량, 지속시간 등과 같은 강우변수와 수위 및 유량 간의 상관관계를 정의한 테이블로, 예⋅경보시스템에 많이 사용되는 방법으로 알려져 있다 (USGS, 1984;Bae et al, 2008;Jang and Kim, 2015;MOIS, 2016).…”

Section: 서 론unclassified

Establishment of a Measured Data-Based Nomograph for Enhancing the Small Stream Flood Warning System

Cheong¹,

Choi²,

Joo³

2018

J. Korean Soc. Hazard Mitig

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The Ministry of the Interior and Safety has developed a small stream flood warning system to reduce damages to small streams, which are estimated to be about 43% of total streams damages. This system, which was developed using a numerically-based nomograph to estimate discharge and depth, was based on rainfall estimates obtained by the McGill Algorithm for Precipitation Nowcasting by Lagrangian Extrapolation (MAPLE) because the small streams exist in unmeasured basins. Before implementing the small stream flood warning system, a study was performed to test its accuracy in estimating measured data obtained from a test basin during 2016 and 2017. Because the results of that study showed that the discharges and depths underestimated the measured data, this study was performed to establish a new nomograph using measured depth and discharge data in the test basin for two rainfall events in 2016. The evaluation results show that the new nomograph correctly represents the measured depth and discharge, and it can be used for enhancing the small stream flood warning system.

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Section: 서 론unclassified