
Er-Xuan SungNational Taiwan University | NTU · Department of Civil Engineering
Er-Xuan Sung
Bachelor of Engineering
About
9
Publications
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Introduction
Education
September 2011 - June 2014
Publications
Publications (9)
Flood management is a critical issue when facing natural disasters. In current practice, the evaluation of potential threat areas is a multi-disciplinary task. It requires much communication and coordination between institutions such as the meteorological unit and hydrological unit, which makes the process time-consuming and less efficient. This st...
Disaster prevention and response is becoming increasingly concerned not only with disaster mitigation, but also with the integration of hazard-related data. Take flood hazards for example, decision makers require precipitation data and the critical threshold value to judge when to evacuate the residents. Therefore, a system that can provide key inf...
This paper presents a strategy for digital terrain model (DTM) reconstruction using unmanned aerial vehicles (UAV), surveys, and image-based modeling technologies. The construction of a terrain model is considered critical since it can be used to study terrain transitions and conduct flooding simulations and field surveys. Existing methods use posi...
High-intensity rainfall of short duration is triggered by mesoscale convective clouds, and remains difficult to forecast with numerical forecasting models. The Water Resource Agency (WRA) in Taiwan has developed a flood alert system that has defined two levels of flood warning based on predefined rainfall thresholds in each township. The system tra...
水災的預警須在短時間內分析大量且多維度的水情資料,以臺灣水利決策單位-水利署為例,其目前使用之雨量警戒值淹水預警系統,是利用經驗模式定出全臺各鄉鎮市區之警戒值,當即時雨量超過警戒值即發佈淹水警戒,此系統已應用於近年各颱風豪雨事件之應變操作,結果顯示其在實務運作上能達到預警效果,但其對於觀測雨量、淹水警戒值以及地理資訊等不同來源資料之間並沒有做足適當的連結,導致水災應變人員仍浪費時間在水情資訊之間來回比對與查詢,因此本研究以此系統為基礎,開發一個防災資訊儀表板(D^2ashboard),並針對防災資訊的特性設計互動介面,使用三種資料互動模組:(1)資料提示、(2)資訊刷、(3)動態查詢,解決水情資料無法有效傳遞之問題。本研究於民國102年8月潭美及康芮颱風期間,利用防災資訊儀表板實際進行水災預...