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[地球物理] American Scientist 本期特別報導臺大團隊近年現時洪水預報Real-time Flood Forecasting研究應用

[地球物理] American Scientist 本期特別報導臺大團隊近年現時洪水預報Real-time Flood Forecasting研究應用


臺大水工試驗所團隊協助水利署第十河川局淡水河洪水預報中心建置之洪水預報系統之執行成果,榮獲本期《American Scientist》雜誌(Vol. 97, No.2, 2009)專文特別報導;專文中從技術層面,簡明講述該研究團隊近年〈現時洪水預報(Real-time Flood Forecasting)〉之研究應用。《American Scientist》是由美國科學研究學會(Sigma Xi, The Scientific Research Society)自1913年開始出版的雙月刊。每一期的《American Scientist》都會選取各領域重要之研究成果來作特別報導,評論的範圍從分子生物至電腦工程,涵括當今科學界各重要領域。每一篇評論皆是由在各領域表現突出的科學家及工程師所撰寫,這些文章皆經過編輯謹慎小心地挑選、編輯,並加附圖表來幫助讀者理解報導內容並增加閱讀上的樂趣,是一本專門報導科學與技術進展,世界知名的雜誌。

台灣於颱風季節經常有的驚人雨量,加上陡峭的地勢,使得台灣經常遭遇洪水困擾。光台北地區就有數條河流匯集,每日這些河流由山區傾瀉入海的水流遭遇瞬息萬變的潮汐,使得各河道的漲退情況很難預料,這導致台北市大型突發性的水患不斷。臺大團隊的研究裡,提出一個電腦運算模型,針對這樣複雜的形成條件進行分析,能精確給出特定地區在未來24小時內的水位變化,預告可能有氾濫之虞的地點。這個研究結果在2001年時曾正確預報出納莉颱風(圖一)時基隆河即將溢堤淹水之時間及地點(見圖二),展現該研究的重要價值。


圖一:2001年納莉颱風襲台

圖二:南湖大橋左岸堤防缺口


深入資訊:
臺大校訊第957期
〈現時洪水預報(Real-time Flood Forecasting)〉 (英文)



[Geophysics] American Scientist Reports Taiwan's Real-time Flood Forecasting Research Applications

The achievement of the flood forcasting system established by the research team from Taida Hydrotech Research Institute and the 10th River Management Office, WRA, is featured in this issue of American Scientist (Vol. 97, No.2, 2009). This report describes from the perspective of techniques the recent applications of the flood forcasting system. American Scientist is published by Sigma Xi, The Scientific Research Society, since 1913. The reports therein are all selected by experts and well-edited with many charts and pictures to better readers' understanding. Each issue also gives outstanding experts' professional comments on the signifcant contemporary research results in a wide range of fields from molecular biology to computer engineering. These features make the journal a famous and professional one.

Taiwan boasts steep terrain and massive rainfall during the typhoon season. In Metropolitan Taipei, home to 10 million people, major tributaries that drain the mountains collide with tidal flows that change direction daily, resulting in every imaginable combination of forward and reverse flow where the channels meet. Spectacular floods thus have often resulted. The flood forcasting system built obtains a computer model of the Taipei watershed that captures this complexity, creating accurate, lifesaving forecasts of the height of the water at specific locations as long as 24 hours in advance and pinpointing areas that would be inundated. The system proved itself in 2001 when Typhoon Nari (picture 1) occurred by identifying the location where and when Keelung River would opvertop (pcture 2).


picture 1: 2001Typhoon Nari occurring

picture 2: the data chart about the spot of overtopping at Nanhu Bridge left bank


Further Information:
National Taiwan University Newsletter Issue 957 (Chinese)
“Real-time Flood Forecasting” in American Scientist



Edited 4 time(s). Last edit at 04/09/2009 10:30AM by gustav.
(編輯記錄)