https://scholars.lib.ntu.edu.tw/handle/123456789/86148
標題: | 防洪示範區淹水境況模擬與決策支援系統之研究─子計畫:基隆河流域淹水損害評估模式與相關資料庫建立之研究(II) | 作者: | 蘇明道 | 關鍵字: | 洪災;災害損失評估;危險度;地理資訊;空間資料;Flood;Damage Assessment;Risk;GIS;Spatial data | 公開日期: | 2002 | 出版社: | 臺北市:國立臺灣大學生物環境系統工程學系暨研究所 | 摘要: | 因為地理位置、氣候以及地形之關係,台灣一直是天然災害頻傳之地區,加上近年來台灣工商經濟發達及生活水畢提昇,災害發生時常造成相當嚴重之生命財產之損害,政府常面臨民間要求進行災害防減之工程規劃,但是政府財源有限,無法一次滿足所有防災工程之需求,為能有效利用有限資源,優先處理危險度高之區域,以使防災之投資與其所能達成之效益相擬,因此區域災害危險度之評估是防災決策上相當重要之工作。所謂危險度是指某區域災害損失與其發生機率之乘積,為有效評估災害危險度,必須先能快速準確的估算各種災害此度下之區域損失程度,本計劃乃是在建立洪災之區域淹水損失之模式。由於淹水損害之評估具有地域之特性,基隆河流域近十數年來工商業發展及土地利用變化快速,人口急劇成長,屬於都會型發展地區,且近年來屢傳水息,十分適合作為洪災研討之標的,因此本研究計劃預定以基隆河流域作為研討之區域。 洪災之損害評估涉及大量之地理分布資料,如地形、交通及人口工商業等社會經濟資料,區域性洪災淹水損失之雅估模式需具備空間分析能力,本計劃利用地理資訊系統作為資料建置、管理與分析之工具,建立與洪災研討相關之地理資料庫,並據以建立區域性之洪災災損評估模式。除前述之資料外計畫中並將收集與防減災決策相關之地理資料,如堤防、抽水機、水門等防洪設施,以及相關之避難救難資源,建立成防減災地理資料庫,與相關之研究配合架構完整之淹水境況模擬與洪災防救決策支援系統,供決策者設定各種災害狀況,並利用系統提供之相關損失資訊進行更有效合理之決策。 Taiwan, due to her geographic location, encounters many natural disasters such as earthquakes, typhoon, and flood, etc. every year. These hazards usually cause major loss of assets and casualties from the high density of population and intensive land usage. The government invests huge budget to mitigate the damage from the disasters. The investment of disaster mitigation should be proposition to the risk of the area so that adequate economical efficiency can be maintained. The risk assessment should base on a sound model for regional damage estimation. The estimation of regional flood damage involves a tremendous amount of data and most of them are spatially distributed such as population, traffic network, administration and land use zoning, building types and distribution, etc. This project is to implement the spatial database for regional flood damage estimation using Geographic Information System (GIS) as a spatial data management tool. The Basin of KeeLung River is chosen as pilot area for its high residential density and intense commercial and industrial activities. Related data such as population, commercial and industrial activities, building type and distribution, digital terrain, dike and pumping stations, etc. were collected and integrated into a spatial database. Functions relating damages to inundation depth were established for different types of activities and land use. Regional flood damage can then be assessed spatially. The results from other related co-project such as inundation model were used for computation of the flooding risks. The results are useful for decision support for regional flood damage mitigation planning. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/10732 | 其他識別: | 902625Z002013 | Rights: | 國立臺灣大學生物環境系統工程學系暨研究所 |
顯示於: | 生物環境系統工程學系 |
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902625Z002013.pdf | 10.49 MB | Adobe PDF | 檢視/開啟 |
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