Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019718 |
Optimal adaptation to extreme rainfalls in current and future climate | |
Rosbjerg, Dan | |
2017 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark |
英文摘要 | More intense and frequent rainfalls have increased the number of urban flooding events in recent years, prompting adaptation efforts. Economic optimization is considered an efficient tool to decide on the design level for adaptation. The costs associated with a flooding to the T-year level and the annual capital and operational costs of adapting to this level are described with log-linear relations. The total flooding costs are developed as the expected annual damage of flooding above the T-year level plus the annual capital and operational costs for ensuring no flooding below the T-year level. The value of the return period T that corresponds to the minimum of the sum of these costs will then be the optimal adaptation level. The change in climate, however, is expected to continue in the next century, which calls for expansion of the above model. The change can be expressed in terms of a climate factor (the ratio between the future and the current design level) which is assumed to increase in time. This implies increasing costs of flooding in the future for many places in the world. The optimal adaptation level is found for immediate as well as for delayed adaptation. In these cases, the optimum is determined by considering the net present value of the incurred costs during a sufficiently long time-span. Immediate as well as delayed adaptation is considered. |
英文关键词 | urban flooding rainfall impacts extreme rainfalls climate adaptation economic optimization |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394911200032 |
WOS关键词 | URBAN DRAINAGE SYSTEMS ; FLOOD RISK-ASSESSMENT |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22047 |
专题 | 资源环境科学 |
作者单位 | Tech Univ Denmark, Dept Environm Engn, Lyngby, Denmark |
推荐引用方式 GB/T 7714 | Rosbjerg, Dan. Optimal adaptation to extreme rainfalls in current and future climate[J]. WATER RESOURCES RESEARCH,2017,53(1). |
APA | Rosbjerg, Dan.(2017).Optimal adaptation to extreme rainfalls in current and future climate.WATER RESOURCES RESEARCH,53(1). |
MLA | Rosbjerg, Dan."Optimal adaptation to extreme rainfalls in current and future climate".WATER RESOURCES RESEARCH 53.1(2017). |
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