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DOI | 10.1029/2018WR024368 |
A Regional Scale-Invariant Extreme Value Model of Rainfall Intensity-Duration-Area-Frequency Relationships | |
Melese, Victor; Blanchet, Juliette; Creutin, Jean-Dominique | |
2019-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:7页码:5539-5558 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | We propose in this article a regional study of intensity-duration-area-frequency (IDAF) relationships of annual rainfall maxima in southern France. For this we develop a regional extreme value IDAF model based on space-time scale invariance hypotheses. The model allows us to link the statistical distributions of rainfall maxima over any duration and area. It provides in particular an analytical expression of the areal reduction factor, which expresses how the statistical distribution of rainfall maxima changes as the area increases, for any fixed duration. It also provides an analytical expression of areal return level for the continuum of area and duration. The model is applied to radar reanalysis data covering a 13,000-km(2) region of southern France featuring contrasted rainfall regimes (2008-2015). We estimate the IDAF relationships centered on any radar pixel of the region in the range 3-48 hr and 1-2,025 km(2). We obtain in particular a spatial distribution of the areal reduction factor, which allows us to distinguish different rainfall regimes in the region. The overall IDAF model provides also a regional quantification of areal rainfall risk by allowing the computation of rainfall return level maps for any area and duration in the applicable range. Despite inevitable sampling issues due to the shortness of the data sample, we highlight important differences in the spatial distribution of areal rainfall risk depending on the area and duration, illustrating that a comprehensive storm risk evaluation should consider the continuum of area and duration rather than arbitrarily predefined ones. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481444700021 |
WOS关键词 | REDUCTION FACTORS ; STORM RAINFALL ; FLASH-FLOOD ; FRANCE ; EVENT ; DERIVATION ; FRAMEWORK |
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/184843 |
专题 | 资源环境科学 |
作者单位 | Univ Grenoble Alpes, CNRS, IGE, Grenoble, France |
推荐引用方式 GB/T 7714 | Melese, Victor,Blanchet, Juliette,Creutin, Jean-Dominique. A Regional Scale-Invariant Extreme Value Model of Rainfall Intensity-Duration-Area-Frequency Relationships[J]. WATER RESOURCES RESEARCH,2019,55(7):5539-5558. |
APA | Melese, Victor,Blanchet, Juliette,&Creutin, Jean-Dominique.(2019).A Regional Scale-Invariant Extreme Value Model of Rainfall Intensity-Duration-Area-Frequency Relationships.WATER RESOURCES RESEARCH,55(7),5539-5558. |
MLA | Melese, Victor,et al."A Regional Scale-Invariant Extreme Value Model of Rainfall Intensity-Duration-Area-Frequency Relationships".WATER RESOURCES RESEARCH 55.7(2019):5539-5558. |
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