| DOI: | 10.5194/hess-19-2945-2015
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| Scopus记录号: | 2-s2.0-84933567882
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| 论文题名: | Projected changes in US rainfall erosivity |
| 作者: | Biasutti M; , Seager R
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| 刊名: | Hydrology and Earth System Sciences
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| ISSN: | 10275606
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| 出版年: | 2015
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| 卷: | 19, 期:6 | | 起始页码: | 2945
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| 结束页码: | 2961
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| 语种: | 英语
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| Scopus关键词: | Climate models
; Climate simulation
; Coupled Model Intercomparison Project
; Daily rainfall
; Functional relationship
; Monthly rainfalls
; Quantitative assessments
; Rainfall erosivity
; Scaling relationships
; Rain
; climate modeling
; diurnal variation
; erosivity
; precipitation intensity
; quantitative analysis
; rainfall
; uncertainty analysis
; Texas
; United States
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| 英文摘要: | Downscaled rainfall projections from 21 climate models from the CMIP5 (Coupled Model Intercomparison Project Phase 5) archive are used to estimate future changes in rainfall erosivity in the continental Unites States. To estimate erosivity from rainfall in the absence of sub-hourly data, we have used both daily rainfall values and the modified Fournier index-which is based on monthly rainfall accumulation-and derived the scaling relationship between rainfall and erosivity from observational estimates of both. The expectation of overall increase in erosivity is confirmed by these calculations, but a quantitative assessment is marred by large uncertainties. Specifically, the uncertainty in the method of estimation of erosivity is more consequential than that deriving from the spread in climate simulations and leads to changes of uncertain sign in parts of the southwest and Texas. We suggest that progress can be made by establishing a more reliable functional relationship between daily rainfall and erosivity. © 2015 Author(s). |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/78481
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Lamont Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY, United States
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| Recommended Citation: | |
Biasutti M,, Seager R. Projected changes in US rainfall erosivity[J]. Hydrology and Earth System Sciences,2015-01-01,19(6)
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