DOI: 10.2166/wcc.2013.014
论文题名: A hydrological perspective on evaporation: Historical trends and future projections in Britain
作者: Kay A.L. ; Bell V.A. ; Blyth E.M. ; Crooks S.M. ; Davies H.N. ; Reynard N.S.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2013
卷: 4, 期: 3 起始页码: 193
结束页码: 208
语种: 英语
英文关键词: Actual evaporation
; Climate change impacts
; Evapotranspiration
; Hydrology
; Potential evaporation
英文摘要: Evaporation is an important component of the hydrological cycle. Potential evaporation (PE) from a vegetated surface is the amount of water that would be lost to the atmosphere were the supply unlimited; actual evaporation (AE) is a fraction of PE dependent on soil wetness. Many formulae exist for estimating PE from meteorological data. PE is usually a required input, with rainfall, for hydrological modelling, but PE accuracy is generally considered less important than rainfall accuracy for model performance. Few studies investigate historical evaporation trends in Britain, but generally indicate increases. Most studies presenting future PE projections for Britain indicate increased annual PE, but some suggest small decreases in some months. Limited consensus on the best formulae to derive PE projections from climate model data is further complicated by possible changes in plant behaviour (transpiration and growth) under higher carbon dioxide concentrations. Appropriate PE estimation could be particularly important in regions where precipitation and PE are in close balance, but PE uncertainty could be less important than climate model uncertainty for hydrological impacts. Further research is needed into which PE formulae are likely to be most reliable when applied with climate model data, and into climate change and plant feedbacks. © IWA Publishing 2013. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67738
Appears in Collections: 气候减缓与适应
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作者单位: Centre for Ecology and Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, United Kingdom
Recommended Citation:
Kay A.L.,Bell V.A.,Blyth E.M.,et al. A hydrological perspective on evaporation: Historical trends and future projections in Britain[J]. Journal of Water and Climate Change,2013-01-01,4(3)