globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016MS000832
Scopus记录号: 2-s2.0-85018464685
论文题名:
New turbulent resistance parameterization for soil evaporation based on a pore-scale model: Impact on surface fluxes in CABLE
作者: Decker M; , Or D; , Pitman A; , Ukkola A
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:1
起始页码: 220
结束页码: 238
语种: 英语
英文关键词: Cables ; Evaporation ; Evapotranspiration ; Heat flux ; Heat resistance ; Moisture ; Parameterization ; Soil moisture ; Surface measurement ; Water treatment ; Empirical functions ; Impact on surfaces ; Land surface modeling ; Land surface models ; Nonlinear dependence ; Sensible heat flux ; Soil evaporations ; Water vapor transfer ; Soils ; error correction ; evaporation ; evapotranspiration ; flux measurement ; land surface ; litter ; parameterization ; pore space ; seasonality ; sensible heat flux ; soil moisture ; turbulence ; water vapor
英文摘要: The Community Atmosphere Biosphere Land Exchange (CABLE) land surface model overestimates evapotranspiration (E) at numerous flux tower sites during boreal spring. The overestimation of E is not eliminated when the nonlinear dependence of soil evaporation on soil moisture or a simple litter layer is introduced into the model. New resistance terms, previously developed from a pore-scale model of soil evaporation, are incorporated into the treatment of under canopy water vapor transfer in CABLE. The new resistance terms reduce the large positive bias in spring time E at multiple flux tower sites and also improve the simulation of daily sensible heat flux. The reduction in the spring E bias allows the soil to retain water into the summer, improving the seasonality of E. The simulation of daily E is largely insensitive to the details of the implementation of the pore model resistance scheme. The more physically based treatment of soil evaporation presented here eliminates the need for empirical functions that reduce evaporation as a function of soil moisture that are included in many land surface models. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75840
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: ARC Centre of Excellence for Climate System Science, Climate Change Research Centre, University of New South Wales, Sydney, Australia; Department of Environmental Systems Science, Soil and Terrestrial Environmental Physics, ETH Zürich, Zürich, Switzerland

Recommended Citation:
Decker M,, Or D,, Pitman A,et al. New turbulent resistance parameterization for soil evaporation based on a pore-scale model: Impact on surface fluxes in CABLE[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(1)
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