DOI: 10.1002/2014MS000398
Scopus记录号: 2-s2.0-84945475748
论文题名: Evaluation of simple to complex parameterizations of bare ground evaporation
作者: Jefferson J ; L ; , Maxwell R ; M
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 7, 期: 3 起始页码: 1075
结束页码: 1092
语种: 英语
英文关键词: Control nonlinearities
; Hydrology
; Landforms
; Models
; Parameterization
; Surface measurement
; Wind
; Atmospheric conditions
; Atmospheric stability
; Closed form solutions
; Complexity
; Coupling sensitivity
; Ground evaporations
; Land surface conditions
; Land surface models
; Evaporation
; air temperature
; climatic region
; evaporation
; ground conditions
; hydrological modeling
; land surface
; parameterization
; sensitivity analysis
; wind velocity
英文摘要: Integrated hydrologic models coupled to land surface models link water and energy movement among the subsurface, land surface, and atmosphere. These connections are especially important when estimating a complex, nonlinear process like evaporation. A comprehensive sensitivity study of an evaporation parameterization was conducted using the integrated ParFlow-Common Land Model (PF-CLM). Estimates of ground evaporation using three forms of the same equation, two simplified closed-form solutions and one fully-coupled PF-CLM equation, are systematically compared. The parameterizations vary in complexity, coupling strength, and nonlinearity. Forcing data from three climate regions (alpine, plains, and tropical) are used to compare estimates of bare ground evaporation across all three formulations, thus exploring the process and coupling sensitivity in a novel way. The overall behavior of ground evaporation is consistent throughout the year for all parameterizations, but magnitudes vary with respect to parameterization complexity during energy-limited and water-limited times of the year. A relationship between ground evaporation and ground temperature is shown to exist across all climates and aggregate by pressure, wind speed, and air temperature in the plains climate. Furthermore, results show how increasing complexity through the addition of land surface conditions, atmospheric conditions, and atmospheric stability uniquely compound to influence the relationship between bare ground evaporation and subsurface pressure. Identification of sensitive interactions and unique relationships is necessary to further understand and predict hydrologic processes like evaporation. © 2015. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75990
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: Hydrologic Science and Engineering Program, Colorado School of Mines, Golden, CO, United States
Recommended Citation:
Jefferson J,L,, Maxwell R,et al. Evaluation of simple to complex parameterizations of bare ground evaporation[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,7(3)