DOI: 10.1002/2016JD025936
论文题名: Estimation of land surface evaporation using a generalized nonlinear complementary relationship
作者: Zhang L. ; Cheng L. ; Brutsaert W.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 3 起始页码: 1475
结束页码: 1487
语种: 英语
英文关键词: apparent potential evaporation
; complementary relationship
; eddy flux
; evaporation
Scopus关键词: assessment method
; correlation
; eddy covariance
; evaporation
; flux measurement
; hydrological cycle
; hydrometeorology
; land surface
; nonlinearity
; Penman-Monteith equation
; Australia
英文摘要: Evaporation is a key component of the hydrological cycle and affects regional water resources. Although the physics of evaporation is well understood, its estimation in practice remains a challenge. Among available methods for estimating it, the complementary principle of Bouchet has the potential to provide a practical tool for regional water resources assessment. In this study, the generalized nonlinear formulation of this principle by Brutsaert (2015) was tested against evaporation measurements from four flux stations in Australia under different climatic and vegetation conditions. The method was implemented using meteorological data and Class A pan evaporation measurements. After calibration the estimated daily evaporation values were in good agreement with flux station measurements with a mean correlation coefficient of 0.83 and a bias of 4% on average. More accurate estimates of daily evaporation were obtained when the evaporative demand or apparent potential evaporation was determined from the Penman equation instead of from pan evaporation. The obtained parameter values were found to lie well within the ranges of reported values in the literature. Advantages of the method are that only routine meteorological data are required and that it can be used to estimate long-term evaporation trends. ©2017. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62683
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Christian Laboratory, CSIRO Land and Water, Canberra, ACT, Australia; School of Civil and Environmental Engineering, Cornell University, Ithaca, NY, United States
Recommended Citation:
Zhang L.,Cheng L.,Brutsaert W.. Estimation of land surface evaporation using a generalized nonlinear complementary relationship[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(3)