A novel method to convert daytime evapotranspiration into daily evapotranspiration based on variable canopy resistance

被引：20

作者：

Liu, Guoshui ^{[1
,2
]}

Hafeez, Mohsin ^{[2
]}

Liu, Yu ^{[1
]}

Xu, Di ^{[1
]}

Vote, Camilla ^{[2
]}

机构：

[1] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China

[2] Charles Sturt Univ, Int Ctr Water Food Secur IC Water, Wagga Wagga, NSW 2678, Australia

来源：

JOURNAL OF HYDROLOGY | 2012年 / 414卷

关键词：

Evapotranspiration; Canopy resistance; Eddy covariance; Scale; Coleambally Irrigation Area; Australia; PENMAN-MONTEITH EQUATION; EVAPORATIVE FRACTION; EDDY-COVARIANCE; ENERGY-BALANCE; SONIC ANEMOMETER; HEAT; MODEL;

D O I：

10.1016/j.jhydrol.2011.10.042

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A method to convert daytime evapotranspiration (ET) into daily ET based on variable canopy resistance was investigated in this paper. The study was carried out for maize and canola crops grown in Coleambally Irrigation Area which is located in Murray Darling Basin of Australia. Variable canopy resistance was simulated on the basis of Todorovic method. This study has shown that the method performed well to scale daily ET from daytime ET measurements for both crops. In the case of the maize crop, the coefficient of determination (R-2) was 0.979 and the index of agreement (d) was 0.981. In the case of the canola crop, the coefficient of determination (R-2) was 0.936 and the index of agreement (d) was 0.960. Future work will focus on the study of this method to scale daily ET map from satellite-derived daytime ET map. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：278 / 283

页数：6

共 36 条

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[2]

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[3]

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[4]

[Anonymous], 28 INT WAT MAN I