Estimation of regional evapotranspiration over Northwest China by using remotely sensed data

Author

Yunhao, Chen ; Xiaobing, Li ; Peijun, Shi

Author_Institution

Inst. of Resources Sci., Beijing Normal Univ., China

Volume

4

fYear

2001

fDate

2001

Firstpage

1997

Abstract

A transpiration estimation model for complete vegetation and an evaporation estimation model for bare soil are presented, based on information of surface parameters. Combined with vegetation coverage data, a model for regional evapotranspiration (ET) estimation over the heterogeneous landscape is derived. This approach provided a reliable estimate of ET over Northwest China, the semiarid and arid region of China. The accuracy of the model for regional ET estimation is checked, which shows a high accuracy result. The features of ET over Northwest China are also discussed with the model

Keywords

evaporation; transpiration; vegetation mapping; NW China; arid region; bare soil; evaporation estimation model; regional evapotranspiration; remotely sensed data; semiarid region; surface parameter information; transpiration estimation model; vegetation coverage; Aerodynamics; Atmosphere; Atmospheric modeling; Crops; Equations; Soil; Solar heating; Stability; Temperature sensors; Vegetation;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.977141

Filename

977141