Study on daily surface evapotranspiration with SEBS in Tibet Autonomous Region

Auteur(s) et Affiliation(s)

ZHUO, G.

Tibet Inst. of Plateau Atmospheric and Environmental Science Research, Lhasa, Chine

LA, B.

Tibet Inst. of Plateau Atmospheric and Environmental Science Research, Lhasa, Chine

PUBU, C.

Tibet Inst. of Plateau Atmospheric and Environmental Science Research, Lhasa, Chine

LUO, B.

Tibet Inst. of Plateau Atmospheric and Environmental Science Research, Lhasa, Chine

Description :
This research selects satellite images on January 11, April 6, July 31 and October 19 in 2010 as the representative of winter, spring, summer and autumn respectively, estimates the distribution of daily surface evapotranspiration (ET) based on the surface energy balance system (SEBS) along with potential evapotranspiration (PET) and ET derived from Penman-Monteith (P-M) method. The results are presented and discussed. ET is well positively related to Normalized Difference Vegetation Index (NDVI), minimum, mean, maximum air temperature and sunshine duration in different seasons while negatively related to precipitation, relative humidity and wind speed in summer. These results could benefit the studies on impacts of climate change on hydrological cycle and agriculture irrigation management.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 1, p. 113-128, nombre de pages : 16, Références bibliographiques : 26 ref.

Date :
2014

Editeur :
Pays édition : Chine

Langue :
Anglais