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Temporal and Spatial Variation of Surface Evapotranspiration Based on Remote Sensing in Golmud Region,China |
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PP: 519-524 |
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Author(s) |
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Ai-Di Huo,
Jian-Guo Li,
Guang-Zhi Jiang,
Yun Yang,
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Abstract |
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| Estimation of land surface evapotranspiration(ET) is one of the most difficult tasks in the field of hydrology and water
resources. In this study, ET of the Golmud Region is estimated with an improved surface energy balance system model and the earth
observation remote sensing data. The influence factors of the temporal and spatial distribution of the land surface evaporation quantity
in the Golmud region were analyzed by combining with the real measured data in the geographic information system(GIS). The analysis
result indicates that the annual ET has a single-peak distribution in monthly scale with a well seasonal variation, meanwhile the land
surface ET increases as the groundwater depth decreased from south to north as well as the altitude from high to low in the spatial
distribution. |
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