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Xinjiang University (2021)

Characteristics of Surface Energy and Parameters in Gurbantunggut Desert

高佳程

Titre : Characteristics of Surface Energy and Parameters in Gurbantunggut Desert

Auteur : 高佳程

Grade : Master 2021

Université : Xinjiang University

Résumé partiel
The Gurbantunggut Desert is the largest fixed and semi-fixed desert in China.Its underlying surface has the characteristics of stable snow cover in winter,vigorous growth of short-lived plants in spring,and abundant shrubs in summer.The non-uniformity of the underlying surface makes it have special laws in terms of land-air energy and material exchange,and has an important impact on Central Asia and even the global climate.This paper uses the 2017 data from the land-atmosphere interaction observation station in the Kelamei area in the hinterland of the Gurbantunggut Desert to analyze the changes in the surface radiation budget of the desert under different time scales and different weather conditions.The turbulence flux data is used to evaluate the energy balance closure degree and analyze the flux source area.On this basis,the characteristics of the desert surface energy balance and energy distribution change are analyzed.Finally,the surface albedo,surface roughness,and overall transportation are given.The characteristics of surface characteristic parameters such as coefficients provide a scientific basis for the subsequent improvement of the desert land process parameterization scheme and the development of a land surface model suitable for the desert

Mots clés : Gurbantunggut Desert ;Radiation Budget ;Energy Balance ;Surface Characteristc Parameters ;

Présentation (CNKI)

Page publiée le 13 mars 2022