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Nanjing University of Information Science and Technology (2021)

Characteristics of Surface Energy Balance and Parameterization of Turbulent Fluxes in the Gobi Region of the Western Tibetan Plateau

赵兴炳

Titre : Characteristics of Surface Energy Balance and Parameterization of Turbulent Fluxes in the Gobi Region of the Western Tibetan Plateau

Auteur : 赵兴炳

Grade : Doctoral Dissertation 2021

Université : Nanjing University of Information Science and Technology

Résumé partiel
he distribution and conversion of net radiation by the process of surface energy balance is an important part of surface radiation budget and a critical factor affecting the formation and change of the climate pattern.Great differences in the characteristics of surface energy balance exist at different underlying surfaces.It has great significance to explore the characteristics of surface energy balance of various underlying surfaces.The bulk aerodynamic method is widely applied in weather and climate models,and the dynamic,thermal roughness length and stability parameters are crucial in the bulk aerodynamic method.The land surface processes of the Tibetan Plateau(TP)exerts significant effects on regional and global weather and climate through its thermodynamic and mechanical forcing.Compared to the central and eastern TP,only a few stations exist in the western TP and there are lacks of long-term flux observations and systematic researches on the western part of the TP for a long time due to the harsh natural environment.Based on the long-term observation data at Shiquanhe at Shiquanhe(32.50°N,80.08°E,4279.3 m above sea level)in the western TP,the thesis analyzed the characteristics of surface energy balance,calculated the key parameters of land surface processes,and evaluated the performances of the stability parameterization schemes for simulating the land surface processes by using a numerical model in this area.It could supplement the deficiency of the observation and research on the land air interaction process in the western TP to a certain extent

Mots clés : western Tibetan plateau ;surface energy balance ;land surface process parameters ;stability parameterization schemes ;

Présentation (CNKI)

Page publiée le 18 février 2022