干旱地区陆面过程耦合模式及应用

基金项目: 国家自然科学基金委、中国科学院社会发展与协调局、沙坡头开放站和中科院力学所非线性连续介质力学开放实验室资助(19832060)

A Coupling Model for Terrestrial Processes in Arid Areas and Its Application

摘要: 本文主要论述干旱地区陆面过程在改善人类生存环境与研究区域经济中的重要地位与研究现状,强调了采用耦合模式的必要性,详细描述了该模式的特点,并将它应用于我国西北腾格里沙漠南缘植物固沙区的水热循环研究,揭示干旱区陆面过程的主要特征,并同现场测试进行了比较。
- 干旱地区 /
- 荒漠化 /
- 陆面过程 /
- 通量参数化 /
- 耦合模式
Abstract: In this paper, the importance of investigation on terrestrical processes in arid areas for mankind's living environment protection and local economics development as well as its present state of the art are elucidated. A coupling model, which evaluates heat, mass, momentum and radiative fluxes in the SPAC system, is developed for simulating microclimate over plant and bare soil. Especially,It is focussed on the details of turbulence transfer. For illustration, numerical simulation of the water-heat exchange processes at Shapotou Observatory, CAS, Ninxia Province are conducted, and the computational results show that the laws of land-surface processes are rather typical in the arid areas.
- coupling model /
- land-atmosphere interaction /
- turbulent model /

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