Numerical Simulation Experiment Processes and Local Climate Effect in Forest Underlying Surface

• Published in: Acta meteorologica Sinica Vol. 20; no. 1; pp. 72 - 85
• Main Author: 刘树华 潘英 邓毅 马明敏 姜海梅 蔺洪涛 蒋浩宇 梁福明 刘和平 王建华
• Format: Journal Article
• Language: English
• Published: 2006
• Subjects: 大气边界层; 实验研究; 局部气候效应; 数值模拟; 森林
• ISSN: 0894-0525

Based on the basic principles of atmospheric boundary layer and plant canopy micrometeorology, a forest underlying surface land surface physical process model and a two-dimensional atmospheric boundary layer numerical model are developed and numerical simulation experiments of biosphere and physiological processes of vegetation and soil volumetric water content have been done on land surface processes with local climate effect. The numerical simulation results are in good agreement with realistic observations, which can be used to obtain reasonable simulations for diurnal variations of canopy temperature, air temperature in canopy, ground surface temperature, and temporal and spatial distributions of potential temperature and vertical wind velocity as well as relative humidity and turbulence exchange coefficient over non-homogeneous underlying surfaces. It indicates that the model developed can be used to study the interaction between land surface process and atmospheric boundary layer over various underlying surfaces and can be extended to local climate studies. This work will settle a solid foundation for coupling climate models with the biosphere.