不同下垫面资料对京津冀地区天气数值模拟影响的研究

The Study of Different Underlying Surface Data Effects on BTH Region Numerical Simulation

本文通过引入高分辨率的土地利用数据与高分辨率的地形数据,利用WRF模式对京津冀地区进行了多次天气数值模拟,对比分析观测数据与数值模拟结果中的地面温度、相对湿度、风速风向及地表热通量等气象要素,以京津冀地区夏季晴天为例,初步分析了下垫面效应对天气数值模拟的影响。

By embedding land use data and DEM data of high resolution, this paper uses WRF model to simulate the weather of B eijing-Tianjin-Heibei（BTJ） region. Comparing the surface temperature, relative humidity, wind speed, wind direction and ground flux between observation data and numeral simulation result, the underlying surface effect on weather numeral simulation is analyZed by simulating the summer clear sky of BTH region.