气象2012，Vol.38Issue(5)：577-584,8.
风廓线雷达对塔克拉玛干沙漠晴天边界层的探测分析
Radar Wind Profiler Observations of Convective Boundary Layer During Clear-Air Days over Taklimakan Desert
摘要
Abstract
The Urumqi Institute of Desert Meteorology under the China Meteorological Administration（CMA） launched a scientific experiment with the radar wind profiler at the Tazhong Station—an experimental site for atmospheric environment observations in the hinterland of the Taklimakan Desert in July—October 2010.This study uses high temporal resolution data from the experiment to analyze the turbulence development of boundary layer, vertical velocity and atmospheric virtual temperature of typical clear-air day.The results show that：（1） The turbulence refractive index structure constant（C_n~2） can reflect in detail the development of turbulence,and the height of turbulence development bloom area in summer days may be reached at 4000 m.（2） RASS system has good credibility for atmospheric virtual temperature detection,and its near boundary layer is generally in line with the daily temperature variation.（3） The clear-air days in Taklimakan Desert are mainly controlled by east and northeast winds,the wind speed is relatively small and changes within 2.0—6.0 m·s~（-1）.The atmospheric vertical velocity change of the desert hinterland fits in with the static equilibrium theory,the vertical velocity is very weak, generally in the -1.0 to 1.0 m·s~（-1） range fluctuations.关键词
风廓线雷达/晴空/边界层湍流/三维风场/大气虚温Key words
radar wind profiler/clear-air day/turbulence boundary layer/three-dimensional wind field/atmospheric virtual temperature分类
天文与地球科学引用本文复制引用
王敏仲,魏文寿,何清,郑伟,胡文峰..风廓线雷达对塔克拉玛干沙漠晴天边界层的探测分析[J].气象,2012,38(5):577-584,8.基金项目
国家自然科学基金项目 （）
中国沙漠气象科学研究基金课题 （）
公益性行业（气象）科研专项（GYHY201006012）共同资助 （）
