摘要
利用中国科学院珠穆朗玛峰大气与环境综合观测研究站2007年7、8月的部分无线电探空资料和风温廓线仪资料,分析了珠峰地区夏季大气边界层结构.结果表明:珠峰地区夏季边界层高度日变化较大,气温日变化明显.下午和傍晚可能因为冰川风的存在,多为偏南风,风力相对较大.珠峰地区风速时空变化较大,特别是下午,在上空大约1800 m到2300 m处风速多为随高度增大,再往上又减小,而且此处多为偏西风和偏东风.这可能与大尺度的大气环流有关,受地形和冰川影响相对小得多.
Using a part of the data from the LAP3000 Wind Profiler and radiosounding data from the Comprehensive Observation and Research Station on Mount Qomolangma, CAS, the structure of atmospheric boundary layer over Mount Qomolangma in summer was analyzed. The results show that： 1）The diurnal variations of boundary layer height and temperature are obvious. 2） The wind from south in the late afternoon seems stronger maybe due to the glacier wind from Mount Qomolangma. 3）The diurnal variation of wind direction is obvious too and the wind becomes stronger along with the height increasing from 1800 m to 2300 m, and more west wind and east wind can be witnessed. These phenomena maybe relate to the large-- scale circulation.
出处
《冰川冻土》
CSCD
北大核心
2008年第4期681-687,共7页
Journal of Glaciology and Geocryology
基金
中国科学院知识创新工程重要项目(KZCX3-SW-231)
国家重点基础研究发展规划项目(2005CB422003)
国家自然科学基金项目(40520140126)资助
关键词
珠穆朗玛峰
大气边界层
冰川风
Mount Qomolangma
atmospheric boundary layer
glacier wind
