摘要
利用1998年第2次青藏高原大气科学实验(TibetPlateauExperiment,TIPEX)当雄大气边界层加强观测站的湍流观测资料,计算了青藏高原中部地区不稳定大气边界层的高度;结合低空探空获取的温度随高度的探测资料,对比分析了高原边界层演变规律,以及实验站干季、雨季不同时期的高原边界层发展规律异同;讨论了高原边界层厚度受高原地形的影响。得到高原边界层演变规律及高原边界层发展迅速,持续时间长等特点。
The atmospheric boundary layer （ABL） height z, in unstable condition was analyzed using turbulence data from Damxung observational station, which was one of the ABI, observational stations in the second Tibet Plateau Experiment （TIPEX） in 1998. Together with the observational vertical profiles of temperatures, the authors studied the diurnal and seasonal evolution characteristics of the ABL over the Tibet Plateau, analyzed both differences and similarities of the ABL between dry and wet seasons, and explored the terrain influence on the ABL height. The results show that the ABI, over Tibet Plateau has the characteristics of development and lasting over a longer time.
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第3期328-333,共6页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金(40175005
40275006
40233030)
北京市自然科学基金(8052012)资助项目
关键词
青藏高原
大气边界层高度
峰值频率
湍流谱
Tibetan Plateau
atmospherie boundary layer height
peak spectral frequency
turbulent spectral
