CAJ | 학술논문

利用大理国家气候观象台2008年4月至6月的风廓线雷达观测数据,分析风廓线结构在雨季进程的演变特征,发现随着雨季的进程风速逐渐减小,风速振幅逐渐变小,高空自由大气动量下传效应逐渐减弱,高层大气有明显的转变,西风减小,北风增强;大气低层风速日变化雨季前明显,随着雨季的到来逐渐减弱,雨季风速日变化不明显。通过这样的分析对研究边界层风的季节变化具有重要的意义。
이용대리국가기후관상태2008년4월지6월적풍곽선뢰체관측수거,분석풍곽선결구재우계진정적연변특정,발현수착우계적진정풍속축점감소,풍속진폭축점변소,고공자유대기동량하전효응축점감약,고층대기유명현적전변,서풍감소,북풍증강;대기저층풍속일변화우계전명현,수착우계적도래축점감약,우계풍속일변화불명현。통과저양적분석대연구변계층풍적계절변화구유중요적의의。
Using the data from April to June in 2008, which were collected by wind profiler radar in Dali National Climate Observatory, the evolution of wind profile structure characteristics in the rainy season process are ana- lyzed. The results show that with the process of rainy season, the speed and amplitude of wind decreased gradual- ly, the momentum transfer effection of free high-altitude atmosphere weakened gradually, high-altitude atmos- phere direction had a obvious transfer, west wind were decreased while north wind were enhanced; wind in lower layer atmosphere had a obvious diurnal variation before rainy season, then decreased gradually in the beginning of rainy season and had no variation in the process of rainy season. These analysis have a great significance about the seasonal wind changes in boundary layer.