风廓线雷达资料的误差及对祁连山地形云风场监测的初步分析  

Error Analysis of Wind Profiler Radar Data and the Primary Results from the Qilian Mountain Orographic Cloud and Wind Field Observation

作　　者：陈添宇[1] 陈跃[2] 陈乾[1] 

机构地区：[1]甘肃省人工影响天气办公室,甘肃兰州730020 [2]中国气象科学研究院,北京100081

出　　处：《干旱气象》2011年第4期416-422,共7页Journal of Arid Meteorology

基　　金：公益性行业(气象)科研专项"地形云结构和人工增雨(雪)关键技术研究"(GYHY20090624)资助

摘　　要：利用2010年夏季祁连山地形云探测试验期间的风廓线和气球探空资料进行统计分析,以检验资料变化趋势的一致程度和资料的偏离程度。同时,用风廓线资料分析了祁连山区一次明显的降水天气过程的风场演变。结果表明:(1)风廓线雷达探测资料总体上能反映风向的变化,具备监测祁连山地形云近地面风向变化的能力;(2)风廓线雷达探测的风速误差较大,尤其是1 400 m以下误差更大,在使用时应注意。Wind profiler radar（WPR） and radiosonde sounding data obtained in 2011 summer during the period of the Qilian Mountain orographic cloud observation experimentation are used in this paper to inspect the coherence degrees of change trends and departure for these data.The wind field evolvement during a distinct rainfall process in the Qilian Mountain area is analyzed by using the WPR data.The results indicate that the WPR data can represent the wind direction change in general compared to radiosonde sounding;but for wind speed,there were some error especially bellow 1 400 m relative height,more attention should be taken in usages.

关 键 词：风廓线 误差 检验 地形云 探测 

分 类 号：P412.16[天文地球—大气科学及气象学]