摘要
利用2016—2017年科尔沁边界层风廓线雷达每6 min的风场资料评估雷达探测性能,对风廓线雷达数据获取率、风廓线雷达与气球探空探测风的相关性等进行了分析。结果表明:风廓线雷达平均数据获取率随高度的增加先增大后减小,3 000 m以下平均数据获取率都在60%以上。雷达探测数据存在日出后数据缺测率高、午后缺测率低的变化趋势。各层数据获取率与气温和比湿的相关系数分别为0.45和0.35左右。对比风廓线与常规高空探测数据发现:二者v分量的相关系数大于u分量;u分量相关系数>0.4的高度层为400~1 900 m,v分量相关系数>0.6的高度层为500~3 400 m;风廓线雷达与气球探空数据u分量相关系数随风速的增大而减小,从春季到冬季u、v分量相关系数都呈减小趋势。各个季节中风廓线雷达与气球探空数据风速平均偏差春季最小、冬季最大。
The detection performance of wind profiler radar(WPR)was evaluated based on the wind field data of the boundary layer WPR in Horqin,which was conducted every 6 minutes from 2016 to 2017. We analyzed the data acquisition rate of the WPR and the correlation between the WPR and the radiosound wind. The average data acquisition rate of below 3 000 m is above 60%. The radar detection data has a tendency of high data loss rate after sunrise and low loss rate in the afternoon.The correlation coefficient between the data acquisition rate of each layer and the temperature is about 0.45,and the correlation coefficient with the specific humidity is about 0.35. Comparing the WPR with radiosound data,we found that the correlation coefficient of the v component is greater than that of the u component.
作者
舒海龙
马洪波
姚中道
苏雄达
刘菲儿
SHU Hailong;MA Hongbo;YAO Zhongdao;SU Xiongda;LIU Feier(63968 Unit of PLA,Baicheng 137001,China;Jilin Provincial Meteorological Observatory,Changchun 130062,China;63863 Unit of PLA,Baicheng 137001,China;63853 Unit of PLA,Baicheng 137001,China)
出处
《沙漠与绿洲气象》
2021年第6期83-88,共6页
Desert and Oasis Meteorology
关键词
风廓线雷达
高空探测
对比分析
相关性
wind profile radar
radiosound
comparing and analyzing
correlation
