摘要
为了对国产微波辐射计的性能及应用情况进行评估,选用MWP967KV型微波辐射计的反演产品与同址探空数据进行了对比研究,结果表明温度反演能力优于相对湿度,晴天反演能力优于雨天,液态水含量对反演湿度影响比对温度的影响大。温度和相对湿度与探空数据差异不显著,温度反演数据的误差呈现随高度增大而加大的趋势,相对湿度的反演数据在6.25km以下能力较好,6.25km以上反演能力开始下降。通过分析降水过程数据表明,当Q值和L值达到一定量值,同时L的增加率符合一定数值,降水出现的概率较大。
In order to evaluate the performance of the domestic microwave radiometer,the contrast of the MWP967 KV microwave radiometer data and radiosonde data are researched in this paper.By contrast with the radiosonde data,the results show that the precision of the temperature is better than the humidity.The precision of the sun day is better than the rainy day.The influence of liquid water content on humidity is greater than that on temperature.The analysis of variance showed that the difference between the microwave radiometer data and the radiosonde data are not very significant.The error of the temperature increases with the altitude of the observation.When the height under 6.25 km,the precision of the humidity is better than over this height.By analyze a rainfall process,the results show that the rain will begin when the Qand the Lreach a certain value and the rate of the Lalso accord with a certain condition.
作者
徐爽
李芷霞
陈兴鹃
施海瑞
刘立辉
Xu Shuang;Li Zhixia;Chen Xingjuan;Shi Hairui;Liu Lihui(Xingtai Meteorological Bureau,Xingtai 054000,China;Xingtai Atmospheric Environment Field Scientific Test Base of CMA,Xingtai 054000,China;Jiangxi Ecometeorological Center,Nanchang 330000,China)
出处
《国外电子测量技术》
2020年第8期22-28,共7页
Foreign Electronic Measurement Technology
基金
河北省气象局科研开发项目(16ky19)资助。
关键词
微波辐射计
温度
湿度
误差
microwave radiometer
temperature
humidity
error
