摘要
研究雷达测定地面降水误差表明,其中雷达波束截获零度层亮带是引起测量误差的重要原因之一。本文采用了武汉地区有关零度层亮带和温、压、湿探空资料,用统计方法探讨了降低雷达天线仰角来避免雷达波束截获零度层亮带。
Examinations of the errors in radar measurement of precipi-tation on the ground surface indicate that the zero-layer bright bandintercepted by radar beams is one of the main reasons for the error inthe measurements. By the statistical method based on the zero-layerbright band and sounding data of the temperature, pressure and humidityin the area of Wuhan,a prelimitary study is made on the possibility oflowering the radar elevation so as to avoid the interception of the brightband in the zero layer by radar beams.
出处
《南京气象学院学报》
CSCD
1991年第1期105-112,共8页
Journal of Nanjing Institute of Meteorology
基金
武汉地区75-09-02-28-3课题
关键词
零度层
亮带
大气
雷达
降水量
zero-layer bright band
atmospheric refraction
radar
rainfall
