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用变分方法校准数字化天气雷达测定区域降水量基本原理和精度
引用本文:张培昌,戴铁丕,伍志芳,等.用变分方法校准数字化天气雷达测定区域降水量基本原理和精度[J].大气科学,1992,16(2):248-256.
作者姓名:张培昌  戴铁丕  伍志芳  
作者单位:南京气象学院,南京气象学院,南京气象学院,新疆气象科学研究所 南京 210044,南京 210044,南京 210044
摘    要:本文用变分方法校准雷达估算的降水强度和区域降水量,结果表明:经变分校准后,不但能使雷达探测到的结果与雨量计观测到的结果比较接近,而且还能保留没有雨量计站的地方雷达探测到的降水强度变化,其平均相对误差约为20%.

关 键 词:变分法校准    数字化雷达    区域降水量

Principle and Accuracy of Adjusting the Area Precipitation from Digital Weather Radar Through Variational Method
Zhang Peichang,Dai Tiepi,Wu Zhifang and et al.Principle and Accuracy of Adjusting the Area Precipitation from Digital Weather Radar Through Variational Method[J].Chinese Journal of Atmospheric Sciences,1992,16(2):248-256.
Authors:Zhang Peichang  Dai Tiepi  Wu Zhifang and
Abstract:This article deals with a variational method through which the rainfall intensity and the area precipitation detected by a weather radar are adjusted. The result shows that not only the radar measurement agrees with the measurement of rain gauges but also the radar-detected rainfall distribution pattern between the rainfall stations can be retained after the adjustment. The absolute value of the relative errors is on average about 20%.
Keywords:Variational method calibration  Digital radar  Area precipitation Measurement    
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