基于无线电探空的武汉大气加权平均温度模型研究

The study of the model about mean vapor pressure-weighted temperature of the atmosphere based on radiosonde

以武汉地区为例,本文推导无线电探空推导的大气加权平均温度模型并对其可靠性进行检验。采用武汉无线电探空数据推算武汉地区的大气加权平均温度计算模型,以此模型计算GPS可降水量,通过与无线电探空结果比较来检验该模型的精确度。在WHDH站GPS可降水量与无线电探空的比较中,两者差值的均方根为3.0mm,两者的相关性达到了0.952。利用中国地壳运动监测网络2002年武汉站GPS数据和武汉地区大气加权平均温度模型推算的可降水量与无线电探空比较,GPS可降水量与无线电探空可降水量在数值上和发展趋势上比较接近,说明了无线电探空的大气加权平均温度模型的可靠性。

The article discusses the computed model of the mean vapor pressure-weighted temperature of the atmosphere in Wuhan, which was obtained with the radiosonde data of Wuhan. The accuracy of the model was verified with the comparison between the GPS precipitable water vapor of the model and the results of radiosonde data. In WHDH station, the GPS precipitable water vapor of the mean vapor pressure-weighted temperature of the atmosphere （Tm） in Wuhan was close to the precipitable water vapor of radio- sonde ： the RMS of the difference is 3.0mm and the relativity coefficient amounts to 0. 952. It was proved the reliability of GPS precipitable water vapor in Wuhan GPS Network and the usability of the Tm model by the approximation between numerical value and trend of the GPS precipitable water vapor in the Crust Monitor Observation Network of China and the radiosonde data.