郑州地区大气加权平均温度模型确定  

Modeling of Atmosphere Weighted Mean Temperature of Zhengzhou Region

作　　者：张洛恺[1,2] 杨力[2] 王艳玲[3] 王金娜[4] 张好[2] 杨玉海[2] 

机构地区：[1]61287部队,四川成都610000 [2]信息工程大学,河南郑州450001 [3]郑州市气象局,河南郑州450005 [4]河南省地质测绘总院,河南郑州450006

出　　处：《测绘科学技术学报》2014年第6期566-569,共4页Journal of Geomatics Science and Technology

摘　　要：地基GPS气象学中,大气加权平均温度Tm作为一个重要参数,影响着GPS信号湿延迟在垂直方向上转化为大气水汽的精度。文中首先介绍了几种常用的大气加权平均温度计算方法;然后利用郑州无线电探空资料,通过线性回归方法得出郑州地区大气加权平均温度的计算模型;最后将所得模型应用到郑州地区GPS可降水量计算中。通过与无线电探空实测结果对比分析,验证了该模型的可用性。In ground-based GPS / MET, weighted mean atmospheric temperature Tmis an important parameter which influences the GPS signal wet delay in the vertical direction into the precipitable water vapor. At first, several methods are introduced, which used to calculate weighted mean atmospheric temperature. Then linear regression is made to get the empirical formula of Tmwith Zhengzhou radiosonde data. Finally, the models was applied to remote sensing atmospheric water vapor with Zhengzhou GPS data. By comparison with the radiosonde data, the availability of the models has been validated.

关 键 词：GPS气象学 大气加权平均温度 可降水量 线性回归 无线电探空 

分 类 号：P228[天文地球—大地测量学与测量工程]