基于GAMIT系统的GPS/MET数据反演及其在闽南地区获取PWV的应用
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摘要
基于福建省闽南地区6个GPS/MET站点的观测资料,利用从IGS下载的精密星历数据,通过GAMIT软件计算出对流层湿延迟(Zenith Wet Delay,ZWD);利用厦门2016年的实际气象资料统计拟合出加权平均温度模型,得到加权平均温度,从而反演出大气可降水量(PWV),并与由探空资料反演的PWV相比较,由GAMIT软件系统反演出大气可降水量结果能够达到实际业务需求的精度。
Based on the observation data from Six GPS/MET Stations in South Fujian Province and the precise ephemeris data downloaded from the IGS,this paper introduced the GAMIT software and the data inverting process to calculate the wet tropospheric delay(Zenith Wet Delay,ZWD). The weighted average temperature model was fitted by using the actual meteorological data of Xiamen in 2016 to obtain weighted average temperature,and then the results of atmospheric precipitable water vapor(PWV)was inverted. By comparing with PWV inverted from sounding data,the results showed that the inversion by GAMIT software could achieve the requested accuracy of atmospheric precipitable water vapor.
Based on the observation data from Six GPS/MET Stations in South Fujian Province and the precise ephemeris data downloaded from the IGS,this paper introduced the GAMIT software and the data inverting process to calculate the wet tropospheric delay(Zenith Wet Delay,ZWD). The weighted average temperature model was fitted by using the actual meteorological data of Xiamen in 2016 to obtain weighted average temperature,and then the results of atmospheric precipitable water vapor(PWV)was inverted. By comparing with PWV inverted from sounding data,the results showed that the inversion by GAMIT software could achieve the requested accuracy of atmospheric precipitable water vapor.
引文
[1]李国平,黄丁发.GPS气象学研究及应用的进展与前景[J].气象科学,2005,25(6):651-661.
[2] Askne,J,H Nordius. Estimation of tropospheric delay for microwaves from surface weather data[J]. Radio Sci,1987(22):379-386.
[3] Bevis M,S Businger,S Chiswell,et al. GPS meteorology:mapping zenith wet delay onto precipitable water[J]. of Applied Meteorology,1994(33):379-386.
[4]刘邢巍,蒲德祥,高翔,等.基于GAMIT10.61的高精度GPS/BDS数据处理及精度对比分析[J].全球定位系统,2018,43(5):77-83.
[5]赵国强,任雳.基于GAMIT/GLOBK的GPS数据处理平台搭建[J].测绘地理信息,2016,25(1):37-42.
[6]吕成亮,王晓珅.GAMIT基线解算质量指标分析[J].城市勘测,2015(6):59-62.
[7]付英,秦长坤.两种IGS精密星历插值方法的精度探究[J].测绘与空间地理信息,2018(10):160-162.
[8]王录爽,李森.双系统平台下GAMIT/LOBK10.60安装与使用[J].全球定位系统,2017,26(2):113-116.
[9]刘盼,刘智敏,张明敏.不同IGS星历产品对地基GPS反演水汽的影响[J].测绘科学,2018,73(12):17-22.
[10]李敏,郭仕伟,魏娜,等.GPS站坐标中的交点年周期误差研究[J].地球物理学进展,2018(2):473-478.
[11]马飞虎,孙喜文,贺小星.基于GAMIT的IG理与分析[J].华东交通大学学报,2018,18(4):124-132.
[12]陈兆林,孙钦帮,张书毕,等.IGS超快星历对GPS近实时反演水汽精度的影响研究[J].气象科学,2017,(5):652-658.
[13]马飞虎,饶志强,孙喜文,等.GAMIT/GLOBK软件在高精度GPS数据处理中的应用[J].北京测绘,2017,12(4):19-22.
[14]张阳,陈晨,付丹丹,等.一种全球对流层延迟改正的映射函数选择方法[J].导航定位学报,2018,56(2):132-136.
[15]马利华,王晓岚,周上力.基于GAMIT/GLOBK软件的GPS观测数据分析[J].城市勘测2015,54(2):78-82.
[16]郑二龙,伍吉仓,毕元,等.基于GAMIT高精度数据处理及精度分析[J].工程勘察,2015(11):55-58.
[17]杨登科,安向东.基于GAMIT的GPS基线解类型分析[J].测绘地理信息,2016,73(5):25-28.
[18]汪波,张显云,杜宁,等.区域连续性强降水过程中GPS/PWV的特征分析[J].测绘空间地理信息,2015(11):66-70.
[19]李征,陈生录,张永荥.基于GAMIT软件反演大气可降水量初步探究[J].青海国土经略,2015(1):49-50.
[20]赵海兰,谢亚楠,于春艳,等.地基GPS可降水量反演的测站相关性研究[J].电子测量技术,2014(6):85-88.
[21]杨永飞,潘文霞.基于GAMIT软件的高精度GPS基线解算分析[J].地矿测绘,2015(3):26-27.
[2] Askne,J,H Nordius. Estimation of tropospheric delay for microwaves from surface weather data[J]. Radio Sci,1987(22):379-386.
[3] Bevis M,S Businger,S Chiswell,et al. GPS meteorology:mapping zenith wet delay onto precipitable water[J]. of Applied Meteorology,1994(33):379-386.
[4]刘邢巍,蒲德祥,高翔,等.基于GAMIT10.61的高精度GPS/BDS数据处理及精度对比分析[J].全球定位系统,2018,43(5):77-83.
[5]赵国强,任雳.基于GAMIT/GLOBK的GPS数据处理平台搭建[J].测绘地理信息,2016,25(1):37-42.
[6]吕成亮,王晓珅.GAMIT基线解算质量指标分析[J].城市勘测,2015(6):59-62.
[7]付英,秦长坤.两种IGS精密星历插值方法的精度探究[J].测绘与空间地理信息,2018(10):160-162.
[8]王录爽,李森.双系统平台下GAMIT/LOBK10.60安装与使用[J].全球定位系统,2017,26(2):113-116.
[9]刘盼,刘智敏,张明敏.不同IGS星历产品对地基GPS反演水汽的影响[J].测绘科学,2018,73(12):17-22.
[10]李敏,郭仕伟,魏娜,等.GPS站坐标中的交点年周期误差研究[J].地球物理学进展,2018(2):473-478.
[11]马飞虎,孙喜文,贺小星.基于GAMIT的IG理与分析[J].华东交通大学学报,2018,18(4):124-132.
[12]陈兆林,孙钦帮,张书毕,等.IGS超快星历对GPS近实时反演水汽精度的影响研究[J].气象科学,2017,(5):652-658.
[13]马飞虎,饶志强,孙喜文,等.GAMIT/GLOBK软件在高精度GPS数据处理中的应用[J].北京测绘,2017,12(4):19-22.
[14]张阳,陈晨,付丹丹,等.一种全球对流层延迟改正的映射函数选择方法[J].导航定位学报,2018,56(2):132-136.
[15]马利华,王晓岚,周上力.基于GAMIT/GLOBK软件的GPS观测数据分析[J].城市勘测2015,54(2):78-82.
[16]郑二龙,伍吉仓,毕元,等.基于GAMIT高精度数据处理及精度分析[J].工程勘察,2015(11):55-58.
[17]杨登科,安向东.基于GAMIT的GPS基线解类型分析[J].测绘地理信息,2016,73(5):25-28.
[18]汪波,张显云,杜宁,等.区域连续性强降水过程中GPS/PWV的特征分析[J].测绘空间地理信息,2015(11):66-70.
[19]李征,陈生录,张永荥.基于GAMIT软件反演大气可降水量初步探究[J].青海国土经略,2015(1):49-50.
[20]赵海兰,谢亚楠,于春艳,等.地基GPS可降水量反演的测站相关性研究[J].电子测量技术,2014(6):85-88.
[21]杨永飞,潘文霞.基于GAMIT软件的高精度GPS基线解算分析[J].地矿测绘,2015(3):26-27.
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