海潮负荷对不同地区GNSS基准站的定位影响分析
|
摘要
针对在不同位置地区进行高精度卫星导航定位中会受海潮负荷大小的影响,该文通过GAMIT/GLOBK对山东省、湖南省区域的国家GNSS基准站数据进行了解算,并分别对基线解结果、测站定位结果进行了分析探讨。结果表明,海潮负荷对整体测站的定位均有不同程度的影响,在U方向影响较大,且海潮负荷对近海区域的测站定位影响为对内陆地区测站影响的3～4倍;且海潮负荷造成影响不仅与基线长度有关,而且与基线端点的所处位置有关,近海地区测站相对内陆地区测站所受海潮负荷影响更大。因此,在解算国家站数据时,应当加入海潮负荷改正,尤其单独解算沿海测站时。
In view of the impact of satellite navigation and positioning on the tide loading in different locations and regions,this paper used GAMIT/GLOBK to solve the national global navigation satellite system(GNSS)datasets in Shandong province and Hunan province,and analyzed the results of baseline solution and station location.The results showed that the impact of ocean tide loading on the location of the whole station varies to some extent,and the impact on the Udirection was greatest,and the impact of the ocean tide loading on the station positioning in the offshore area was about 3～4 times that of the inland area;and the influence of tidal loading was not only related to the length of the baseline but also to the location of the base station,and the influence of the tidal loading on the stations in the inland sea relative to the inland areas was greater.When solving the data of national stations,it is necessary to include the correction of the ocean tide load,especially when calculating the coastal stations separately.
In view of the impact of satellite navigation and positioning on the tide loading in different locations and regions,this paper used GAMIT/GLOBK to solve the national global navigation satellite system(GNSS)datasets in Shandong province and Hunan province,and analyzed the results of baseline solution and station location.The results showed that the impact of ocean tide loading on the location of the whole station varies to some extent,and the impact on the Udirection was greatest,and the impact of the ocean tide loading on the station positioning in the offshore area was about 3～4 times that of the inland area;and the influence of tidal loading was not only related to the length of the baseline but also to the location of the base station,and the influence of the tidal loading on the stations in the inland sea relative to the inland areas was greater.When solving the data of national stations,it is necessary to include the correction of the ocean tide load,especially when calculating the coastal stations separately.
引文
[1] LONGMAN I M.A Green’s function for determining the deformation of the earth under surface mass loads:1.theory[J].Journal of Geophysical Research,1962,67(2):845-850.
[2]周旭华,吴斌,李军.高精度大地测量中的海潮位移改正[J].测绘学报,2001,30(4):327-330.(ZHOU Xuhua,WU Bin,LI Jun.Ocean tide displacement corrections in high precision geodesy[J].Acta Geodaetica et Cartographica Sinica,2001,30(4):327-330.)
[3]周江存,孙和平.海潮负荷对GPS基线的影响[J].大地测量学与地球动力学,2005,25(4):27-32.(ZHOU Jiangcun,SUN Heping.Effect of ocean tide loading on GPS baseline measurement[J].Journal of Geodesy and Geodynamics,2005,25(4):27-32.)
[4]孙和平,周江存,许厚泽.中国地壳运动观测网络基准站应变场变化的海潮负荷信号改正问题[J].测绘学报,2002,31(3):222-227.(SUN Heping,ZHOU Jiangcun,HSU Houtze.Correction problem of the ocean loading signals to strain field variation at foundational stations in crust movement observation network in China[J].Acta Geodaetica et Cartographica Sinica,2002,31(3):222-227.)
[5] BAKER T F,CURITS D J,DODSON A H.Ocean tide loading and GPS[J].GPS World,1995,6(3):54-59.
[6] VEY S,CALAIS E,LLUBES M,et al.GPS measurements of ocean loading and its impact on zenith tropospheric delay estimates:a case study in Brittany,France[J].Journal of Geodesy,2002,76(8):419-427.
[7] KING M A,PENNA N T,CLARKE P J.Validation of ocean tide models around Antarctica using onshore GPS and gravity data[J].Journal of Geophysical Research(Solid Earth),2005,110(B8):B08401.
[8]陈宪东.GPS精密定位中的海潮负荷改正[J].西南交通大学学报,2006,41(4):429-432,441.(CHEN Xiandong.Ocean tide loading corrections in GPS precise positioning[J].Journal of Southwest Jiaotong University,2006,41(4):429-432,441.)
[9]赵红,张勤,黄观文,等.基于不同海潮模型研究海潮负荷对GPS精密定位的影响[J].大地测量与地球动力学,2012,32(5):108-112.(ZHAO Hong,ZHANG Qin,HUANG Guanwen,et al.Effect of ocean tide loading on GPS precise positioning based on different ocean tide models[J].Journal of Geodesy and Geodynamics,2012,32(5):108-112.)
[10]张杰,李斐,楼益栋,等.海潮负荷对GPS精密定位的影响[J].武汉大学学报(信息科学版),2013,38(12):1400-1404.(ZHANG Jie,LI Fei,LOU Yidong,et al.Ocean tide loading effect on GPS precise positioning[J].Geomatics and Information Science of Wuhan University,2013,38(12):1400-1404.)
[11]岳彩亚,党亚民,杨强,等.海潮负荷和大气负荷对陆态网络的综合影响[J].导航定位学报,2016,4(2):6-9.(YUE Caiya,DANG Yamin,YANG Qiang,et al.Comprehensive effect of ocean tide loading and atmospheric loading on Chinese territory station[J].Journal of Navigation and Positioning,2016,4(2):6-9.)
[12]雷锦韬,李裴,张胜凯,等.不同海潮模型对东南极沿海地区GPS基线解算的影响[J].武汉大学学报(信息科学版),2015,40(11):1479-1486.(LEI Jintao,LI Fei,ZHANG Shengkai,et al.Effect of different ocean tide models on GPS baseline solution in coast area,east Antarctica[J].Geomatics and Information Science of Wuhan University,2015,40(11):1479-1486.)
[13]FARRELL W E.Deformation of the earth by surface loads[J].Reviews of Geophysics and Space Physics,1972,10(3):761-797.
[14]王志强.高精度GPS测量中的海潮问题[D].武汉:中国科学院研究生院,2002:20-22.(WANG Zhiqiang.The problem of ocean tide in high precision GPS survey[D].Wuhan:Graduate University of Chinese Academy of Sciences,2002:20-22.)
[15]袁林果,丁晓利,孙和平,等.利用GPS技术精密测定香港海潮负荷位移[J].中国科学(地球科学),2010,40(6):699-714.(YUAN Linguo,DING Xiaoli,SUN Heping,et al.Determination of ocean tide loading displacements in Hong Kong using GPS technique[J].Scientia Sinica(Terrae),2010,40(6):699-714.)
[16]刘经南,张化疑,刘焱雄,等.GNSS研究海潮负荷效应进展[J].武汉大学学报(信息科学版),2016,41(1):9-14.(LIU Jingnan,ZHANG Huayi,LIU Yanxiong,et al.Progress of ocean tide loading inversion based on GNSS[J].Geomatics and Information Science of Wuhan University,2016,41(1):9-14.)
[17]刘辛中,彭琳,刘焱雄,等.海潮负荷对我国沿海GPS观测站的影响研究[J].海岸工程,2013,32(2):36-46.(LIU Xinzhong,PENG Lin,LIU Yanxiong,et al.Effect of ocean tide loading on GPS observation stations along the coast of China[J].Coastal Engineering,2013,32(2):36-46.)
[18]刘宗强,党亚民,杨强,等.对流层映射函数对陆态网解算精度的影响[J].测绘通报,2017(5):6-10.(LIU Zongqiang,DANG Yamin,YANG Qiang,et al.Influence of the tropospheric mapping function on the accuracy of CMONOC solution[J].Bulletin of Surveying and Mapping,2017(5):6-10.)
[19]曹炳强,成英燕,许长辉.海潮模型对连续跟踪参考站数据解算的影响:以福建省为例[J].测绘科学,2015,40(12):108-111.(CAO Bingqiang,CHENG Yingyan,XU Changhui.Discussion of CORS data-sovling influenced by ocean tide models:taking Fujian province as an example[J].Science of Surveying and Mapping,2015,40(12):108-111.)
[2]周旭华,吴斌,李军.高精度大地测量中的海潮位移改正[J].测绘学报,2001,30(4):327-330.(ZHOU Xuhua,WU Bin,LI Jun.Ocean tide displacement corrections in high precision geodesy[J].Acta Geodaetica et Cartographica Sinica,2001,30(4):327-330.)
[3]周江存,孙和平.海潮负荷对GPS基线的影响[J].大地测量学与地球动力学,2005,25(4):27-32.(ZHOU Jiangcun,SUN Heping.Effect of ocean tide loading on GPS baseline measurement[J].Journal of Geodesy and Geodynamics,2005,25(4):27-32.)
[4]孙和平,周江存,许厚泽.中国地壳运动观测网络基准站应变场变化的海潮负荷信号改正问题[J].测绘学报,2002,31(3):222-227.(SUN Heping,ZHOU Jiangcun,HSU Houtze.Correction problem of the ocean loading signals to strain field variation at foundational stations in crust movement observation network in China[J].Acta Geodaetica et Cartographica Sinica,2002,31(3):222-227.)
[5] BAKER T F,CURITS D J,DODSON A H.Ocean tide loading and GPS[J].GPS World,1995,6(3):54-59.
[6] VEY S,CALAIS E,LLUBES M,et al.GPS measurements of ocean loading and its impact on zenith tropospheric delay estimates:a case study in Brittany,France[J].Journal of Geodesy,2002,76(8):419-427.
[7] KING M A,PENNA N T,CLARKE P J.Validation of ocean tide models around Antarctica using onshore GPS and gravity data[J].Journal of Geophysical Research(Solid Earth),2005,110(B8):B08401.
[8]陈宪东.GPS精密定位中的海潮负荷改正[J].西南交通大学学报,2006,41(4):429-432,441.(CHEN Xiandong.Ocean tide loading corrections in GPS precise positioning[J].Journal of Southwest Jiaotong University,2006,41(4):429-432,441.)
[9]赵红,张勤,黄观文,等.基于不同海潮模型研究海潮负荷对GPS精密定位的影响[J].大地测量与地球动力学,2012,32(5):108-112.(ZHAO Hong,ZHANG Qin,HUANG Guanwen,et al.Effect of ocean tide loading on GPS precise positioning based on different ocean tide models[J].Journal of Geodesy and Geodynamics,2012,32(5):108-112.)
[10]张杰,李斐,楼益栋,等.海潮负荷对GPS精密定位的影响[J].武汉大学学报(信息科学版),2013,38(12):1400-1404.(ZHANG Jie,LI Fei,LOU Yidong,et al.Ocean tide loading effect on GPS precise positioning[J].Geomatics and Information Science of Wuhan University,2013,38(12):1400-1404.)
[11]岳彩亚,党亚民,杨强,等.海潮负荷和大气负荷对陆态网络的综合影响[J].导航定位学报,2016,4(2):6-9.(YUE Caiya,DANG Yamin,YANG Qiang,et al.Comprehensive effect of ocean tide loading and atmospheric loading on Chinese territory station[J].Journal of Navigation and Positioning,2016,4(2):6-9.)
[12]雷锦韬,李裴,张胜凯,等.不同海潮模型对东南极沿海地区GPS基线解算的影响[J].武汉大学学报(信息科学版),2015,40(11):1479-1486.(LEI Jintao,LI Fei,ZHANG Shengkai,et al.Effect of different ocean tide models on GPS baseline solution in coast area,east Antarctica[J].Geomatics and Information Science of Wuhan University,2015,40(11):1479-1486.)
[13]FARRELL W E.Deformation of the earth by surface loads[J].Reviews of Geophysics and Space Physics,1972,10(3):761-797.
[14]王志强.高精度GPS测量中的海潮问题[D].武汉:中国科学院研究生院,2002:20-22.(WANG Zhiqiang.The problem of ocean tide in high precision GPS survey[D].Wuhan:Graduate University of Chinese Academy of Sciences,2002:20-22.)
[15]袁林果,丁晓利,孙和平,等.利用GPS技术精密测定香港海潮负荷位移[J].中国科学(地球科学),2010,40(6):699-714.(YUAN Linguo,DING Xiaoli,SUN Heping,et al.Determination of ocean tide loading displacements in Hong Kong using GPS technique[J].Scientia Sinica(Terrae),2010,40(6):699-714.)
[16]刘经南,张化疑,刘焱雄,等.GNSS研究海潮负荷效应进展[J].武汉大学学报(信息科学版),2016,41(1):9-14.(LIU Jingnan,ZHANG Huayi,LIU Yanxiong,et al.Progress of ocean tide loading inversion based on GNSS[J].Geomatics and Information Science of Wuhan University,2016,41(1):9-14.)
[17]刘辛中,彭琳,刘焱雄,等.海潮负荷对我国沿海GPS观测站的影响研究[J].海岸工程,2013,32(2):36-46.(LIU Xinzhong,PENG Lin,LIU Yanxiong,et al.Effect of ocean tide loading on GPS observation stations along the coast of China[J].Coastal Engineering,2013,32(2):36-46.)
[18]刘宗强,党亚民,杨强,等.对流层映射函数对陆态网解算精度的影响[J].测绘通报,2017(5):6-10.(LIU Zongqiang,DANG Yamin,YANG Qiang,et al.Influence of the tropospheric mapping function on the accuracy of CMONOC solution[J].Bulletin of Surveying and Mapping,2017(5):6-10.)
[19]曹炳强,成英燕,许长辉.海潮模型对连续跟踪参考站数据解算的影响:以福建省为例[J].测绘科学,2015,40(12):108-111.(CAO Bingqiang,CHENG Yingyan,XU Changhui.Discussion of CORS data-sovling influenced by ocean tide models:taking Fujian province as an example[J].Science of Surveying and Mapping,2015,40(12):108-111.)