海潮负荷对江苏CORS高精度测量的影响  

Influence of Ocean Tide Loading on JSCORS High Accuracy Surveying

作　　者：蒋廷臣[1] 张益新[1] 王秀萍[1] 董春来[1] 

机构地区：[1]淮海工学院测绘工程学院,江苏连云港222001

出　　处：《测绘科学技术学报》2012年第5期330-333,共4页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金项目(41004003);江苏省级教改课题项目(JK11009);淮海工学院校级教改课题项目(XJG2011-2-9)

摘　　要：江苏连续运行参考站网络(JSCORS)是数字江苏基础设施之一。它能够提供高精度、高时空分辨率、高效率和高覆盖率的全球导航卫星系统综合信息服务。针对JSCORS高精度测量的影响误差之一海潮负荷进行了研究。利用CRS4.0和FES2004两种海潮模型得到的结果表明,海潮负荷对JSCORS基线X方向和Z方向的位移影响要小于Y方向,其值与台站位置和基线长度有关;且两种模型间的改正值较差,在X方向最大值为1mm,Y方向为0.5mm,Z方向则只有0.2mm,这在利用JSCORS高精度测量中是必须考虑的。Jiangsu Continuously Operating Reference Station（JSCORS） is one of Jiangsu digital infrastructures,which can provide compositive information services of high precision,efficiency and resolution.Ocean tide loading is one of errors influencing JSCORS high precise surveying and has been studied here.Results got by CRS4.0 and FES2004 ocean tide mode indicated that the influence of ocean tide loading to X and Z direction was less than Y direction,and the influence value was relational with place of sation and length of baseline.Difference of correction between two ocean tide modes was different,that was to say,it was 1 mm for X direction,0.5 mm for Y direction,0.2 mm for Z direction.Undoutedly,it was indispensable to consider the influence of ocean tide loading on JSCORS high precise surveying.

关 键 词：江苏省连续运行参考站网络 高精度测量 海潮模型 负荷 全球定位系统 

分 类 号：P228[天文地球—大地测量学与测量工程]