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  

Discussion of CORS data-sovling influenced by ocean tide loading models

作　　者：曹炳强[1] 成英燕[1] 许长辉[1] 

机构地区：[1]中国测绘科学研究院,北京100830

出　　处：《测绘科学》2015年第12期108-111,共4页Science of Surveying and Mapping

基　　金：国家自然基金项目(41374014);863课题项目(2013AA122501);中国测绘科学研究院科研业务费项目(7771518)

摘　　要：针对在近海或海洋区域进行高精度全球定位系统测量中海潮负荷的影响,该文通过GAMIT对福建省的连续跟踪参考站数据进行了解算,并对解算结果进行了进一步的探讨。结果表明,海潮负荷对近海的连续跟踪参考站的影响在U方向上能达到亚毫米级,而且与测站与海的距离、基线的长度,以及基准站的选择都有一定的关系。在解算福建省的连续跟踪参考站数据时,海潮负荷的影响是可以忽略的,均可满足大多数的工程需要。对于如何更好地消除海潮负荷的影响,以满足更高精度的要求,还值得进一步的探讨。The impact of ocean tide loading can not be ignored in the high-precision GPS measurements,especially in coastal or marine areas.In the coastal areas of Fujian province,there are a lot of continuously operating reference stations（CORS）.In this paper,the CORS stations＇ data of Fujian by GAMIT were processed,and the results were further explored.It was found that the impact of ocean tide loading for CORS stations could reach sub-millimeter level in the U direction,and had a certain relationship with the distance of a station from the sea,the length of the baseline,and the base station.It was found that during the CORS data-solving of Fujian,the impact of ocean tide loading could be negligible,and could meet the needs of most of the projects.The next step is also worth of exploring to better eliminate the influence of ocean tide loading to meet higher precision requirements.

关 键 词：GAMIT 连续跟踪参考站 海潮负荷 基线 

分 类 号：P228[天文地球—大地测量学与测量工程]