海潮负荷和大气负荷对陆态网络的综合影响

发布时间：2018-03-10 14:16

  本文选题：海潮负荷　切入点：大气负荷　出处：《导航定位学报》2016年02期 　论文类型：期刊论文

【摘要】：针对高精度大范围的GPS控制网进行基线解算和平差时,海潮负荷和大气负荷对地面测站造成的影响最大可达厘米级的问题,阐述了2种负荷的影响原理和各种负荷常用的改正模型;还结合中国陆态网络,从短基线、南北方向长基线、东西方向长基线和靠海基线4个方面对比分析了2种负荷对网和测站的综合影响。结果表明东西方向的基线比南北方向的基线更容易受到2种负荷的影响,且长、短基线受到的影响表现出一定的季节性变化。为监测中国大陆地壳运动、重力场形态及变化和现代大地测量基准系统的建立和维持提供了参考。
[Abstract]:For the GPS control network with high precision and large range, the maximum influence on the ground station caused by tidal load and atmospheric load can reach centimeter level when the baseline solution is not equal to the difference. This paper expounds the influence principle of two kinds of loads and the correction models of various kinds of loads, and combines with the land state network of China, from the short baseline to the north and south direction long baseline, The combined effects of the two loads on the network and the station are compared and analyzed in four aspects: the long baselines in the east and the west and the baselines in the sea. The results show that the baselines in the east-west direction are more susceptible to the effects of the two loads than the baselines in the north and south directions. The influence of short baselines shows seasonal variation which provides a reference for monitoring crustal movement gravity field shape and variation and the establishment and maintenance of modern geodetic datum system.
【作者单位】： 山东科技大学测绘科学与工程学院;中国测绘科学研究院;
【基金】：国家自然科学基金项目(41474011) 国家青年科学基金项目(41404034) 国家公益性行业专项(B1503) 国家基础测绘科技项目(2016KJ0205) 中国测绘科学研究院科研业务费支持项目(7771502)
【分类号】：P228.4
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本文编号：1593697