海潮负荷效应对我国及周边IGS站的影响
发布时间：2018-12-09 17:51
【摘要】：针对近海区域海潮变化复杂且海潮负荷效应显著,而全球海潮模型在近海区域精度较低的问题,该文提出了将全球海潮模型NAO.99b和区域模型osu.chinasea.2010相结合,分析海潮对中国大陆及周边地区IGS站的影响。使用GAMIT软件解算IGS站实测数据,通过海潮负荷计算软件SPOTL对解算结果进行改正,并对改正效果进行对比和分析。结果表明,海潮负荷对中国及周边区域站点的影响主要体现在垂直方向,对一些站点的影响可以达到厘米级;海潮负荷对站点坐标的改正效果明显,特别是日本的种子岛站改正效果接近30%;站点改正效果从沿海到内陆逐渐减弱。
[Abstract]:In order to solve the problem that the variation of sea tide is complex and the effect of tidal load is significant in offshore area, the global tidal model (NAO.99b) is combined with the regional model (osu.chinasea.2010) to solve the problem of low accuracy of global tidal model in offshore area. The influence of sea tide on IGS stations in and around China is analyzed. The GAMIT software is used to calculate the measured data of IGS station, and the result is corrected by the sea tide load calculation software SPOTL, and the correction effect is compared and analyzed. The results show that the influence of tidal load on the stations in China and its surrounding areas is mainly in the vertical direction, and the influence on some stations can reach centimeter level. The correction effect of sea tide load on the coordinates of the station is obvious, especially the correction effect of the Zeidao station in Japan is close to 30%, and the correction effect of the station gradually weakens from the coast to the inland.
【作者单位】： 中南大学地球科学与信息物理学院;
【基金】：国家自然科学基金项目(41404013,U1531128)
【分类号】：P228.4;P731.23
本文编号：2369791
[Abstract]:In order to solve the problem that the variation of sea tide is complex and the effect of tidal load is significant in offshore area, the global tidal model (NAO.99b) is combined with the regional model (osu.chinasea.2010) to solve the problem of low accuracy of global tidal model in offshore area. The influence of sea tide on IGS stations in and around China is analyzed. The GAMIT software is used to calculate the measured data of IGS station, and the result is corrected by the sea tide load calculation software SPOTL, and the correction effect is compared and analyzed. The results show that the influence of tidal load on the stations in China and its surrounding areas is mainly in the vertical direction, and the influence on some stations can reach centimeter level. The correction effect of sea tide load on the coordinates of the station is obvious, especially the correction effect of the Zeidao station in Japan is close to 30%, and the correction effect of the station gradually weakens from the coast to the inland.
【作者单位】： 中南大学地球科学与信息物理学院;
【基金】：国家自然科学基金项目(41404013,U1531128)
【分类号】：P228.4;P731.23
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