海洋潮汐对卫星重力梯度观测数据的影响分析

发布时间：2018-06-04 21:50

本文选题：海洋潮汐 + 卫星重力　；参考：《测绘与空间地理信息》2016年01期

【摘要】：采用CSR4.0、TPXO7.2和FES2004三个不同海潮模型计算了2009年11月1日至2009年12月1日海洋潮汐对GOCE卫星重力梯度观测数据的影响,其影响量级都处于0.1m E,比GOCE卫星设计精度(3.2m E)略低,但其为有色噪声源,因此,必须在数据预处理中考虑这一部分的影响。除此之外,分析了三个不同海潮模型对地球重力场位系数的影响,三者对10阶以下位系数影响存在较大的差异,说明目前海潮模型之间还存在较大的差异,海潮模型的精度仍然需要提高。
[Abstract]:The influence of ocean tides on gravity gradient observation data of GOCE satellite from November 1, 2009 to December 1, 2009 has been calculated by using three different tidal models of CSR 4.0 and FES2004. The order of influence is 0.1 m E, which is slightly lower than that of GOCE satellite design accuracy (3.2 m E). But it is a colored noise source, so the effect of this part must be considered in data preprocessing. In addition, the influence of three different tidal models on the potential coefficients of the earth's gravity field is analyzed. There are great differences among the three models on the potential coefficients of the earth's gravity field below the 10th order, which indicates that there are still great differences between the current tidal models. The accuracy of the tidal model still needs to be improved.
【作者单位】：广东省地质局第七地质大队;
【分类号】：P223.39

【相似文献】