Geocenter Estimates from Time-Variable Gravity and Ocean Model Outputs

<b>Last Updated: 2019-09-16</b><b><br></b><b>File descriptions:</b><br><i>CSR_RL05_OMCT_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the University of Texas Center for Space Research (CSR) and outputs from the OMCT ocean model. ECMWF corrections from Fagiolini et al. (2015) have been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>CSR_RL05_OMCT_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the University of Texas Center for Space Research (CSR) and outputs from the OMCT ocean model. Release-5 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><br><i>CSR_RL06_MPIOM_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the University of Texas Center for Space Research (CSR) and outputs from the MPIOM ocean model. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>CSR_RL06_MPIOM_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the University of Texas Center for Space Research (CSR) and outputs from the MPIOM ocean model. Release-6 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><br><i>GFZ_RL05_OMCT_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the German Center for Geosciences (GeoForschungsZentrum, GFZ) and outputs from the OMCT ocean model. ECMWF corrections from Fagiolini et al. (2015) have been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>GFZ_RL05_OMCT_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the German Center for Geosciences (GeoForschungsZentrum, GFZ) and outputs from the OMCT ocean model. Release-5 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><br><i>GFZ_RL06_MPIOM_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the German Center for Geosciences (GeoForschungsZentrum, GFZ) and outputs from the MPIOM ocean model. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>GFZ_RL06_MPIOM_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the German Center for Geosciences (GeoForschungsZentrum, GFZ) and outputs from the MPIOM ocean model. Release-5 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><br><i>JPL_RL05_OMCT_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the Jet Propulsion Laboratory (JPL) and outputs from the OMCT ocean model. ECMWF corrections from Fagiolini et al. (2015) have been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>JPL_RL05_OMCT_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-5 time-variable gravity fields from the Jet Propulsion Laboratory (JPL) and outputs from the OMCT ocean model. Release-5 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>JPL_RL06_MPIOM_SLF_iter.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the Jet Propulsion Laboratory (JPL) and outputs from the MPIOM ocean model. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><i>JPL_RL06_MPIOM_SLF_iter_wAOD.txt</i>Monthly geocenter estimate calculating using a self-consistent, iterated geocenter solutions incorporating self-attraction and loading effects. Calculated using GRACE Release-6 time-variable gravity fields from the Jet Propulsion Laboratory (JPL) and outputs from the MPIOM ocean model. Release-6 atmospheric and oceanic de-aliasing (AOD) product has been restored. Glacial Isostatic Adjustment (GIA) estimates from A et al. (2013) with ICE-6G ice history have been restored.<br><br><b>Data Descriptions:</b>Data format:(f11.4,3e20.12,i4)<br><b>Data columns:</b>mid-epoch_time: mid-date of each measurement epoch in decimal-yearsC10: fully normalized cosine coefficient for degree 1 and order 0C11: fully normalized cosine coefficient for degree 1 and order 1S11: fully normalized sine coefficient for degree 1 and order 1month: GRACE month of each measurement epoch (months starting 2002-01-01)

最后更新：2019-09-16

文件说明：
*CSR_RL05_OMCT_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于美国德克萨斯大学空间研究中心（Center for Space Research, CSR）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Fagiolini等人2015年研究中的ECMWF修正项。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（Glacial Isostatic Adjustment, GIA）估计值。
*CSR_RL05_OMCT_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于美国德克萨斯大学空间研究中心（Center for Space Research, CSR）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Release-5大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。

*CSR_RL06_MPIOM_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于美国德克萨斯大学空间研究中心（Center for Space Research, CSR）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*CSR_RL06_MPIOM_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于美国德克萨斯大学空间研究中心（Center for Space Research, CSR）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复使用Release-6大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。

*GFZ_RL05_OMCT_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于德国地球科学研究中心（GeoForschungsZentrum, GFZ）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Fagiolini等人2015年研究中的ECMWF修正项。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*GFZ_RL05_OMCT_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于德国地球科学研究中心（GeoForschungsZentrum, GFZ）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Release-5大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。

*GFZ_RL06_MPIOM_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于德国地球科学研究中心（GeoForschungsZentrum, GFZ）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*GFZ_RL06_MPIOM_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于德国地球科学研究中心（GeoForschungsZentrum, GFZ）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复使用Release-5大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。

*JPL_RL05_OMCT_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于喷气推进实验室（Jet Propulsion Laboratory, JPL）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Fagiolini等人2015年研究中的ECMWF修正项。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*JPL_RL05_OMCT_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于喷气推进实验室（Jet Propulsion Laboratory, JPL）的GRACE Release-5时变重力场，以及OMCT海洋模式的输出结果进行计算。已恢复使用Release-5大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*JPL_RL06_MPIOM_SLF_iter.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于喷气推进实验室（Jet Propulsion Laboratory, JPL）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。
*JPL_RL06_MPIOM_SLF_iter_wAOD.txt*：采用自洽迭代地心解算得到的月度地心估计值，该解算纳入了自吸引与负荷效应。本数据集基于喷气推进实验室（Jet Propulsion Laboratory, JPL）的GRACE Release-6时变重力场，以及MPIOM海洋模式的输出结果进行计算。已恢复使用Release-6大气与海洋去混叠（de-aliasing, AOD）产品。已恢复采用带有ICE-6G冰历史记录的A等人2013年研究得到的冰川均衡调整（GIA）估计值。

数据说明：
数据格式：(f11.4,3e20.12,i4)
数据列说明：
mid-epoch_time：各测量历元的中值日期，以十进制年份表示
C10：阶数1、阶次0的完全归一化余弦系数
C11：阶数1、阶次1的完全归一化余弦系数
S11：阶数1、阶次1的完全归一化正弦系数
month：各测量历元对应的GRACE月份（以2002年1月1日为起始月份）