The Release 04 CHAMP and GRACE EIGEN Gravity Field Models
The Release 04 CHAMP and GRACE EIGEN Gravity Field Models
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DOI：
10.1007/978-3-642-10228-8_4
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
F. Flechtner;C. Dahle;K. Neumayer;R. König;C. Förste
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文献类型：
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作者：
F. Flechtner;C. Dahle;K. Neumayer;R. König;C. Förste
在本文中，我们重点介绍了 CHAMP 和 GRACE 在重力场恢复方面取得的进展，从而产生了新的 GFZ 版本 04 (RL04) EIGEN（通过新技术改进的欧洲地球重力场）模型。 RL04 由每月 CHAMP 和 GRACE 重力模型的时间序列、纯每周 GRACE 解决方案以及来自仅卫星和地面数据的组合静态场组成。此外，还生成了新的仅包含 CHAMP 的平均重力场模型。很明显，RL04背景建模、处理标准和策略的改进导致了重新处理的重力场模型的显着改进。这些新的 RL04 EIGEN 模型几乎适用于整个 CHAMP 和 GRACE 任务周期，为监测地球系统中的质量传输和质量分布现象提供了重要的数据库，例如大陆水文循环、南极洲和格陵兰岛的冰块损失、海洋质量变化或海洋表面地形。
In this article we highlight the advances in gravity field recovery with CHAMP and GRACE, leading to the new GFZ release 04 (RL04) EIGEN (European Improved Gravity field of the Earth by New techniques) models. RL04 consists of time series of monthly CHAMP and GRACE gravity models, pure weekly GRACE solutions and combined static fields from satellite-only and terrestrial data. Additionally a new mean CHAMP-only gravity field model has been generated. It becomes obvious that the improvements in the RL04 background modelling, processing standards and strategies have led to significant improvements in the reprocessed gravity field models. These new RL04 EIGEN models, available for nearly the whole CHAMP and GRACE mission periods, provide an important data base to monitor mass transport and mass distribution phenomena in the system Earth, such as the continental hydrological cycle, ice mass loss in Antarctica and Greenland, ocean mass changes or the ocean surface topography.