| 利用卫星重力测量确定地球重力场模型的进展 |
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| 引用本文： | 罗志才,钟波,周浩,吴云龙.利用卫星重力测量确定地球重力场模型的进展[J].武汉大学学报(信息科学版),2022,47(10):1713-1727. |
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| 作者姓名： | 罗志才 钟波 周浩 吴云龙 |
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| 作者单位： | 1.华中科技大学物理学院，湖北 武汉，430074 |
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| 基金项目： | 国家自然科学基金41931074国家自然科学基金41974015国家自然科学基金42061134007 |
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| 摘 要： | 卫星重力测量是当前探测全球一致、高精度和高分辨率地球重力场的高效技术手段，主要包括高低卫星跟踪卫星测量（satellite-to-satellite tracking in high-low mode, SST-hl）、低低卫星跟踪卫星测量（satellite-to-satellite tracking in low-low mode, SST-ll）和卫星重力梯度测量（satellite gravity gradiometry，SGG）。系统总结了利用卫星重力测量技术（包括SST-hl、SST-ll和SGG及多模式组合）反演地球重力场的主要方法，评述了利用挑战性小卫星有效载荷（challenging mini-satellite payload, CHAMP）、重力恢复与气候实验（gravity recovery and climate experiment, GRACE）/ GRACE继任者（GRACE follow-on, GRACE -FO）和地球重力场和海洋环流探索器（gravity field and steady-state ocean circulation explorer, GOCE）卫星重力数据构建静态和时变重力场模型的最新进展，并对当前具有代表性的地球重力场模型精度进行了分析和评估，以期对未来的地球重力场研究及其地学应用提供参考。
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| 关 键 词： | 地球重力场 卫星重力测量 多模式观测数据融合 模型精度评估 |
| 收稿时间： | 2022-08-31 |
Progress in Determining the Earth's Gravity Field Model by Satellite Gravimetry |
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| Institution: | 1.School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China2.School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China3.School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | Satellite gravimetry is an efficient technical means to detect the global consistent, high-precision and high-resolution Earth's gravity field, mainly including high-low satellite-to-satellite tracking (SST-hl), low-low satellite-to-satellite tracking (SST-ll) and satellite gravity gradiometry (SGG). We summarize the main methods to recover the earth's gravity field from satellite gravimetry technologies (including SST-hl, SST-ll, SGG and multi-mode combination), and review the latest progress in constructing the static and time-variable gravity field models using challenging mini-satellite payload(CHAMP), gravity recovery and climate experiment(GRACE)/GRACE follow-on(GRACE-FO) and gravity field and steady-state ocean circulation explorer(GOCE) satellite gravity measurements. And the accuracies of the current representative static and time-variable gravity field models are analyzed and evaluated. It is expected to provide reference for the study of the Earth's gravity field and its geoscience application in the future. |
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