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Article

Next-Generation Gravity Missions: Sino-European Numerical Simulation Comparison Exercise

1
Institute of Astronomical and Physical Geodesy, Technical University of Munich, 80333 Munich, Germany
2
School of Physics and Astronomy, Sun Yat-sen University (Zhuhai Campus), Zhuhai 519082, China
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State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, APM, Chinese Academy of Sciences, Wuhan 430077, China
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College of Surveying and Geo-informatics, Tongji University, Shanghai 200092, China
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Institute of Geophysics and PGMF, Huazhong University of Science and Technology, Wuhan 430074, China
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School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China, and Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, China
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ESA–European Space Agency, 2201 AZ Noordwijk, The Netherlands
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(22), 2654; https://doi.org/10.3390/rs11222654
Received: 10 October 2019 / Revised: 1 November 2019 / Accepted: 11 November 2019 / Published: 13 November 2019
(This article belongs to the Special Issue Remote Sensing by Satellite Gravimetry)
Temporal gravity retrieval simulation results of a future Bender-type double pair mission concept, performed by five processing centers of a Sino-European study team, have been inter-compared and assessed. They were computed in a synthetic closed-loop simulation world by five independent software systems applying different gravity retrieval methods, but were based on jointly defined mission scenarios. The inter-comparison showed that the results achieved a quite similar performance. Exemplarily, the root mean square (RMS) deviations of global equivalent water height fields from their true reference, resolved up to degree and order 30 of a 9-day solution, vary in the order of 10% of the target signal. Also, co-estimated independent daily gravity fields up to degree and order 15, which have been co-estimated by all processing centers, do not show large differences among each other. This positive result is an important pre-requisite and basis for future joint activities towards the realization of next-generation gravity missions. View Full-Text
Keywords: next-generation gravity mission; temporal gravity field; numerical closed-loop simulation; satellite mission constellations; mass transport next-generation gravity mission; temporal gravity field; numerical closed-loop simulation; satellite mission constellations; mass transport
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MDPI and ACS Style

Pail, R.; Yeh, H.-C.; Feng, W.; Hauk, M.; Purkhauser, A.; Wang, C.; Zhong, M.; Shen, Y.; Chen, Q.; Luo, Z.; Zhou, H.; Liu, B.; Zhao, Y.; Zou, X.; Xu, X.; Zhong, B.; Haagmans, R.; Xu, H. Next-Generation Gravity Missions: Sino-European Numerical Simulation Comparison Exercise. Remote Sens. 2019, 11, 2654. https://doi.org/10.3390/rs11222654

AMA Style

Pail R, Yeh H-C, Feng W, Hauk M, Purkhauser A, Wang C, Zhong M, Shen Y, Chen Q, Luo Z, Zhou H, Liu B, Zhao Y, Zou X, Xu X, Zhong B, Haagmans R, Xu H. Next-Generation Gravity Missions: Sino-European Numerical Simulation Comparison Exercise. Remote Sensing. 2019; 11(22):2654. https://doi.org/10.3390/rs11222654

Chicago/Turabian Style

Pail, Roland, Hsien-Chi Yeh, Wei Feng, Markus Hauk, Anna Purkhauser, Changqing Wang, Min Zhong, Yunzhong Shen, Qiujie Chen, Zhicai Luo, Hao Zhou, Bingshi Liu, Yongqi Zhao, Xiancai Zou, Xinyu Xu, Bo Zhong, Roger Haagmans, and Houze Xu. 2019. "Next-Generation Gravity Missions: Sino-European Numerical Simulation Comparison Exercise" Remote Sensing 11, no. 22: 2654. https://doi.org/10.3390/rs11222654

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