Evaluation of global ocean tide models based on tidal gravity observations in China
Previous studies show that the calculated loading effects from global ocean tide models do not match actual measurements of gravity attraction and loading effects in Southeast Asia. In this paper, taking advantage of a unique network of gravity tidal stations all over the Chinese mainland, we compar...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-11-01
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| Series: | Geodesy and Geodynamics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674984721000586 |
| _version_ | 1818651911672299520 |
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| author | Hongbo Tan Olivier Francis Guiju Wu Guangliang Yang Jiapei Wang Xiaotong Zhang Jinshui Huang Chongyang Shen |
| author_facet | Hongbo Tan Olivier Francis Guiju Wu Guangliang Yang Jiapei Wang Xiaotong Zhang Jinshui Huang Chongyang Shen |
| author_sort | Hongbo Tan |
| collection | DOAJ |
| description | Previous studies show that the calculated loading effects from global ocean tide models do not match actual measurements of gravity attraction and loading effects in Southeast Asia. In this paper, taking advantage of a unique network of gravity tidal stations all over the Chinese mainland, we compare the observed and modeled tidal loading effects on the basis of the most recent global ocean tide models. The results show that the average efficiencies of the ocean tidal loading correction for O1, K1, M2 are 77%, 73% and 59%, respectively. The loading correction efficiencies using recent ocean tidal models are better than the 40 years old Schwiderskis model at coastal stations, but relative worse at stations far from ocean. |
| first_indexed | 2024-12-17T02:13:38Z |
| format | Article |
| id | doaj.art-9f3951927e074d35b153db4b95e46fa6 |
| institution | Directory Open Access Journal |
| issn | 1674-9847 |
| language | English |
| last_indexed | 2024-12-17T02:13:38Z |
| publishDate | 2021-11-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Geodesy and Geodynamics |
| spelling | doaj.art-9f3951927e074d35b153db4b95e46fa62022-12-21T22:07:29ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472021-11-01126451458Evaluation of global ocean tide models based on tidal gravity observations in ChinaHongbo Tan0Olivier Francis1Guiju Wu2Guangliang Yang3Jiapei Wang4Xiaotong Zhang5Jinshui Huang6Chongyang Shen7School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, China; Corresponding author. School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.Faculty of Science, Technology and Communication, University of Luxembourg, Esch-sur-Alzette, L-4365, LuxembourgKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, ChinaSchool of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, ChinaKey Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, 430071, ChinaPrevious studies show that the calculated loading effects from global ocean tide models do not match actual measurements of gravity attraction and loading effects in Southeast Asia. In this paper, taking advantage of a unique network of gravity tidal stations all over the Chinese mainland, we compare the observed and modeled tidal loading effects on the basis of the most recent global ocean tide models. The results show that the average efficiencies of the ocean tidal loading correction for O1, K1, M2 are 77%, 73% and 59%, respectively. The loading correction efficiencies using recent ocean tidal models are better than the 40 years old Schwiderskis model at coastal stations, but relative worse at stations far from ocean.http://www.sciencedirect.com/science/article/pii/S1674984721000586Gravity signalsOcean tidal loadingGlobal ocean tide modelsgPhone gravimeter |
| spellingShingle | Hongbo Tan Olivier Francis Guiju Wu Guangliang Yang Jiapei Wang Xiaotong Zhang Jinshui Huang Chongyang Shen Evaluation of global ocean tide models based on tidal gravity observations in China Geodesy and Geodynamics Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter |
| title | Evaluation of global ocean tide models based on tidal gravity observations in China |
| title_full | Evaluation of global ocean tide models based on tidal gravity observations in China |
| title_fullStr | Evaluation of global ocean tide models based on tidal gravity observations in China |
| title_full_unstemmed | Evaluation of global ocean tide models based on tidal gravity observations in China |
| title_short | Evaluation of global ocean tide models based on tidal gravity observations in China |
| title_sort | evaluation of global ocean tide models based on tidal gravity observations in china |
| topic | Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter |
| url | http://www.sciencedirect.com/science/article/pii/S1674984721000586 |
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