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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Autores principales:	Hongbo Tan, Olivier Francis, Guiju Wu, Guangliang Yang, Jiapei Wang, Xiaotong Zhang, Jinshui Huang, Chongyang Shen
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter Geodesy QB275-343 Geophysics. Cosmic physics QC801-809
Acceso en línea:	https://doaj.org/article/9f3951927e074d35b153db4b95e46fa6
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id	oai:doaj.org-article:9f3951927e074d35b153db4b95e46fa6
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spelling	oai:doaj.org-article:9f3951927e074d35b153db4b95e46fa62021-11-18T04:46:10ZEvaluation of global ocean tide models based on tidal gravity observations in China1674-984710.1016/j.geog.2021.08.001https://doaj.org/article/9f3951927e074d35b153db4b95e46fa62021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1674984721000586https://doaj.org/toc/1674-9847Previous 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.Hongbo TanOlivier FrancisGuiju WuGuangliang YangJiapei WangXiaotong ZhangJinshui HuangChongyang ShenKeAi Communications Co., Ltd.articleGravity signalsOcean tidal loadingGlobal ocean tide modelsgPhone gravimeterGeodesyQB275-343Geophysics. Cosmic physicsQC801-809ENGeodesy and Geodynamics, Vol 12, Iss 6, Pp 451-458 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter Geodesy QB275-343 Geophysics. Cosmic physics QC801-809
spellingShingle	Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 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
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.
format	article
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
title	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_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_sort	evaluation of global ocean tide models based on tidal gravity observations in china
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/9f3951927e074d35b153db4b95e46fa6
work_keys_str_mv	AT hongbotan evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT olivierfrancis evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT guijuwu evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT guangliangyang evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT jiapeiwang evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT xiaotongzhang evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT jinshuihuang evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina AT chongyangshen evaluationofglobaloceantidemodelsbasedontidalgravityobservationsinchina
_version_	1718425057137524736

Evaluation of global ocean tide models based on tidal gravity observations in China

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