Articles | Volume 11, issue 1
Research article
14 Feb 2020
Research article |  | 14 Feb 2020

Asthenospheric anelasticity effects on ocean tide loading around the East China Sea observed with GPS

Junjie Wang, Nigel T. Penna, Peter J. Clarke, and Machiel S. Bos

Data sets

Terms of service of GSI's GNSS stations data GSI

FES (Finite Element Solution)-Global tide, FES2014 LEGOS, NOVELTIS and CLS

TPXO9-atlas G. D. Egbert and S. Y. Erofeeva

GNSS Science Data JPL

J-DOSS: JODC Data On-line Service System JODC

Sea level measured by tide gauges from global oceans – the Joint Archive for Sea Level holdings, Version 5.5 P. C. Caldwell, M. A. Merrifield, and P. R. Thompson

Model code and software

SPOTL: Some Programs for Ocean-Tide Loading D. C. Agnew

The OSU12 Global Ocean Tide Model, Version 1.0 H. S. Fok, C. K. Shum, and Y. Yi

Data Services Products: EMC-Reference Models IRIS DMC

Short summary
Changes in the Earth's elastic strength at increasing timescales of deformation affect predictions of its response to the shifting weight of the oceans caused by tides. We show that these changes are detectable using GPS and must be accounted for but that 3-D or locally-tuned models of the Earth's behaviour around the East China Sea provide only slightly better predictions than a simpler model which varies only with depth. Use of this model worldwide will improve precise positioning by GPS.