Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4529
Title: Evaluation of ocean tide models used for Jason-2 altimetry corrections
Authors: Fok, H. S.
Iz, H. Bâki
Shum, C. K.
Yi, Yuchan
Andersen, Ole
Braun, Alexander
Chao, Yi
Han, Guoqi
Kuo, C. Y.
Matsumoto, Koji
Song, Y. Tony
Subjects: Ocean tides
Satellite altimetry
Coastal regions
Issue Date: 2010
Publisher: Taylor & Francis
Source: Marine geodesy, 2010, v. 33, S1, p. 285-303.
Abstract: It has been more than a decade since the last comprehensive accuracy assessment of global ocean tide models. Here, we conduct an evaluation of the barotropic ocean tide corrections, which were computed using FES2004 and GOT00.2, and other models on the Jason-2 altimetry Geophysical Data Record (GDR), with a focus on selected coastal regions with energetic ocean dynamics. We compared nine historical and contemporary ocean tide models with pelagic tidal constants and with multiple satellite altimetry mission (T/P, ERS-1/-2, Envisat, GFO, Jason-1/-2) sea level anomalies using variance reduction studies. All accuracy assessment methods show consistent results. We conclude that all the contemporary ocean tide models evaluated have similar performance in the selected coastal regions. However, their accuracies are region-dependent and overall are significantly worse than those in the deep-ocean, which are at the 2–3 cm RMS (root-mean-square) level. The Gulf of Mexico and Northwest Atlantic regions present the least reduction of altimetry sea surface height variability after ocean tides are removed, primarily because of large oceanic variability associated with loop currents in the Gulf of Mexico and the Gulf Stream in the Northwest Atlantic.
Rights: © 2010 Taylor & Francis. This is an electronic version of an article published in H. S. Fok, et al. (2010), Evaluation of ocean tide models used for Jason-2 altimetry corrections, Marine Geodesy, 33(S1), 285–303. Marine Geodesy is available online at: http://www.tandfonline.com/, the open URL of the article: http://www.tandfonline.com/doi/abs/10.1080/01490419.2010.491027
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/4529
DOI: 10.1080/01490419.2010.491027
ISSN: 0149-0419 (print)
1521-060X (online)
Appears in Collections:LSGI Journal/Magazine Articles

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