Dissipation and Bathymetric Sensitivities in an Unstructured Mesh Global Tidal Model

Blakely, Coleman P.; Ling, Guoming; Pringle, William J.; Contreras, María Teresa; Wirasaet, Damrongsak; Westerink, Joannes J.; Moghimi, Saeed; Seroka, Greg; Shi, Lei; Myers, Edward; Owensby, Margaret; Massey, Chris

doi:10.1029/2021JC018178

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Dissipation and Bathymetric Sensitivities in an Unstructured Mesh Global Tidal Model

2022
By Blakely, Coleman P. ; Ling, Guoming ; Pringle, William J. ; ...
Source: Journal of Geophysical Research: Oceans, 127(5)

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Journal Title:

Journal of Geophysical Research: Oceans
Personal Author:

Blakely, Coleman P. ; Ling, Guoming ; Pringle, William J. ; Contreras, María Teresa ; Wirasaet, Damrongsak ; ... More +

Blakely, Coleman P. ; Ling, Guoming ; Pringle, William J. ; Contreras, María Teresa ; Wirasaet, Damrongsak ; Westerink, Joannes J. ; Moghimi, Saeed ; Seroka, Greg ; Shi, Lei ; Myers, Edward ; Owensby, Margaret ; Massey, Chris Less -
NOAA Program & Office:

NOS (National Ocean Service) ; OCS (Office of Coast Survey)

NOS (National Ocean Service) ; OCS (Office of Coast Survey) Less -
Description:

The mechanisms and geographic distribution of global tidal dissipation in barotropic tidal models are examined using a high resolution unstructured mesh finite element model. Mesh resolution varies between 2 and 25 km and is especially focused on inner shelves and steep bathymetric gradients. Tidal response sensitivities to bathymetric changes are examined to put into context response sensitivities to frictional processes. We confirm that the Ronne Ice Shelf dramatically affects Atlantic tides but also find that bathymetry in the Hudson Bay system is a critical control. We follow a sequential frictional parameter optimization process and use TPXO9 data-assimilated tidal elevations as a reference solution. From simulated velocities and depths, dissipation within
Keywords:

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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Oceanography Space And Planetary Science
Source:

Journal of Geophysical Research: Oceans, 127(5)
DOI:

https://doi.org/10.1029/2021JC018178
ISSN:

2169-9275;2169-9291;
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4590377 ; Grant no. NA19OAR0220123

Grant no. NA18OAR4590377 ; Grant no. NA19OAR0220123 Less -
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
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CC BY-NC-ND
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Library
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urn:sha256:43338658e3680a5c49e0a7581813b5e50e4f49572c27fca0ab4dc3f25b0b6cf8
Download URL:

https://repository.library.noaa.gov/view/noaa/52646/noaa_52646_DS1.pdf
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