Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica
In the framework of the BRIOS (Bremerhaven Regional Ice OceanSimulations), a three-dimensional tidal model was developed to investigate tidal processes in the southern Weddell Sea. The model is based on the free surface SCRUM (S-Coordinate Primitive Equation Ocean Model), modified to allow for the i...
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Niedersächsische Staats- und Universitätsbibliothek
2002
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ftgbv:oai:gbv.de:opac-de-7:ppn:478665725 2023-05-15T13:48:40+02:00 Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica Ferreira Pereira, Adriene 2002 electronic Elektronische Ressource electronic resource remote Online-Ressource Online Ressource (151 S.) http://webdoc.sub.gwdg.de/ebook/diss/2003/sub-bremen/dissertations/E-Diss233_cover.pdf ger ger Niedersächsische Staats- und Universitätsbibliothek 2002 ftgbv 2016-01-30T09:13:29Z In the framework of the BRIOS (Bremerhaven Regional Ice OceanSimulations), a three-dimensional tidal model was developed to investigate tidal processes in the southern Weddell Sea. The model is based on the free surface SCRUM (S-Coordinate Primitive Equation Ocean Model), modified to allow for the inclusion of the horizontal component of the Earthś rotation vector, the equilibrium tide and ice shelves. Barotropic tides are simulated in a regional two-dimensional (x-y) configuration for the Atlantic Sector of the Southern Ocean. In this investigation, the semidiurnal M2 and S2 and the diurnal K1 and O1 frequencies are considered. For both semidiurnal constituents, maxima amplitudes are found in the southwestern corner of the Filchner-Ronne Ice Shelf (FRIS). Diurnal tides have higher amplitudes at the continental shelf break where they excite continental shelf waves of same period propagating in the along-slope direction. With the full three-dimensional model, baroclinic tidal currents are studied in the inner Weddell Sea, using an orthogonal curvilinear 3D grid. Semidiurnal and diurnal periods are considered, although the emphasis is on the superinertial frequencies at which free propagating internal tides can be generated at the latitude range of the inner Weddell Sea. The vertical structure of tidal currents in the southern continental shelf region and beneath FRIS are described in detail, including their seasonal variability. The model results show that tidal currents contribute significantly to the turbulent mixing at the shelf break of the southern Weddell Sea and beneath FRIS. They also suggest that tides have a direct effect on both water mass formation through mixing and on water mass modification through heat transport to the upper boundary layer, in the ice shelf cavities and by opening leads in the sea ice. Univ., Diss.--Bremen, 2002 Other/Unknown Material Antarc* Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Sea ice Southern Ocean Weddell Sea Georg-August-Universität Göttingen: GOEDOC Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Southern Ocean Weddell Weddell Sea |
institution |
Open Polar |
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Georg-August-Universität Göttingen: GOEDOC |
op_collection_id |
ftgbv |
language |
German |
description |
In the framework of the BRIOS (Bremerhaven Regional Ice OceanSimulations), a three-dimensional tidal model was developed to investigate tidal processes in the southern Weddell Sea. The model is based on the free surface SCRUM (S-Coordinate Primitive Equation Ocean Model), modified to allow for the inclusion of the horizontal component of the Earthś rotation vector, the equilibrium tide and ice shelves. Barotropic tides are simulated in a regional two-dimensional (x-y) configuration for the Atlantic Sector of the Southern Ocean. In this investigation, the semidiurnal M2 and S2 and the diurnal K1 and O1 frequencies are considered. For both semidiurnal constituents, maxima amplitudes are found in the southwestern corner of the Filchner-Ronne Ice Shelf (FRIS). Diurnal tides have higher amplitudes at the continental shelf break where they excite continental shelf waves of same period propagating in the along-slope direction. With the full three-dimensional model, baroclinic tidal currents are studied in the inner Weddell Sea, using an orthogonal curvilinear 3D grid. Semidiurnal and diurnal periods are considered, although the emphasis is on the superinertial frequencies at which free propagating internal tides can be generated at the latitude range of the inner Weddell Sea. The vertical structure of tidal currents in the southern continental shelf region and beneath FRIS are described in detail, including their seasonal variability. The model results show that tidal currents contribute significantly to the turbulent mixing at the shelf break of the southern Weddell Sea and beneath FRIS. They also suggest that tides have a direct effect on both water mass formation through mixing and on water mass modification through heat transport to the upper boundary layer, in the ice shelf cavities and by opening leads in the sea ice. Univ., Diss.--Bremen, 2002 |
author2 |
Ferreira Pereira, Adriene |
title |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
spellingShingle |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
title_short |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
title_full |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
title_fullStr |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
title_full_unstemmed |
Numerical investigation of tidal processes and phenomena in the Weddell Sea, Antarcitica |
title_sort |
numerical investigation of tidal processes and phenomena in the weddell sea, antarcitica |
publisher |
Niedersächsische Staats- und Universitätsbibliothek |
publishDate |
2002 |
url |
http://webdoc.sub.gwdg.de/ebook/diss/2003/sub-bremen/dissertations/E-Diss233_cover.pdf |
long_lat |
ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
geographic |
Ronne Ice Shelf Southern Ocean Weddell Weddell Sea |
geographic_facet |
Ronne Ice Shelf Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Sea ice Southern Ocean Weddell Sea |
_version_ |
1766249563908210688 |