The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates
The Hamburg Ocean Primitive Equation model has undergone significant development in recent years. Most notable is the treatment of horizontal discretisation which has undergone transition from a staggered E-grid to an orthogonal curvilinear C-grid. The treatment of subgridscale mixing has been impro...
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ftunivtasecite:oai:ecite.utas.edu.au:35563 2023-05-15T13:42:40+02:00 The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates Marsland, SJ Haak, H Jungclaus, JH Latif, M Roske, F 2003 https://doi.org/10.1016/S1463-5003(02)00015-X http://ecite.utas.edu.au/35563 en eng Elsevier Science Ltd. http://dx.doi.org/10.1016/S1463-5003(02)00015-X Marsland, SJ and Haak, H and Jungclaus, JH and Latif, M and Roske, F, The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates, Ocean Modelling, 5, (2) pp. 91-127. ISSN 1463-5003 (2003) [Refereed Article] http://ecite.utas.edu.au/35563 Earth Sciences Oceanography Physical oceanography Refereed Article PeerReviewed 2003 ftunivtasecite https://doi.org/10.1016/S1463-5003(02)00015-X 2022-11-07T23:17:07Z The Hamburg Ocean Primitive Equation model has undergone significant development in recent years. Most notable is the treatment of horizontal discretisation which has undergone transition from a staggered E-grid to an orthogonal curvilinear C-grid. The treatment of subgridscale mixing has been improved by the inclusion of a new formulation of bottom boundary layer (BBL) slope convection, an isopycnal diffusion scheme, and a Gent and McWilliams style eddy-induced mixing parameterisation. The model setup described here has a north pole over Greenland and a south pole on the coast of the Weddell Sea. This gives relatively high resolution in the sinking regions associated with the thermohaline circulation. Results are presented from a 450 year climatologically forced integration. The forcing is a product of the German Ocean Model Intercomparison Project and is derived from the European Centre for Medium Range Weather Forecasting reanalysis. The main emphasis is on the model's representation of key quantities that are easily associated with the ocean's role in the global climate system. The global and Atlantic northward poleward heat transports have peaks of 1.43 and 0.84 PW, at and N respectively. The Atlantic meridional overturning streamfunction has a peak of 15.7 Sv in the North Atlantic and an outflow of 11.9 Sv at S. Comparison with a simulation excluding BBL shows that the scheme is responsible for up to a 25% increase in North Atlantic heat transport, with significant improvement of the depths of convection in the Greenland, Labrador and Irminger Seas. Despite the improvements, comparison with observations shows the heat transport still to be too weak. Other outstanding problems include an incorrect Gulf Stream pathway, a too strong Antarctic Circumpolar Current, and a too weak renewal of Antarctic Intermediate Water. Nevertheless, the model has been coupled to the atmospheric GCM ECHAM5 and run successfully for over 250 years without any surface flux corrections. 2002 Elsevier Science Ltd. All rights ... Article in Journal/Newspaper Antarc* Antarctic Greenland North Atlantic North Pole Sea ice South pole South pole Weddell Sea eCite UTAS (University of Tasmania) Antarctic Weddell Sea Greenland Weddell South Pole North Pole Ocean Modelling 5 2 91 127 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Physical oceanography |
spellingShingle |
Earth Sciences Oceanography Physical oceanography Marsland, SJ Haak, H Jungclaus, JH Latif, M Roske, F The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
topic_facet |
Earth Sciences Oceanography Physical oceanography |
description |
The Hamburg Ocean Primitive Equation model has undergone significant development in recent years. Most notable is the treatment of horizontal discretisation which has undergone transition from a staggered E-grid to an orthogonal curvilinear C-grid. The treatment of subgridscale mixing has been improved by the inclusion of a new formulation of bottom boundary layer (BBL) slope convection, an isopycnal diffusion scheme, and a Gent and McWilliams style eddy-induced mixing parameterisation. The model setup described here has a north pole over Greenland and a south pole on the coast of the Weddell Sea. This gives relatively high resolution in the sinking regions associated with the thermohaline circulation. Results are presented from a 450 year climatologically forced integration. The forcing is a product of the German Ocean Model Intercomparison Project and is derived from the European Centre for Medium Range Weather Forecasting reanalysis. The main emphasis is on the model's representation of key quantities that are easily associated with the ocean's role in the global climate system. The global and Atlantic northward poleward heat transports have peaks of 1.43 and 0.84 PW, at and N respectively. The Atlantic meridional overturning streamfunction has a peak of 15.7 Sv in the North Atlantic and an outflow of 11.9 Sv at S. Comparison with a simulation excluding BBL shows that the scheme is responsible for up to a 25% increase in North Atlantic heat transport, with significant improvement of the depths of convection in the Greenland, Labrador and Irminger Seas. Despite the improvements, comparison with observations shows the heat transport still to be too weak. Other outstanding problems include an incorrect Gulf Stream pathway, a too strong Antarctic Circumpolar Current, and a too weak renewal of Antarctic Intermediate Water. Nevertheless, the model has been coupled to the atmospheric GCM ECHAM5 and run successfully for over 250 years without any surface flux corrections. 2002 Elsevier Science Ltd. All rights ... |
format |
Article in Journal/Newspaper |
author |
Marsland, SJ Haak, H Jungclaus, JH Latif, M Roske, F |
author_facet |
Marsland, SJ Haak, H Jungclaus, JH Latif, M Roske, F |
author_sort |
Marsland, SJ |
title |
The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
title_short |
The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
title_full |
The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
title_fullStr |
The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
title_full_unstemmed |
The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates |
title_sort |
max-planck-institute global ocean/sea ice model with orthogonal curvilinear coordinates |
publisher |
Elsevier Science Ltd. |
publishDate |
2003 |
url |
https://doi.org/10.1016/S1463-5003(02)00015-X http://ecite.utas.edu.au/35563 |
geographic |
Antarctic Weddell Sea Greenland Weddell South Pole North Pole |
geographic_facet |
Antarctic Weddell Sea Greenland Weddell South Pole North Pole |
genre |
Antarc* Antarctic Greenland North Atlantic North Pole Sea ice South pole South pole Weddell Sea |
genre_facet |
Antarc* Antarctic Greenland North Atlantic North Pole Sea ice South pole South pole Weddell Sea |
op_relation |
http://dx.doi.org/10.1016/S1463-5003(02)00015-X Marsland, SJ and Haak, H and Jungclaus, JH and Latif, M and Roske, F, The Max-Planck-Institute global ocean/sea ice model with orthogonal curvilinear coordinates, Ocean Modelling, 5, (2) pp. 91-127. ISSN 1463-5003 (2003) [Refereed Article] http://ecite.utas.edu.au/35563 |
op_doi |
https://doi.org/10.1016/S1463-5003(02)00015-X |
container_title |
Ocean Modelling |
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5 |
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91 |
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127 |
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1766171468007211008 |