Reconstructing the Ocean's Interior from Surface Data
A new method is proposed for extrapolating subsurface velocity and density fields from sea surface density and sea surface height (SSH). In this, the surface density is linked to the subsurface fields via the surface quasigeostrophic (SQG) formalism, as proposed in several recent papers. The subsurf...
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ftmit:oai:dspace.mit.edu:1721.1/87786 2023-06-11T04:14:44+02:00 Reconstructing the Ocean's Interior from Surface Data Wang, Jinbo LaCasce, Joseph H. McClean, Julie L. Mahadevan, Amala Flierl, Glenn Richard Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Flierl, Glenn Richard Mahadevan, Amala 2013-03 application/pdf http://hdl.handle.net/1721.1/87786 en_US eng American Meteorological Society http://dx.doi.org/10.1175/jpo-d-12-0204.1 Journal of Physical Oceanography 0022-3670 1520-0485 http://hdl.handle.net/1721.1/87786 Wang, Jinbo, Glenn R. Flierl, Joseph H. LaCasce, Julie L. McClean, and Amala Mahadevan. “Reconstructing the Ocean’s Interior from Surface Data.” J. Phys. Oceanogr. 43, no. 8 (August 2013): 1611–1626. © 2013 American Meteorological Society orcid:0000-0003-3589-5249 orcid:0000-0002-7522-4100 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Meteorological Society Article http://purl.org/eprint/type/JournalArticle 2013 ftmit https://doi.org/10.1175/jpo-d-12-0204.1 2023-05-29T08:21:06Z A new method is proposed for extrapolating subsurface velocity and density fields from sea surface density and sea surface height (SSH). In this, the surface density is linked to the subsurface fields via the surface quasigeostrophic (SQG) formalism, as proposed in several recent papers. The subsurface field is augmented by the addition of the barotropic and first baroclinic modes, whose amplitudes are determined by matching to the sea surface height (pressure), after subtracting the SQG contribution. An additional constraint is that the bottom pressure anomaly vanishes. The method is tested for three regions in the North Atlantic using data from a high-resolution numerical simulation. The decomposition yields strikingly realistic subsurface fields. It is particularly successful in energetic regions like the Gulf Stream extension and at high latitudes where the mixed layer is deep, but it also works in less energetic eastern subtropics. The demonstration highlights the possibility of reconstructing three-dimensional oceanic flows using a combination of satellite fields, for example, sea surface temperature (SST) and SSH, and sparse (or climatological) estimates of the regional depth-resolved density. The method could be further elaborated to integrate additional subsurface information, such as mooring measurements. United States. National Aeronautics and Space Administration (NNX12AD47G) National Science Foundation (U.S.) (OCE 0928617) National Science Foundation (U.S.) (OCE-0752346) Article in Journal/Newspaper North Atlantic DSpace@MIT (Massachusetts Institute of Technology) Journal of Physical Oceanography 43 8 1611 1626 |
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Open Polar |
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DSpace@MIT (Massachusetts Institute of Technology) |
op_collection_id |
ftmit |
language |
English |
description |
A new method is proposed for extrapolating subsurface velocity and density fields from sea surface density and sea surface height (SSH). In this, the surface density is linked to the subsurface fields via the surface quasigeostrophic (SQG) formalism, as proposed in several recent papers. The subsurface field is augmented by the addition of the barotropic and first baroclinic modes, whose amplitudes are determined by matching to the sea surface height (pressure), after subtracting the SQG contribution. An additional constraint is that the bottom pressure anomaly vanishes. The method is tested for three regions in the North Atlantic using data from a high-resolution numerical simulation. The decomposition yields strikingly realistic subsurface fields. It is particularly successful in energetic regions like the Gulf Stream extension and at high latitudes where the mixed layer is deep, but it also works in less energetic eastern subtropics. The demonstration highlights the possibility of reconstructing three-dimensional oceanic flows using a combination of satellite fields, for example, sea surface temperature (SST) and SSH, and sparse (or climatological) estimates of the regional depth-resolved density. The method could be further elaborated to integrate additional subsurface information, such as mooring measurements. United States. National Aeronautics and Space Administration (NNX12AD47G) National Science Foundation (U.S.) (OCE 0928617) National Science Foundation (U.S.) (OCE-0752346) |
author2 |
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Flierl, Glenn Richard Mahadevan, Amala |
format |
Article in Journal/Newspaper |
author |
Wang, Jinbo LaCasce, Joseph H. McClean, Julie L. Mahadevan, Amala Flierl, Glenn Richard |
spellingShingle |
Wang, Jinbo LaCasce, Joseph H. McClean, Julie L. Mahadevan, Amala Flierl, Glenn Richard Reconstructing the Ocean's Interior from Surface Data |
author_facet |
Wang, Jinbo LaCasce, Joseph H. McClean, Julie L. Mahadevan, Amala Flierl, Glenn Richard |
author_sort |
Wang, Jinbo |
title |
Reconstructing the Ocean's Interior from Surface Data |
title_short |
Reconstructing the Ocean's Interior from Surface Data |
title_full |
Reconstructing the Ocean's Interior from Surface Data |
title_fullStr |
Reconstructing the Ocean's Interior from Surface Data |
title_full_unstemmed |
Reconstructing the Ocean's Interior from Surface Data |
title_sort |
reconstructing the ocean's interior from surface data |
publisher |
American Meteorological Society |
publishDate |
2013 |
url |
http://hdl.handle.net/1721.1/87786 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
American Meteorological Society |
op_relation |
http://dx.doi.org/10.1175/jpo-d-12-0204.1 Journal of Physical Oceanography 0022-3670 1520-0485 http://hdl.handle.net/1721.1/87786 Wang, Jinbo, Glenn R. Flierl, Joseph H. LaCasce, Julie L. McClean, and Amala Mahadevan. “Reconstructing the Ocean’s Interior from Surface Data.” J. Phys. Oceanogr. 43, no. 8 (August 2013): 1611–1626. © 2013 American Meteorological Society orcid:0000-0003-3589-5249 orcid:0000-0002-7522-4100 |
op_rights |
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
op_doi |
https://doi.org/10.1175/jpo-d-12-0204.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
43 |
container_issue |
8 |
container_start_page |
1611 |
op_container_end_page |
1626 |
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1768370988020400128 |