Observations of Double Diffusive Staircase Edges in the Arctic Ocean
Recent observational studies have provided detailed descriptions of double‐diffusive staircases in the Beaufort Sea, characterized by well‐mixed intrusions between high‐gradient interfaces. These structures result from double‐diffusive convection, occurring when cooler fresh water lies atop the warm...
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2024
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ftmit:oai:dspace.mit.edu:1721.1/154058 2024-05-19T07:33:12+00:00 Observations of Double Diffusive Staircase Edges in the Arctic Ocean Boury, S. Supekar, R. Fine, E. C. Musgrave, R. Mickett, J. B. Voet, G. Odier, P. Peacock, T. MacKinnon, J. A. Alford, M. H. 2024-04-03T20:52:38Z application/pdf https://hdl.handle.net/1721.1/154058 en eng American Geophysical Union 10.1029/2022jc018906 Journal of Geophysical Research: Oceans 2169-9275 2169-9291 https://hdl.handle.net/1721.1/154058 Boury, S., Supekar, R., Fine, E. C., Musgrave, R., Mickett, J. B., Voet, G., et al. (2022). Observations of double diffusive staircase edges in the Arctic Ocean. Journal of Geophysical Research: Oceans, 127, e2022JC018906. 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 Geophysical Union Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography Article http://purl.org/eprint/type/JournalArticle 2024 ftmit 2024-04-23T23:31:33Z Recent observational studies have provided detailed descriptions of double‐diffusive staircases in the Beaufort Sea, characterized by well‐mixed intrusions between high‐gradient interfaces. These structures result from double‐diffusive convection, occurring when cooler fresh water lies atop the warmer saltier Atlantic water layer. In the present study, we investigate the spatial structure of such layers, by analyzing combined high resolution data from a subsurface mooring, a ship‐towed profiling conductivity‐temperature‐depth/ADCP package, and a free‐falling microstructure profiler. At large scale, the modular microstructure profiler data suggest a horizontal “ragged edge” of the layered water masses near the basin boundary. At smaller scales, the mooring data indicate that, in the 300–400 m depth interval, regions of layers abruptly appear. This laterally sharp (of the order of 100 m) interface is advected southwards, as shown by the shallow water integrated mapping system survey conducted nearby. Neither disruption nor formation of layers is directly observed in our data, and we thus interpret our observations as the stable and possibly recent abutment of a layered and an unlayered water masses, now globally advected southwards by a large scale flow. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Beaufort Sea DSpace@MIT (Massachusetts Institute of Technology) |
institution |
Open Polar |
collection |
DSpace@MIT (Massachusetts Institute of Technology) |
op_collection_id |
ftmit |
language |
English |
topic |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
spellingShingle |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography Boury, S. Supekar, R. Fine, E. C. Musgrave, R. Mickett, J. B. Voet, G. Odier, P. Peacock, T. MacKinnon, J. A. Alford, M. H. Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
topic_facet |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
description |
Recent observational studies have provided detailed descriptions of double‐diffusive staircases in the Beaufort Sea, characterized by well‐mixed intrusions between high‐gradient interfaces. These structures result from double‐diffusive convection, occurring when cooler fresh water lies atop the warmer saltier Atlantic water layer. In the present study, we investigate the spatial structure of such layers, by analyzing combined high resolution data from a subsurface mooring, a ship‐towed profiling conductivity‐temperature‐depth/ADCP package, and a free‐falling microstructure profiler. At large scale, the modular microstructure profiler data suggest a horizontal “ragged edge” of the layered water masses near the basin boundary. At smaller scales, the mooring data indicate that, in the 300–400 m depth interval, regions of layers abruptly appear. This laterally sharp (of the order of 100 m) interface is advected southwards, as shown by the shallow water integrated mapping system survey conducted nearby. Neither disruption nor formation of layers is directly observed in our data, and we thus interpret our observations as the stable and possibly recent abutment of a layered and an unlayered water masses, now globally advected southwards by a large scale flow. |
format |
Article in Journal/Newspaper |
author |
Boury, S. Supekar, R. Fine, E. C. Musgrave, R. Mickett, J. B. Voet, G. Odier, P. Peacock, T. MacKinnon, J. A. Alford, M. H. |
author_facet |
Boury, S. Supekar, R. Fine, E. C. Musgrave, R. Mickett, J. B. Voet, G. Odier, P. Peacock, T. MacKinnon, J. A. Alford, M. H. |
author_sort |
Boury, S. |
title |
Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
title_short |
Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
title_full |
Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
title_fullStr |
Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
title_full_unstemmed |
Observations of Double Diffusive Staircase Edges in the Arctic Ocean |
title_sort |
observations of double diffusive staircase edges in the arctic ocean |
publisher |
American Geophysical Union |
publishDate |
2024 |
url |
https://hdl.handle.net/1721.1/154058 |
genre |
Arctic Arctic Arctic Ocean Beaufort Sea |
genre_facet |
Arctic Arctic Arctic Ocean Beaufort Sea |
op_source |
American Geophysical Union |
op_relation |
10.1029/2022jc018906 Journal of Geophysical Research: Oceans 2169-9275 2169-9291 https://hdl.handle.net/1721.1/154058 Boury, S., Supekar, R., Fine, E. C., Musgrave, R., Mickett, J. B., Voet, G., et al. (2022). Observations of double diffusive staircase edges in the Arctic Ocean. Journal of Geophysical Research: Oceans, 127, e2022JC018906. |
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. |
_version_ |
1799471301782405120 |