Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path
Because of its pronounced fresh signature, the properties of the northward-flowing Antarctic Intermediate Water (AAIW) affect the Atlantic Meridional Overturning Circulation. Hence, understanding modifications of AAIW along its path is important. Here, we analyze AAIW changes along its path in the C...
Published in: | Geophysical Research Letters |
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fttudelft:oai:tudelft.nl:uuid:6821983f-9aba-4d3d-9350-8025badea860 2024-04-28T07:57:49+00:00 Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path van der Boog, C.G. (author) Dijkstra, Henk A. (author) Pietrzak, J.D. (author) Katsman, C.A. (author) 2022 http://resolver.tudelft.nl/uuid:6821983f-9aba-4d3d-9350-8025badea860 https://doi.org/10.1029/2021GL095977 en eng http://www.scopus.com/inward/record.url?scp=85125037396&partnerID=8YFLogxK Geophysical Research Letters--0094-8276--06456208-fd35-4a1a-bb03-32af520213ad http://resolver.tudelft.nl/uuid:6821983f-9aba-4d3d-9350-8025badea860 https://doi.org/10.1029/2021GL095977 © 2022 C.G. van der Boog, Henk A. Dijkstra, J.D. Pietrzak, C.A. Katsman background turbulence double diffusion vertical mixing water mass journal article 2022 fttudelft https://doi.org/10.1029/2021GL095977 2024-04-10T00:10:22Z Because of its pronounced fresh signature, the properties of the northward-flowing Antarctic Intermediate Water (AAIW) affect the Atlantic Meridional Overturning Circulation. Hence, understanding modifications of AAIW along its path is important. Here, we analyze AAIW changes along its path in the Caribbean Sea and assess whether vertical fluxes from background turbulence and from double-diffusive mixing in thermohaline staircases can explain these variations. We deduce the occurrence rate of staircases (7%) and estimate the flux ratio (Formula presented.) from Argo float profiles. In combination with vertical fluxes from background turbulence, these values are used in a steady-state advection-diffusion model to estimate the effective diffusivity of salt that arises from double diffusion (Formula presented.). This value for (Formula presented.) is similar to observed values (Schmitt, 2005, https://doi.org/10.1126/science.1108678), implying the observed modification of AAIW in the Caribbean Sea may be attributable primarily to vertical mixing in the region itself. Environmental Fluid Mechanics Article in Journal/Newspaper Antarc* Antarctic Delft University of Technology: Institutional Repository Geophysical Research Letters 49 3 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
background turbulence double diffusion vertical mixing water mass |
spellingShingle |
background turbulence double diffusion vertical mixing water mass van der Boog, C.G. (author) Dijkstra, Henk A. (author) Pietrzak, J.D. (author) Katsman, C.A. (author) Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
topic_facet |
background turbulence double diffusion vertical mixing water mass |
description |
Because of its pronounced fresh signature, the properties of the northward-flowing Antarctic Intermediate Water (AAIW) affect the Atlantic Meridional Overturning Circulation. Hence, understanding modifications of AAIW along its path is important. Here, we analyze AAIW changes along its path in the Caribbean Sea and assess whether vertical fluxes from background turbulence and from double-diffusive mixing in thermohaline staircases can explain these variations. We deduce the occurrence rate of staircases (7%) and estimate the flux ratio (Formula presented.) from Argo float profiles. In combination with vertical fluxes from background turbulence, these values are used in a steady-state advection-diffusion model to estimate the effective diffusivity of salt that arises from double diffusion (Formula presented.). This value for (Formula presented.) is similar to observed values (Schmitt, 2005, https://doi.org/10.1126/science.1108678), implying the observed modification of AAIW in the Caribbean Sea may be attributable primarily to vertical mixing in the region itself. Environmental Fluid Mechanics |
format |
Article in Journal/Newspaper |
author |
van der Boog, C.G. (author) Dijkstra, Henk A. (author) Pietrzak, J.D. (author) Katsman, C.A. (author) |
author_facet |
van der Boog, C.G. (author) Dijkstra, Henk A. (author) Pietrzak, J.D. (author) Katsman, C.A. (author) |
author_sort |
van der Boog, C.G. (author) |
title |
Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
title_short |
Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
title_full |
Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
title_fullStr |
Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
title_full_unstemmed |
Spatial Variations of Antarctic Intermediate Water in the Caribbean Sea Due To Vertical Mixing Along Its Path |
title_sort |
spatial variations of antarctic intermediate water in the caribbean sea due to vertical mixing along its path |
publishDate |
2022 |
url |
http://resolver.tudelft.nl/uuid:6821983f-9aba-4d3d-9350-8025badea860 https://doi.org/10.1029/2021GL095977 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.scopus.com/inward/record.url?scp=85125037396&partnerID=8YFLogxK Geophysical Research Letters--0094-8276--06456208-fd35-4a1a-bb03-32af520213ad http://resolver.tudelft.nl/uuid:6821983f-9aba-4d3d-9350-8025badea860 https://doi.org/10.1029/2021GL095977 |
op_rights |
© 2022 C.G. van der Boog, Henk A. Dijkstra, J.D. Pietrzak, C.A. Katsman |
op_doi |
https://doi.org/10.1029/2021GL095977 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
3 |
_version_ |
1797590388924481536 |