Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability
Author Posting. © American Meteorological Society, 2019. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 32(13), (2019): 3883-3898, doi:10.1175/JCLI-D-18-0735.1. While it...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/24484 2023-05-15T17:05:58+02:00 Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability Li, Feili Lozier, M. Susan Danabasoglu, Gokhan Holliday, Naomi Penny Kwon, Young-Oh Romanou, Anastasia Yeager, Stephen G. Zhang, Rong 2019-07-11 https://hdl.handle.net/1912/24484 unknown American Meteorological Society https://doi.org/10.1175/JCLI-D-18-0735.1 Li, F., Lozier, M. S., Danabasoglu, G., Holliday, N. P., Kwon, Y., Romanou, A., Yeager, S. G., & Zhang, R. (2019). Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability. Journal of Climate, 32(13), 3883-3898. https://hdl.handle.net/1912/24484 doi:10.1175/JCLI-D-18-0735.1 Li, F., Lozier, M. S., Danabasoglu, G., Holliday, N. P., Kwon, Y., Romanou, A., Yeager, S. G., & Zhang, R. (2019). Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability. Journal of Climate, 32(13), 3883-3898. doi:10.1175/JCLI-D-18-0735.1 North Atlantic Ocean Deep convection Meridional overturning circulation Model comparison Article 2019 ftwhoas https://doi.org/10.1175/JCLI-D-18-0735.1 2022-05-28T23:03:12Z Author Posting. © American Meteorological Society, 2019. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 32(13), (2019): 3883-3898, doi:10.1175/JCLI-D-18-0735.1. While it has generally been understood that the production of Labrador Sea Water (LSW) impacts the Atlantic meridional overturning circulation (MOC), this relationship has not been explored extensively or validated against observations. To explore this relationship, a suite of global ocean–sea ice models forced by the same interannually varying atmospheric dataset, varying in resolution from non-eddy-permitting to eddy-permitting (1°–1/4°), is analyzed to investigate the local and downstream relationships between LSW formation and the MOC on interannual to decadal time scales. While all models display a strong relationship between changes in the LSW volume and the MOC in the Labrador Sea, this relationship degrades considerably downstream of the Labrador Sea. In particular, there is no consistent pattern among the models in the North Atlantic subtropical basin over interannual to decadal time scales. Furthermore, the strong response of the MOC in the Labrador Sea to LSW volume changes in that basin may be biased by the overproduction of LSW in many models compared to observations. This analysis shows that changes in LSW volume in the Labrador Sea cannot be clearly and consistently linked to a coherent MOC response across latitudes over interannual to decadal time scales in ocean hindcast simulations of the last half century. Similarly, no coherent relationships are identified between the MOC and the Labrador Sea mixed layer depth or the density of newly formed LSW across latitudes or across models over interannual to decadal time scales. FL and MSL are thankful for the financial support from the National Science Foundation (NSF) Physical Oceanography Program (NSF-OCE-12-59102, NSF-OCE-12-59103). The NCAR contribution was ... Article in Journal/Newspaper Labrador Sea North Atlantic Sea ice Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Journal of Climate 32 13 3883 3898 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
North Atlantic Ocean Deep convection Meridional overturning circulation Model comparison |
spellingShingle |
North Atlantic Ocean Deep convection Meridional overturning circulation Model comparison Li, Feili Lozier, M. Susan Danabasoglu, Gokhan Holliday, Naomi Penny Kwon, Young-Oh Romanou, Anastasia Yeager, Stephen G. Zhang, Rong Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
topic_facet |
North Atlantic Ocean Deep convection Meridional overturning circulation Model comparison |
description |
Author Posting. © American Meteorological Society, 2019. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 32(13), (2019): 3883-3898, doi:10.1175/JCLI-D-18-0735.1. While it has generally been understood that the production of Labrador Sea Water (LSW) impacts the Atlantic meridional overturning circulation (MOC), this relationship has not been explored extensively or validated against observations. To explore this relationship, a suite of global ocean–sea ice models forced by the same interannually varying atmospheric dataset, varying in resolution from non-eddy-permitting to eddy-permitting (1°–1/4°), is analyzed to investigate the local and downstream relationships between LSW formation and the MOC on interannual to decadal time scales. While all models display a strong relationship between changes in the LSW volume and the MOC in the Labrador Sea, this relationship degrades considerably downstream of the Labrador Sea. In particular, there is no consistent pattern among the models in the North Atlantic subtropical basin over interannual to decadal time scales. Furthermore, the strong response of the MOC in the Labrador Sea to LSW volume changes in that basin may be biased by the overproduction of LSW in many models compared to observations. This analysis shows that changes in LSW volume in the Labrador Sea cannot be clearly and consistently linked to a coherent MOC response across latitudes over interannual to decadal time scales in ocean hindcast simulations of the last half century. Similarly, no coherent relationships are identified between the MOC and the Labrador Sea mixed layer depth or the density of newly formed LSW across latitudes or across models over interannual to decadal time scales. FL and MSL are thankful for the financial support from the National Science Foundation (NSF) Physical Oceanography Program (NSF-OCE-12-59102, NSF-OCE-12-59103). The NCAR contribution was ... |
format |
Article in Journal/Newspaper |
author |
Li, Feili Lozier, M. Susan Danabasoglu, Gokhan Holliday, Naomi Penny Kwon, Young-Oh Romanou, Anastasia Yeager, Stephen G. Zhang, Rong |
author_facet |
Li, Feili Lozier, M. Susan Danabasoglu, Gokhan Holliday, Naomi Penny Kwon, Young-Oh Romanou, Anastasia Yeager, Stephen G. Zhang, Rong |
author_sort |
Li, Feili |
title |
Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
title_short |
Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
title_full |
Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
title_fullStr |
Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
title_full_unstemmed |
Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability |
title_sort |
local and downstream relationships between labrador sea water volume and north atlantic meridional overturning circulation variability |
publisher |
American Meteorological Society |
publishDate |
2019 |
url |
https://hdl.handle.net/1912/24484 |
genre |
Labrador Sea North Atlantic Sea ice |
genre_facet |
Labrador Sea North Atlantic Sea ice |
op_source |
Li, F., Lozier, M. S., Danabasoglu, G., Holliday, N. P., Kwon, Y., Romanou, A., Yeager, S. G., & Zhang, R. (2019). Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability. Journal of Climate, 32(13), 3883-3898. doi:10.1175/JCLI-D-18-0735.1 |
op_relation |
https://doi.org/10.1175/JCLI-D-18-0735.1 Li, F., Lozier, M. S., Danabasoglu, G., Holliday, N. P., Kwon, Y., Romanou, A., Yeager, S. G., & Zhang, R. (2019). Local and downstream relationships between Labrador Sea Water volume and North Atlantic meridional overturning circulation variability. Journal of Climate, 32(13), 3883-3898. https://hdl.handle.net/1912/24484 doi:10.1175/JCLI-D-18-0735.1 |
op_doi |
https://doi.org/10.1175/JCLI-D-18-0735.1 |
container_title |
Journal of Climate |
container_volume |
32 |
container_issue |
13 |
container_start_page |
3883 |
op_container_end_page |
3898 |
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1766060850787909632 |