Evidence of multidecadal salinity variability in the eastern tropical North Atlantic
Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 21 (2006): PA3010, doi:10.1029/2005PA001257. Ocean circulation and global cli...
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Format: | Article in Journal/Newspaper |
Language: | English |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/1218 2023-05-15T17:25:35+02:00 Evidence of multidecadal salinity variability in the eastern tropical North Atlantic Moses, Christopher S. Swart, Peter K. Rosenheim, Brad E. 2006-08-17 application/pdf https://hdl.handle.net/1912/1218 en_US eng American Geophysical Union https://doi.org/10.1029/2005PA001257 Paleoceanography 21 (2006): PA3010 https://hdl.handle.net/1912/1218 doi:10.1029/2005PA001257 Paleoceanography 21 (2006): PA3010 doi:10.1029/2005PA001257 Salinity Tropical North Atlantic North Atlantic Oscillation Article 2006 ftwhoas https://doi.org/10.1029/2005PA001257 2022-05-28T22:57:08Z Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 21 (2006): PA3010, doi:10.1029/2005PA001257. Ocean circulation and global climate are strongly influenced by seawater density, which is itself controlled by salinity and temperature. Although adequate instrumental sea-surface temperature (SST) records exist for most of the surface oceans over the past 100-150 years, records of salinity really only exist for the last 40-50 years. Here we show that longer proxy records from corals (Siderastrea radians) in the eastern tropical North Atlantic are dominated by multi-decadal variations in salinity which are correlated with the relationship between SST and the North Atlantic Oscillation (NAO) over the course of the 20th century. The data reveal an increase in eastern tropical North Atlantic salinity of +0.5 psu between about 1950-1990. Rather than a monotonic secular increase, as indicated by some instrumental records, the pre-instrumental coral proxy records presented here suggest that salinity in the tropical North Atlantic is periodic on a decadal to multi-decadal scale. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Paleoceanography 21 3 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Salinity Tropical North Atlantic North Atlantic Oscillation |
spellingShingle |
Salinity Tropical North Atlantic North Atlantic Oscillation Moses, Christopher S. Swart, Peter K. Rosenheim, Brad E. Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
topic_facet |
Salinity Tropical North Atlantic North Atlantic Oscillation |
description |
Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 21 (2006): PA3010, doi:10.1029/2005PA001257. Ocean circulation and global climate are strongly influenced by seawater density, which is itself controlled by salinity and temperature. Although adequate instrumental sea-surface temperature (SST) records exist for most of the surface oceans over the past 100-150 years, records of salinity really only exist for the last 40-50 years. Here we show that longer proxy records from corals (Siderastrea radians) in the eastern tropical North Atlantic are dominated by multi-decadal variations in salinity which are correlated with the relationship between SST and the North Atlantic Oscillation (NAO) over the course of the 20th century. The data reveal an increase in eastern tropical North Atlantic salinity of +0.5 psu between about 1950-1990. Rather than a monotonic secular increase, as indicated by some instrumental records, the pre-instrumental coral proxy records presented here suggest that salinity in the tropical North Atlantic is periodic on a decadal to multi-decadal scale. |
format |
Article in Journal/Newspaper |
author |
Moses, Christopher S. Swart, Peter K. Rosenheim, Brad E. |
author_facet |
Moses, Christopher S. Swart, Peter K. Rosenheim, Brad E. |
author_sort |
Moses, Christopher S. |
title |
Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
title_short |
Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
title_full |
Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
title_fullStr |
Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
title_full_unstemmed |
Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
title_sort |
evidence of multidecadal salinity variability in the eastern tropical north atlantic |
publisher |
American Geophysical Union |
publishDate |
2006 |
url |
https://hdl.handle.net/1912/1218 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Paleoceanography 21 (2006): PA3010 doi:10.1029/2005PA001257 |
op_relation |
https://doi.org/10.1029/2005PA001257 Paleoceanography 21 (2006): PA3010 https://hdl.handle.net/1912/1218 doi:10.1029/2005PA001257 |
op_doi |
https://doi.org/10.1029/2005PA001257 |
container_title |
Paleoceanography |
container_volume |
21 |
container_issue |
3 |
_version_ |
1766117054748819456 |