Evidence of multidecadal salinity variability in the eastern tropical North Atlantic
[1] 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 rea...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.590.2343 2023-05-15T17:25:39+02:00 Evidence of multidecadal salinity variability in the eastern tropical North Atlantic Christopher S. Moses Peter K. Swart Brad E. Rosenheim The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.2343 http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.2343 http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf text ftciteseerx 2016-01-08T13:29:10Z [1] 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 multidecadal 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 practical salinity units (psu) between about 1950 and 1990. Rather than a monotonic secular increase, as indicated by some instrumental records, the preinstrumental coral proxy records presented here suggest that salinity in the tropical North Atlantic is periodic on a decadal to multidecadal scale. Text North Atlantic North Atlantic oscillation Unknown |
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ftciteseerx |
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English |
description |
[1] 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 multidecadal 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 practical salinity units (psu) between about 1950 and 1990. Rather than a monotonic secular increase, as indicated by some instrumental records, the preinstrumental coral proxy records presented here suggest that salinity in the tropical North Atlantic is periodic on a decadal to multidecadal scale. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Christopher S. Moses Peter K. Swart Brad E. Rosenheim |
spellingShingle |
Christopher S. Moses Peter K. Swart Brad E. Rosenheim Evidence of multidecadal salinity variability in the eastern tropical North Atlantic |
author_facet |
Christopher S. Moses Peter K. Swart Brad E. Rosenheim |
author_sort |
Christopher S. Moses |
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 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.2343 http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.2343 http://mgg.rsmas.miami.edu/faculty/pswart/2005PA001257.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766117135155724288 |