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Record #167698:
Links between salinity variation in the Caribbean and North Atlantic thermohaline circulation / Matthew W. Schmidt, Howard J. Spero, David W. Lea.
Title: | Links between salinity variation in the Caribbean and North Atlantic thermohaline circulation / Matthew W. Schmidt, Howard J. Spero, David W. Lea. |
Author(s): | Schmidt, Matthew W. Spero, Howard J. Lea, David W. |
Date: | 2004. |
In: | Nature. (2004.), Vol. 428(6979) (2004) |
Abstract: | Analyses two Caribbean sea sediment cores, combining Mg/Ca palaeothermometry with measurements of oxygen isotopes in foraminiferal calcite to reconstruct tropical Atlantic surface salinity during last glacial cycle. Notes that strength of North Atlantic thermohaline circulation, variations in which have been linked to rapid climate changes during last glacial cycle, depends on supply of warm, salty water from further south. Finds Caribbean salinity oscillated, covarying with strength of North Atlantic Deep Water formation, decreasing abruptly at initiation of Bølling/Allerød warm interval 14.6 kyr ago. Suggests advection of excess salt from Caribbean, and possibly Indian Ocean, into North Atlantic amplified thermohaline circulation (countering effects of North Atlantic surface warming, sea-ice retreat and deglaciation) and contributed to high-latitude warming in this period. |
Notes: | Nature. Vol. 428(6979) :160-163 (2004). |
Keywords: | 551.46 -- Oceanography, physical. 551.352/.353 -- Marine sediments, deep sea. 551.461.8 -- Palaeo-oceanography. 551.465 -- Oceanography, dynamics. 551.583.3 -- Climatic changes, Quaternary. 551.465.5 -- Ocean currents. 551.465.45 -- Water masses. 551.465.7 -- Oceanography, energy budget. 546.21 -- Oxygen. 54.027 -- Isotope analysis. 593.12 -- Foraminifera and amoebozoa. C -- Oceanography, hydrography and hydrology. (261) -- Atlantic Ocean. (*61) -- North Atlantic Ocean. (267) -- Indian Ocean. |
SPRI record no.: | 167698 |
LDR 02350naa#a2200000#a#4500 001 SPRI-167698 005 20240328191800.0 007 ta 008 240328s2004####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-167698 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aSchmidt, Matthew W. 245 10 ‡aLinks between salinity variation in the Caribbean and North Atlantic thermohaline circulation /‡cMatthew W. Schmidt, Howard J. Spero, David W. Lea. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2004. 300 ## ‡ap. 160-163 :‡bdiags. 500 ## ‡aNature. Vol. 428(6979) :160-163 (2004). 520 3# ‡aAnalyses two Caribbean sea sediment cores, combining Mg/Ca palaeothermometry with measurements of oxygen isotopes in foraminiferal calcite to reconstruct tropical Atlantic surface salinity during last glacial cycle. Notes that strength of North Atlantic thermohaline circulation, variations in which have been linked to rapid climate changes during last glacial cycle, depends on supply of warm, salty water from further south. Finds Caribbean salinity oscillated, covarying with strength of North Atlantic Deep Water formation, decreasing abruptly at initiation of Bølling/Allerød warm interval 14.6 kyr ago. Suggests advection of excess salt from Caribbean, and possibly Indian Ocean, into North Atlantic amplified thermohaline circulation (countering effects of North Atlantic surface warming, sea-ice retreat and deglaciation) and contributed to high-latitude warming in this period. 530 ## ‡aAlso issued online ‡uurn:doi:10.1038/nature02346‡uhttps://dx.doi.org/10.1038/nature02346 650 07 ‡a551.46 -- Oceanography, physical.‡2udc 650 07 ‡a551.352/.353 -- Marine sediments, deep sea.‡2udc 650 07 ‡a551.461.8 -- Palaeo-oceanography.‡2udc 650 07 ‡a551.465 -- Oceanography, dynamics.‡2udc 650 07 ‡a551.583.3 -- Climatic changes, Quaternary.‡2udc 650 07 ‡a551.465.5 -- Ocean currents.‡2udc 650 07 ‡a551.465.45 -- Water masses.‡2udc 650 07 ‡a551.465.7 -- Oceanography, energy budget.‡2udc 650 07 ‡a546.21 -- Oxygen.‡2udc 650 07 ‡a54.027 -- Isotope analysis.‡2udc 650 07 ‡a593.12 -- Foraminifera and amoebozoa.‡2udc 650 07 ‡aC -- Oceanography, hydrography and hydrology.‡2local 651 #7 ‡a(261) -- Atlantic Ocean.‡2udc 651 #7 ‡a(*61) -- North Atlantic Ocean.‡2udc 651 #7 ‡a(267) -- Indian Ocean.‡2udc 700 1# ‡aSpero, Howard J. 700 1# ‡aLea, David W. 773 0# ‡7nnas ‡tNature. ‡gVol. 428(6979) (2004) ‡wSPRI-1046 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328