Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes
Sea surface temperature (SST) profiles over the last 25 kyr derived from alkenone measurements are studied in four cores from a W-E latitudinal transect encompassing the Gulf of Cadiz (Atlantic Ocean), the Alboran Sea, and the southern Tyrrhenian Sea (western Mediterranean). The results document the...
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ftuabarcelonapb:oai:ddd.uab.cat:25439 2023-05-15T17:29:22+02:00 Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes Cacho, Isabel Grimalt, Joan Canals Artigas, Miquel Shaffi, Laura Shackleton, Nick J. Schönfeld, Joachim Zahn, Rainer 2001 application/pdf https://ddd.uab.cat/record/25439 eng eng Paleoceanography Vol. 16, Issue 1 (January 2001), p. 40-52 https://ddd.uab.cat/record/25439 urn:10.1029/2000PA000502 urn:oai:ddd.uab.cat:25439 urn:recercauab:ARE-38175 urn:articleid:19449186v16n1p40 urn:scopus_id:0035065442 urn:wos_id:000166869900004 urn:altmetric_id:8312552 urn:oai:egreta.uab.cat:publications/5287a821-3baf-4576-9b7c-d34ffa075fc7 open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Climate dynamics Hydroclimatology Ocean/atmosphere interactions Article 2001 ftuabarcelonapb 2023-03-08T00:51:44Z Sea surface temperature (SST) profiles over the last 25 kyr derived from alkenone measurements are studied in four cores from a W-E latitudinal transect encompassing the Gulf of Cadiz (Atlantic Ocean), the Alboran Sea, and the southern Tyrrhenian Sea (western Mediterranean). The results document the sensitivity of the Mediterranean region to the short climatic changes of the North Atlantic Ocean, particularly those involving the latitudinal position of the polar front. The amplitude of the SST oscillations increases toward the Tyrrhenian Sea, indicating an amplification effect of the Atlantic signal by the climatic regime of the Mediterranean region. All studied cores show a shorter cooling phase (700 years) for the Younger Dryas (YD) than that observed in the North Atlantic region (1200 years). This time diachroneity is related to an intra-YD climatic change documented in the European continent. Minor oscillations in the southward displacement of the North Atlantic polar front may also have driven this early warming in the studied area. During the Holocene a regional diachroneity propagating west to east is observed for the SST maxima, 11.5-10.2 kyr B.P. in the Gulf of Cadiz, 10-9 kyr B.P. in the Alboran Sea, and 8.9-8.4 kyr B.P. in the Thyrrenian Sea. A general cooling trend from these SST maxima to present day is observed during this stage, which is marked by short cooling oscillations with a periodicity of 730±40 years and its harmonics. Article in Journal/Newspaper North Atlantic Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Paleoceanography 16 1 40 52 |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Climate dynamics Hydroclimatology Ocean/atmosphere interactions |
spellingShingle |
Climate dynamics Hydroclimatology Ocean/atmosphere interactions Cacho, Isabel Grimalt, Joan Canals Artigas, Miquel Shaffi, Laura Shackleton, Nick J. Schönfeld, Joachim Zahn, Rainer Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
topic_facet |
Climate dynamics Hydroclimatology Ocean/atmosphere interactions |
description |
Sea surface temperature (SST) profiles over the last 25 kyr derived from alkenone measurements are studied in four cores from a W-E latitudinal transect encompassing the Gulf of Cadiz (Atlantic Ocean), the Alboran Sea, and the southern Tyrrhenian Sea (western Mediterranean). The results document the sensitivity of the Mediterranean region to the short climatic changes of the North Atlantic Ocean, particularly those involving the latitudinal position of the polar front. The amplitude of the SST oscillations increases toward the Tyrrhenian Sea, indicating an amplification effect of the Atlantic signal by the climatic regime of the Mediterranean region. All studied cores show a shorter cooling phase (700 years) for the Younger Dryas (YD) than that observed in the North Atlantic region (1200 years). This time diachroneity is related to an intra-YD climatic change documented in the European continent. Minor oscillations in the southward displacement of the North Atlantic polar front may also have driven this early warming in the studied area. During the Holocene a regional diachroneity propagating west to east is observed for the SST maxima, 11.5-10.2 kyr B.P. in the Gulf of Cadiz, 10-9 kyr B.P. in the Alboran Sea, and 8.9-8.4 kyr B.P. in the Thyrrenian Sea. A general cooling trend from these SST maxima to present day is observed during this stage, which is marked by short cooling oscillations with a periodicity of 730±40 years and its harmonics. |
format |
Article in Journal/Newspaper |
author |
Cacho, Isabel Grimalt, Joan Canals Artigas, Miquel Shaffi, Laura Shackleton, Nick J. Schönfeld, Joachim Zahn, Rainer |
author_facet |
Cacho, Isabel Grimalt, Joan Canals Artigas, Miquel Shaffi, Laura Shackleton, Nick J. Schönfeld, Joachim Zahn, Rainer |
author_sort |
Cacho, Isabel |
title |
Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
title_short |
Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
title_full |
Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
title_fullStr |
Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
title_full_unstemmed |
Variability of the western Mediterranean Sea surface temperature during the last 25,000 years and its connection with the Northern Hemisphere climatic changes |
title_sort |
variability of the western mediterranean sea surface temperature during the last 25,000 years and its connection with the northern hemisphere climatic changes |
publishDate |
2001 |
url |
https://ddd.uab.cat/record/25439 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Paleoceanography Vol. 16, Issue 1 (January 2001), p. 40-52 https://ddd.uab.cat/record/25439 urn:10.1029/2000PA000502 urn:oai:ddd.uab.cat:25439 urn:recercauab:ARE-38175 urn:articleid:19449186v16n1p40 urn:scopus_id:0035065442 urn:wos_id:000166869900004 urn:altmetric_id:8312552 urn:oai:egreta.uab.cat:publications/5287a821-3baf-4576-9b7c-d34ffa075fc7 |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
container_title |
Paleoceanography |
container_volume |
16 |
container_issue |
1 |
container_start_page |
40 |
op_container_end_page |
52 |
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1766123274565058560 |