Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view
The high–low latitude climate interplay during the Plio–Pleistocene global cooling is not yet well understood. Insight on the Mediterranean region can provide some clues about past significant climate changes since the basin reflects the climate dynamics of both high-latitude and low-latitude region...
Published in: | Earth and Planetary Science Letters |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier Science Limited
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/2122/8192 https://doi.org/10.1016/j.epsl.2011.12.020 |
id |
ftingv:oai:www.earth-prints.org:2122/8192 |
---|---|
record_format |
openpolar |
spelling |
ftingv:oai:www.earth-prints.org:2122/8192 2023-05-15T17:32:07+02:00 Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view Colleoni, F. Masina, S. Negri, A. Marzocchi, A. Colleoni, F.; Centro Euro-Mediterraneo sui Cambiamenti Climatici Masina, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Negri, A.; Universita' Politecnica delle Marche Marzocchi, A.; Centro Euro-Mediterraneo sui Cambiamenti Climatici Centro Euro-Mediterraneo sui Cambiamenti Climatici Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Universita' Politecnica delle Marche 2012-02 http://hdl.handle.net/2122/8192 https://doi.org/10.1016/j.epsl.2011.12.020 en eng Elsevier Science Limited Earth and planetary science letters /319-320 (2012) 0012-821X 1385-013X http://hdl.handle.net/2122/8192 doi:10.1016/j.epsl.2011.12.020 reserved Plio–Pleistocene climate transition Mediterranean surface water high–low-latitude interplay spectral analysis sapropels 02. Cryosphere::02.03. Ice cores::02.03.05. Paleoclimate 03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 05. General::05.01. Computational geophysics::05.01.01. Data processing article 2012 ftingv https://doi.org/10.1016/j.epsl.2011.12.020 2022-07-29T06:06:20Z The high–low latitude climate interplay during the Plio–Pleistocene global cooling is not yet well understood. Insight on the Mediterranean region can provide some clues about past significant climate changes since the basin reflects the climate dynamics of both high-latitude and low-latitude regions, being connected to the North Atlantic and subjected to monsoon influence. Here we shade light on this connection problem by per- forming a spectral analysis on an Eastern Mediterranean stack of planktonic records spanning the last 5 Ma and by further comparing it to North Atlantic and Pacific deep- and surface-water records. Our main conclu- sion is that the Mediterranean detected the main global climate transitions over the last 5 Myr although sapropel depositions indicate that it remained influenced by the African summer monsoon during the whole interval. Our analysis reveals that until 2.2 Ma the Mediterranean planktonic record is driven by re- gional processes dominated by precession. The progressive emergence of the 41-kyr frequency in the Medi- terranean records around 2.8 Ma suggests that, since this date, the Mediterranean was more and more affected by the high-latitude climate dynamics forcing than by the low-latitude one. Moreover, during the ongoing Plio–Pleistocene cooling, the 41-kyr frequency signal in the Mediterranean records anticipated high-latitude deep-water response to the intensification of the Northern Hemisphere Glaciations (NHG) and lagged the signal in tropical latitudes. Finally, toward 1.2 Ma the results suggest that the progressive shift from the 41-kyr to the 100-kyr frequency was led by the northern high latitudes. Overall, our results confirm that the Mediterranean is an ideal site to study the interplay between high and low latitude climates. Published 35-44 3.7. Dinamica del clima e dell'oceano JCR Journal reserved Article in Journal/Newspaper North Atlantic Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Pacific Sion ENVELOPE(13.758,13.758,66.844,66.844) Earth and Planetary Science Letters 319-320 35 44 |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Plio–Pleistocene climate transition Mediterranean surface water high–low-latitude interplay spectral analysis sapropels 02. Cryosphere::02.03. Ice cores::02.03.05. Paleoclimate 03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 05. General::05.01. Computational geophysics::05.01.01. Data processing |
spellingShingle |
Plio–Pleistocene climate transition Mediterranean surface water high–low-latitude interplay spectral analysis sapropels 02. Cryosphere::02.03. Ice cores::02.03.05. Paleoclimate 03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 05. General::05.01. Computational geophysics::05.01.01. Data processing Colleoni, F. Masina, S. Negri, A. Marzocchi, A. Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
topic_facet |
Plio–Pleistocene climate transition Mediterranean surface water high–low-latitude interplay spectral analysis sapropels 02. Cryosphere::02.03. Ice cores::02.03.05. Paleoclimate 03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 05. General::05.01. Computational geophysics::05.01.01. Data processing |
description |
The high–low latitude climate interplay during the Plio–Pleistocene global cooling is not yet well understood. Insight on the Mediterranean region can provide some clues about past significant climate changes since the basin reflects the climate dynamics of both high-latitude and low-latitude regions, being connected to the North Atlantic and subjected to monsoon influence. Here we shade light on this connection problem by per- forming a spectral analysis on an Eastern Mediterranean stack of planktonic records spanning the last 5 Ma and by further comparing it to North Atlantic and Pacific deep- and surface-water records. Our main conclu- sion is that the Mediterranean detected the main global climate transitions over the last 5 Myr although sapropel depositions indicate that it remained influenced by the African summer monsoon during the whole interval. Our analysis reveals that until 2.2 Ma the Mediterranean planktonic record is driven by re- gional processes dominated by precession. The progressive emergence of the 41-kyr frequency in the Medi- terranean records around 2.8 Ma suggests that, since this date, the Mediterranean was more and more affected by the high-latitude climate dynamics forcing than by the low-latitude one. Moreover, during the ongoing Plio–Pleistocene cooling, the 41-kyr frequency signal in the Mediterranean records anticipated high-latitude deep-water response to the intensification of the Northern Hemisphere Glaciations (NHG) and lagged the signal in tropical latitudes. Finally, toward 1.2 Ma the results suggest that the progressive shift from the 41-kyr to the 100-kyr frequency was led by the northern high latitudes. Overall, our results confirm that the Mediterranean is an ideal site to study the interplay between high and low latitude climates. Published 35-44 3.7. Dinamica del clima e dell'oceano JCR Journal reserved |
author2 |
Colleoni, F.; Centro Euro-Mediterraneo sui Cambiamenti Climatici Masina, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Negri, A.; Universita' Politecnica delle Marche Marzocchi, A.; Centro Euro-Mediterraneo sui Cambiamenti Climatici Centro Euro-Mediterraneo sui Cambiamenti Climatici Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Universita' Politecnica delle Marche |
format |
Article in Journal/Newspaper |
author |
Colleoni, F. Masina, S. Negri, A. Marzocchi, A. |
author_facet |
Colleoni, F. Masina, S. Negri, A. Marzocchi, A. |
author_sort |
Colleoni, F. |
title |
Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
title_short |
Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
title_full |
Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
title_fullStr |
Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
title_full_unstemmed |
Plio-Pliocene high-low latitude climate interplay: a Mediterranean point of view |
title_sort |
plio-pliocene high-low latitude climate interplay: a mediterranean point of view |
publisher |
Elsevier Science Limited |
publishDate |
2012 |
url |
http://hdl.handle.net/2122/8192 https://doi.org/10.1016/j.epsl.2011.12.020 |
long_lat |
ENVELOPE(13.758,13.758,66.844,66.844) |
geographic |
Pacific Sion |
geographic_facet |
Pacific Sion |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Earth and planetary science letters /319-320 (2012) 0012-821X 1385-013X http://hdl.handle.net/2122/8192 doi:10.1016/j.epsl.2011.12.020 |
op_rights |
reserved |
op_doi |
https://doi.org/10.1016/j.epsl.2011.12.020 |
container_title |
Earth and Planetary Science Letters |
container_volume |
319-320 |
container_start_page |
35 |
op_container_end_page |
44 |
_version_ |
1766130068718878720 |