Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs
4 pages, 4 figures The present study describes the first sea surface temperature (SST) reconstruction in the southeastern Subtropical Pacific Ocean, offshore the South American coast. The obtained record encompasses the last 400 kyr and follows the characteristic glacial/interglacial pattern defined...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
American Geophysical Union
2001
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/244107 https://doi.org/10.1029/2000GL012024 |
id |
ftcsic:oai:digital.csic.es:10261/244107 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/244107 2024-02-11T10:08:37+01:00 Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs Calvo, Eva María Pelejero, Carles Herguera, Juan C. Palanques, Albert Grimalt, Joan O. 2001-06 http://hdl.handle.net/10261/244107 https://doi.org/10.1029/2000GL012024 unknown American Geophysical Union Publisher's version https://doi.org/10.1029/2000GL012024 Sí issn: 0094-8276 e-issn: 1944-8007 Geophysical Research Letters 28(12): 2481-2484 (2001) http://hdl.handle.net/10261/244107 doi:10.1029/2000GL012024 open artículo http://purl.org/coar/resource_type/c_6501 2001 ftcsic https://doi.org/10.1029/2000GL012024 2024-01-16T11:10:14Z 4 pages, 4 figures The present study describes the first sea surface temperature (SST) reconstruction in the southeastern Subtropical Pacific Ocean, offshore the South American coast. The obtained record encompasses the last 400 kyr and follows the characteristic glacial/interglacial pattern defined by global ice volume. However, SST leads the δ18O isotopic record reflecting the role of the low latitudes areas in driving climate change. SST in the Holocene is lower by about 0.5-0.8°C than maximal SST in stages 5e, 7, 9 and 11. SST in stages 2-4 is lower by about 0.6-1.3°C than minimal SST in stages 6, 8 and 10. These features are similar to SST records obtained in the South Atlantic Ocean pointing to a general inter-basinal behaviour at these low latitudes. For most of the record, the observed long-term SST evolution is well correlated with the orbital parameter of eccentricity, which modulates the insolation at low latitudes. However, at low eccentricity values (Stages 11 - 9 and Termination I), SST is driven by obliquity, exhibiting a dependence from high latitude climatic responses Financial support from the TEMPUS EU project (ENV4-CT97-0564) and CYCIT (ANT94-0040) is acknowledged Article in Journal/Newspaper South Atlantic Ocean Digital.CSIC (Spanish National Research Council) Pacific Geophysical Research Letters 28 12 2481 2484 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
4 pages, 4 figures The present study describes the first sea surface temperature (SST) reconstruction in the southeastern Subtropical Pacific Ocean, offshore the South American coast. The obtained record encompasses the last 400 kyr and follows the characteristic glacial/interglacial pattern defined by global ice volume. However, SST leads the δ18O isotopic record reflecting the role of the low latitudes areas in driving climate change. SST in the Holocene is lower by about 0.5-0.8°C than maximal SST in stages 5e, 7, 9 and 11. SST in stages 2-4 is lower by about 0.6-1.3°C than minimal SST in stages 6, 8 and 10. These features are similar to SST records obtained in the South Atlantic Ocean pointing to a general inter-basinal behaviour at these low latitudes. For most of the record, the observed long-term SST evolution is well correlated with the orbital parameter of eccentricity, which modulates the insolation at low latitudes. However, at low eccentricity values (Stages 11 - 9 and Termination I), SST is driven by obliquity, exhibiting a dependence from high latitude climatic responses Financial support from the TEMPUS EU project (ENV4-CT97-0564) and CYCIT (ANT94-0040) is acknowledged |
format |
Article in Journal/Newspaper |
author |
Calvo, Eva María Pelejero, Carles Herguera, Juan C. Palanques, Albert Grimalt, Joan O. |
spellingShingle |
Calvo, Eva María Pelejero, Carles Herguera, Juan C. Palanques, Albert Grimalt, Joan O. Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
author_facet |
Calvo, Eva María Pelejero, Carles Herguera, Juan C. Palanques, Albert Grimalt, Joan O. |
author_sort |
Calvo, Eva María |
title |
Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
title_short |
Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
title_full |
Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
title_fullStr |
Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
title_full_unstemmed |
Insolation dependence of the southeastern Subtropical Pacific sea surface temperature over the last 400 kyrs |
title_sort |
insolation dependence of the southeastern subtropical pacific sea surface temperature over the last 400 kyrs |
publisher |
American Geophysical Union |
publishDate |
2001 |
url |
http://hdl.handle.net/10261/244107 https://doi.org/10.1029/2000GL012024 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Publisher's version https://doi.org/10.1029/2000GL012024 Sí issn: 0094-8276 e-issn: 1944-8007 Geophysical Research Letters 28(12): 2481-2484 (2001) http://hdl.handle.net/10261/244107 doi:10.1029/2000GL012024 |
op_rights |
open |
op_doi |
https://doi.org/10.1029/2000GL012024 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
12 |
container_start_page |
2481 |
op_container_end_page |
2484 |
_version_ |
1790608046524727296 |