Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing
North central Chile is located at an important climatic transition zone between humid conditions under the influence of the Southern Hemisphere Westerly Winds in the south and the extremely dry climate of the Atacama Desert in the north. Offshore, equatorward flowing cold waters of the Peru–Chile Cu...
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_237763 |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_237763 2023-05-15T13:40:18+02:00 Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing Kaiser, J. Schefuß, E. Lamy, F. Mohtadi, M. Hebbeln, D. 5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum 2008 https://gfzpublic.gfz-potsdam.de/pubman/item/item_237763 unknown info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2008.08.025 https://gfzpublic.gfz-potsdam.de/pubman/item/item_237763 Quaternary Science Reviews 550 - Earth sciences info:eu-repo/semantics/article 2008 ftgfzpotsdam https://doi.org/10.1016/j.quascirev.2008.08.025 2022-09-14T05:54:14Z North central Chile is located at an important climatic transition zone between humid conditions under the influence of the Southern Hemisphere Westerly Winds in the south and the extremely dry climate of the Atacama Desert in the north. Offshore, equatorward flowing cold waters of the Peru–Chile Current converge with relatively warmer waters coming from the low latitudes. Based on terrestrial and marine proxies from the same archive (GeoB 7139-2) (30°12′S; 71°59′W), we show that during the Glacial (between ~33 and 19 kyr) cold sea surface temperatures paralleled enhanced humidity with high terrestrial input and abundant vegetation on the adjacent land, suggesting a stronger influence of cold waters from the Antarctic Circumpolar Current and the Westerly Winds. While the deglacial sea surface temperature warming started at ~19 kyr, the humidity decrease occurred around 17–16 kyr BP. The early to mid-Holocene is characterized by extremely warm and dry conditions. We suggest that climate changes were driven by fluctuations in Antarctic sea-ice extent and the circulation of the Hadley cell, both ultimately linked to insolation changes. Our records further imply warm and dry conditions in north central Chile during the Northern Hemisphere Heinrich events. Article in Journal/Newspaper Antarc* Antarctic Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic The Antarctic Quaternary Science Reviews 27 21-22 2064 2075 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
topic |
550 - Earth sciences |
spellingShingle |
550 - Earth sciences Kaiser, J. Schefuß, E. Lamy, F. Mohtadi, M. Hebbeln, D. Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
topic_facet |
550 - Earth sciences |
description |
North central Chile is located at an important climatic transition zone between humid conditions under the influence of the Southern Hemisphere Westerly Winds in the south and the extremely dry climate of the Atacama Desert in the north. Offshore, equatorward flowing cold waters of the Peru–Chile Current converge with relatively warmer waters coming from the low latitudes. Based on terrestrial and marine proxies from the same archive (GeoB 7139-2) (30°12′S; 71°59′W), we show that during the Glacial (between ~33 and 19 kyr) cold sea surface temperatures paralleled enhanced humidity with high terrestrial input and abundant vegetation on the adjacent land, suggesting a stronger influence of cold waters from the Antarctic Circumpolar Current and the Westerly Winds. While the deglacial sea surface temperature warming started at ~19 kyr, the humidity decrease occurred around 17–16 kyr BP. The early to mid-Holocene is characterized by extremely warm and dry conditions. We suggest that climate changes were driven by fluctuations in Antarctic sea-ice extent and the circulation of the Hadley cell, both ultimately linked to insolation changes. Our records further imply warm and dry conditions in north central Chile during the Northern Hemisphere Heinrich events. |
author2 |
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum |
format |
Article in Journal/Newspaper |
author |
Kaiser, J. Schefuß, E. Lamy, F. Mohtadi, M. Hebbeln, D. |
author_facet |
Kaiser, J. Schefuß, E. Lamy, F. Mohtadi, M. Hebbeln, D. |
author_sort |
Kaiser, J. |
title |
Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
title_short |
Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
title_full |
Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
title_fullStr |
Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
title_full_unstemmed |
Glacial to Holocene changes in sea surface temperature and coastal vegetation in north central Chile: high versus low latitude forcing |
title_sort |
glacial to holocene changes in sea surface temperature and coastal vegetation in north central chile: high versus low latitude forcing |
publishDate |
2008 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_237763 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Quaternary Science Reviews |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2008.08.025 https://gfzpublic.gfz-potsdam.de/pubman/item/item_237763 |
op_doi |
https://doi.org/10.1016/j.quascirev.2008.08.025 |
container_title |
Quaternary Science Reviews |
container_volume |
27 |
container_issue |
21-22 |
container_start_page |
2064 |
op_container_end_page |
2075 |
_version_ |
1766132051909541888 |