Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24
Micropaleontological and biomarker data from two high-accumulation marine sites from the Coastal and Continental Shelf Zone (CCSZ) off East Antarctica (Adélie Land at w140°E and eastern Prydz Bay at w77°E) are used to reconstruct Holocene changes in sea ice and wind stress at the basin-wide scale. T...
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ftdatacite:10.1594/pangaea.788431 2023-05-15T14:02:56+02:00 Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 Barbara, Loïc Crosta, Xavier Massé, Guillaume Ther, Olivier 2010 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.788431 https://doi.pangaea.de/10.1594/PANGAEA.788431 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1594/pangaea.810139 https://dx.doi.org/10.1016/j.quascirev.2010.06.027 https://dx.doi.org/10.1016/j.quascirev.2010.08.007 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY DEPTH, sediment/rock AGE Fragilariopsis curta and Fragilariopsis cylindrus Jumbo Piston Core Dataset dataset 2010 ftdatacite https://doi.org/10.1594/pangaea.788431 https://doi.org/10.1594/pangaea.810139 https://doi.org/10.1016/j.quascirev.2010.06.027 https://doi.org/10.1016/j.quascirev.2010.08.007 2022-02-09T13:19:56Z Micropaleontological and biomarker data from two high-accumulation marine sites from the Coastal and Continental Shelf Zone (CCSZ) off East Antarctica (Adélie Land at w140°E and eastern Prydz Bay at w77°E) are used to reconstruct Holocene changes in sea ice and wind stress at the basin-wide scale. These data demonstrate congruent increase in sea-ice concentration/persistence and wind stress-related sea-surface turbulence in the two regions since 7 cal ka BP, with a particularly strong signal since 4.5 - 3.5 cal ka BP. Comparison of these high latitude records with sea ice and turbulence records from the southern mid-latitudes highlights distinctive climatic evolutions according to the different latitudinal bands. Sea-ice persistence and turbulence increase in East Antarctica CCSZ are opposite to sea-surface warming and sea-ice retreat recorded after 4.5 - 3.5 cal ka BP in the East Atlantic and Indian sector between 55 and 45°S. At the same period, paleodata suggest SST cooling in all major coastal upwelling systems of the southern hemisphere, caused by the northward transport of subpolar surface waters as a response to southern Westerlies reinforcement. We therefore propose, as suggested for the northern hemisphere, that Holocene changes in the latitudinal insolation gradient, primarily forced by obliquity and precession and amplified by sea-ice and glacial-ice expansions in the Antarctic realm, are responsible for the observed contrasted latitudinal patterns of southern latitudes. : Age is given in calendar years BP.Data were obtained within the framework of INSU-CNRS project TARDHOL and ANR CLIMICE (ANR-08-CEXC-012-01), provided for the data compilation of the Past4Future Project. Dataset Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice DataCite Metadata Store (German National Library of Science and Technology) Antarctic East Antarctica Indian Prydz Bay The Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock AGE Fragilariopsis curta and Fragilariopsis cylindrus Jumbo Piston Core |
spellingShingle |
DEPTH, sediment/rock AGE Fragilariopsis curta and Fragilariopsis cylindrus Jumbo Piston Core Barbara, Loïc Crosta, Xavier Massé, Guillaume Ther, Olivier Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
topic_facet |
DEPTH, sediment/rock AGE Fragilariopsis curta and Fragilariopsis cylindrus Jumbo Piston Core |
description |
Micropaleontological and biomarker data from two high-accumulation marine sites from the Coastal and Continental Shelf Zone (CCSZ) off East Antarctica (Adélie Land at w140°E and eastern Prydz Bay at w77°E) are used to reconstruct Holocene changes in sea ice and wind stress at the basin-wide scale. These data demonstrate congruent increase in sea-ice concentration/persistence and wind stress-related sea-surface turbulence in the two regions since 7 cal ka BP, with a particularly strong signal since 4.5 - 3.5 cal ka BP. Comparison of these high latitude records with sea ice and turbulence records from the southern mid-latitudes highlights distinctive climatic evolutions according to the different latitudinal bands. Sea-ice persistence and turbulence increase in East Antarctica CCSZ are opposite to sea-surface warming and sea-ice retreat recorded after 4.5 - 3.5 cal ka BP in the East Atlantic and Indian sector between 55 and 45°S. At the same period, paleodata suggest SST cooling in all major coastal upwelling systems of the southern hemisphere, caused by the northward transport of subpolar surface waters as a response to southern Westerlies reinforcement. We therefore propose, as suggested for the northern hemisphere, that Holocene changes in the latitudinal insolation gradient, primarily forced by obliquity and precession and amplified by sea-ice and glacial-ice expansions in the Antarctic realm, are responsible for the observed contrasted latitudinal patterns of southern latitudes. : Age is given in calendar years BP.Data were obtained within the framework of INSU-CNRS project TARDHOL and ANR CLIMICE (ANR-08-CEXC-012-01), provided for the data compilation of the Past4Future Project. |
format |
Dataset |
author |
Barbara, Loïc Crosta, Xavier Massé, Guillaume Ther, Olivier |
author_facet |
Barbara, Loïc Crosta, Xavier Massé, Guillaume Ther, Olivier |
author_sort |
Barbara, Loïc |
title |
Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
title_short |
Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
title_full |
Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
title_fullStr |
Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
title_full_unstemmed |
Relative abundances of sea ice-related abundances in sediment core NBP01-01-JPC24 |
title_sort |
relative abundances of sea ice-related abundances in sediment core nbp01-01-jpc24 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.788431 https://doi.pangaea.de/10.1594/PANGAEA.788431 |
geographic |
Antarctic East Antarctica Indian Prydz Bay The Antarctic |
geographic_facet |
Antarctic East Antarctica Indian Prydz Bay The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Prydz Bay Sea ice |
op_relation |
https://dx.doi.org/10.1594/pangaea.810139 https://dx.doi.org/10.1016/j.quascirev.2010.06.027 https://dx.doi.org/10.1016/j.quascirev.2010.08.007 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.788431 https://doi.org/10.1594/pangaea.810139 https://doi.org/10.1016/j.quascirev.2010.06.027 https://doi.org/10.1016/j.quascirev.2010.08.007 |
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1766273383053393920 |