Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1

Presently, there is a scarcity of coastal (paleo) sea-ice reconstructions for periods prior to the Last Glacial Maximum. In this study, we investigated sea ice and ocean temperature proxies from marine sediment core PS118_63-1 from the Powell Basin, NW Weddell Sea. Past sea-ice characteristics infer...

Full description

Bibliographic Details
Main Authors: Khoo, Wee Wei, Esper, Oliver, Xiao, Wenshen, Hefter, Jens, Müller, Juliane
Format: Other/Unknown Material
Language:English
Published: PANGAEA
Subjects:
AWI_Paleo
Biomarkers
Last Interglacial
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Powell basin
Sea ice
Weddell Sea
Scotia Sea
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.965042
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.965042
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.965042 2024-09-15T18:34:04+00:00 Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1 Khoo, Wee Wei Esper, Oliver Xiao, Wenshen Hefter, Jens Müller, Juliane MEDIAN LATITUDE: -59.822560 * MEDIAN LONGITUDE: -45.978193 * SOUTH-BOUND LATITUDE: -61.123690 * WEST-BOUND LONGITUDE: -47.733790 * NORTH-BOUND LATITUDE: -57.220300 * EAST-BOUND LONGITUDE: -42.467000 * DATE/TIME START: 2005-05-10T12:28:00 * DATE/TIME END: 2019-03-28T21:11:00 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.965042 en eng PANGAEA Xiao, Wenshen (2011): Late Quaternary climate variability in Southern Ocean Atlantic Sector [dissertation]. urn:nbn:de:gbv:46-00102009-10 Xiao, Wenshen; Esper, Oliver; Gersonde, Rainer (2016): Last Glacial - Holocene climate variability in the Atlantic sector of the Southern Ocean. Quaternary Science Reviews, 135, 115-137, https://doi.org/10.1016/j.quascirev.2016.01.023 Xiao, Wenshen; Frederichs, Thomas; Gersonde, Rainer; Kuhn, Gerhard; Esper, Oliver; Zhang, Xu (2016): Constraining the dating of late Quaternary marine sediment records from the Scotia Sea (Southern Ocean). Quaternary Geochronology, 31, 97-118, https://doi.org/10.1016/j.quageo.2015.11.003 https://doi.pangaea.de/10.1594/PANGAEA.965042 CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess AWI_Paleo Biomarkers Last Interglacial Paleoenvironmental Reconstructions from Marine Sediments @ AWI Powell basin Sea ice Weddell Sea dataset bundled publication ftpangaea https://doi.org/10.1016/j.quascirev.2016.01.02310.1016/j.quageo.2015.11.003 2024-07-24T02:31:21Z Presently, there is a scarcity of coastal (paleo) sea-ice reconstructions for periods prior to the Last Glacial Maximum. In this study, we investigated sea ice and ocean temperature proxies from marine sediment core PS118_63-1 from the Powell Basin, NW Weddell Sea. Past sea-ice characteristics inferred from the sea-ice biomarker IPSO25, alongside phytoplankton biomarkers, TOC, biogenic opal estimates and diatom assemblages provide a continuous record of past sea-ice conditions and ocean temperature variability, back to the Penultimate Glacial (ca. 145 ka BP). Our results reveal a highly dynamic sea-ice environment, characterized by significant shifts from perennial (sea) ice cover to more seasonal sea-ice cover to open ocean conditions, with no significant glacial-interglacial ocean temperature variability in the Powell Basin. Furthermore, latitudinal tracking of sea-ice distribution and sea surface temperature differences is enabled when comparing diatom-inferred data from the marine sediment core PS67/219-1. Other/Unknown Material Scotia Sea Sea ice Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-47.733790,-42.467000,-57.220300,-61.123690)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic AWI_Paleo
Biomarkers
Last Interglacial
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Powell basin
Sea ice
Weddell Sea
spellingShingle AWI_Paleo
Biomarkers
Last Interglacial
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Powell basin
Sea ice
Weddell Sea
Khoo, Wee Wei
Esper, Oliver
Xiao, Wenshen
Hefter, Jens
Müller, Juliane
Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
topic_facet AWI_Paleo
Biomarkers
Last Interglacial
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Powell basin
Sea ice
Weddell Sea
description Presently, there is a scarcity of coastal (paleo) sea-ice reconstructions for periods prior to the Last Glacial Maximum. In this study, we investigated sea ice and ocean temperature proxies from marine sediment core PS118_63-1 from the Powell Basin, NW Weddell Sea. Past sea-ice characteristics inferred from the sea-ice biomarker IPSO25, alongside phytoplankton biomarkers, TOC, biogenic opal estimates and diatom assemblages provide a continuous record of past sea-ice conditions and ocean temperature variability, back to the Penultimate Glacial (ca. 145 ka BP). Our results reveal a highly dynamic sea-ice environment, characterized by significant shifts from perennial (sea) ice cover to more seasonal sea-ice cover to open ocean conditions, with no significant glacial-interglacial ocean temperature variability in the Powell Basin. Furthermore, latitudinal tracking of sea-ice distribution and sea surface temperature differences is enabled when comparing diatom-inferred data from the marine sediment core PS67/219-1.
format Other/Unknown Material
author Khoo, Wee Wei
Esper, Oliver
Xiao, Wenshen
Hefter, Jens
Müller, Juliane
author_facet Khoo, Wee Wei
Esper, Oliver
Xiao, Wenshen
Hefter, Jens
Müller, Juliane
author_sort Khoo, Wee Wei
title Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
title_short Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
title_full Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
title_fullStr Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
title_full_unstemmed Sea-ice distribution and ocean temperature variation in the Powell Basin and Scotia Sea, inferred from marine sediment cores PS118_63-1 and PS67/219-1
title_sort sea-ice distribution and ocean temperature variation in the powell basin and scotia sea, inferred from marine sediment cores ps118_63-1 and ps67/219-1
publisher PANGAEA
url https://doi.pangaea.de/10.1594/PANGAEA.965042
op_coverage MEDIAN LATITUDE: -59.822560 * MEDIAN LONGITUDE: -45.978193 * SOUTH-BOUND LATITUDE: -61.123690 * WEST-BOUND LONGITUDE: -47.733790 * NORTH-BOUND LATITUDE: -57.220300 * EAST-BOUND LONGITUDE: -42.467000 * DATE/TIME START: 2005-05-10T12:28:00 * DATE/TIME END: 2019-03-28T21:11:00
long_lat ENVELOPE(-47.733790,-42.467000,-57.220300,-61.123690)
genre Scotia Sea
Sea ice
Weddell Sea
genre_facet Scotia Sea
Sea ice
Weddell Sea
op_relation Xiao, Wenshen (2011): Late Quaternary climate variability in Southern Ocean Atlantic Sector [dissertation]. urn:nbn:de:gbv:46-00102009-10
Xiao, Wenshen; Esper, Oliver; Gersonde, Rainer (2016): Last Glacial - Holocene climate variability in the Atlantic sector of the Southern Ocean. Quaternary Science Reviews, 135, 115-137, https://doi.org/10.1016/j.quascirev.2016.01.023
Xiao, Wenshen; Frederichs, Thomas; Gersonde, Rainer; Kuhn, Gerhard; Esper, Oliver; Zhang, Xu (2016): Constraining the dating of late Quaternary marine sediment records from the Scotia Sea (Southern Ocean). Quaternary Geochronology, 31, 97-118, https://doi.org/10.1016/j.quageo.2015.11.003
https://doi.pangaea.de/10.1594/PANGAEA.965042
op_rights CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends)
Access constraints: access rights needed
info:eu-repo/semantics/restrictedAccess
op_doi https://doi.org/10.1016/j.quascirev.2016.01.02310.1016/j.quageo.2015.11.003
_version_ 1810475790995816448

Similar Items