Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean
This data publication contains sea-surface temperatures and diatom abundances and biometry in sediment core DCR-1PC from the southwestern Indian sector of the Southern Ocean over the last 350,000 years. Core DRC1-PC was retrieved during the oceanographic expedition Hakuho-maru KH-10-7 during the aus...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.913534 2023-05-15T18:24:38+02:00 Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean Crosta, Xavier Shukla, Sunil LATITUDE: -46.022333 * LONGITUDE: 44.254000 2020-03-17 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.913534 https://doi.org/10.1594/PANGAEA.913534 en eng PANGAEA Crosta, Xavier; Shukla, Sunil; Ther, Olivier; Ikehara, Minoru; Yamane, Masako; Yokoyama, Yusuke (2020): Last Abundant Appearance Datum of Hemidiscus karstenii driven by climate change. Marine Micropaleontology, 157, 101861, https://doi.org/10.1016/j.marmicro.2020.101861 https://doi.pangaea.de/10.1594/PANGAEA.913534 https://doi.org/10.1594/PANGAEA.913534 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Biometry diatoms Late Quaternary Southern Ocean temperatures Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.913534 https://doi.org/10.1016/j.marmicro.2020.101861 2023-01-20T07:34:31Z This data publication contains sea-surface temperatures and diatom abundances and biometry in sediment core DCR-1PC from the southwestern Indian sector of the Southern Ocean over the last 350,000 years. Core DRC1-PC was retrieved during the oceanographic expedition Hakuho-maru KH-10-7 during the austral summer 2010-2011. Diatom census counts and diatom biometry were performed in 2018-2019 to investigate the potential impact of climate degradation on Hemisdicus karstenii disappearance at ~190 ka. Included are relative abundances (RA in % of the total diatom assemblages) and absolute abundances (AA in millions of valve per gram of dry sediment) of Hemidiscus karstenii (Hk) and Fragilariopsis kerguelensis (Fk). Summer sea-surface temperatures (January to March) were estimated by applying the Modern Analog Technique (MAT) to fossil diatom assemblages. Hk and Fk biometry versus depth and age are also included. For each depth, mean length results from measurements of 100 different and complete valves of both Hk and Fk on which within-sample standard deviations were calculated. Dataset Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Austral Indian Southern Ocean ENVELOPE(44.254000,44.254000,-46.022333,-46.022333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Biometry diatoms Late Quaternary Southern Ocean temperatures |
spellingShingle |
Biometry diatoms Late Quaternary Southern Ocean temperatures Crosta, Xavier Shukla, Sunil Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
topic_facet |
Biometry diatoms Late Quaternary Southern Ocean temperatures |
description |
This data publication contains sea-surface temperatures and diatom abundances and biometry in sediment core DCR-1PC from the southwestern Indian sector of the Southern Ocean over the last 350,000 years. Core DRC1-PC was retrieved during the oceanographic expedition Hakuho-maru KH-10-7 during the austral summer 2010-2011. Diatom census counts and diatom biometry were performed in 2018-2019 to investigate the potential impact of climate degradation on Hemisdicus karstenii disappearance at ~190 ka. Included are relative abundances (RA in % of the total diatom assemblages) and absolute abundances (AA in millions of valve per gram of dry sediment) of Hemidiscus karstenii (Hk) and Fragilariopsis kerguelensis (Fk). Summer sea-surface temperatures (January to March) were estimated by applying the Modern Analog Technique (MAT) to fossil diatom assemblages. Hk and Fk biometry versus depth and age are also included. For each depth, mean length results from measurements of 100 different and complete valves of both Hk and Fk on which within-sample standard deviations were calculated. |
format |
Dataset |
author |
Crosta, Xavier Shukla, Sunil |
author_facet |
Crosta, Xavier Shukla, Sunil |
author_sort |
Crosta, Xavier |
title |
Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
title_short |
Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
title_full |
Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
title_fullStr |
Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
title_full_unstemmed |
Sea surface temperature, Hemisdiscus karstenii and Fragilariopsis kerguelensis biometry of sediment core DCR-1PC, southwest Indian sector of the Southern Ocean |
title_sort |
sea surface temperature, hemisdiscus karstenii and fragilariopsis kerguelensis biometry of sediment core dcr-1pc, southwest indian sector of the southern ocean |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.913534 https://doi.org/10.1594/PANGAEA.913534 |
op_coverage |
LATITUDE: -46.022333 * LONGITUDE: 44.254000 |
long_lat |
ENVELOPE(44.254000,44.254000,-46.022333,-46.022333) |
geographic |
Austral Indian Southern Ocean |
geographic_facet |
Austral Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Crosta, Xavier; Shukla, Sunil; Ther, Olivier; Ikehara, Minoru; Yamane, Masako; Yokoyama, Yusuke (2020): Last Abundant Appearance Datum of Hemidiscus karstenii driven by climate change. Marine Micropaleontology, 157, 101861, https://doi.org/10.1016/j.marmicro.2020.101861 https://doi.pangaea.de/10.1594/PANGAEA.913534 https://doi.org/10.1594/PANGAEA.913534 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.913534 https://doi.org/10.1016/j.marmicro.2020.101861 |
_version_ |
1766205368213438464 |