Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean
Understanding the response of the climate to abrupt changes in the Earth system represents a key objective in paleoclimatology. Heinrich events in the last glacial, during which significant amounts of glacial discharge entered the North Atlantic Ocean, triggered the development of colder conditions...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.925157 2024-09-15T18:12:18+00:00 Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean Swann, George E A LATITUDE: 54.365500 * LONGITUDE: -148.446000 * DATE/TIME START: 1992-09-09T00:00:00 * DATE/TIME END: 1992-09-16T00:00:00 2020 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.925157 https://doi.org/10.1594/PANGAEA.925157 en eng PANGAEA Swann, George E A (2020): Glacial discharge into the subarctic Northeast Pacific Ocean during the last glacial. Global and Planetary Change, 194, 103301, https://doi.org/10.1016/j.gloplacha.2020.103301 https://doi.pangaea.de/10.1594/PANGAEA.925157 https://doi.org/10.1594/PANGAEA.925157 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Diatom isotope Ocean Drilling Program ODP Pacific Salinity dataset bundled publication 2020 ftpangaea https://doi.org/10.1594/PANGAEA.92515710.1016/j.gloplacha.2020.103301 2024-07-24T02:31:21Z Understanding the response of the climate to abrupt changes in the Earth system represents a key objective in paleoclimatology. Heinrich events in the last glacial, during which significant amounts of glacial discharge entered the North Atlantic Ocean, triggered the development of colder conditions across much of the globe. Despite widespread documentation of these events, including their occurrence and global significance, the impact of Heinrich events on the North American Cordilleran Ice Sheet and subarctic North Pacific Ocean remains relatively unconstrained. Here, records of diatom oxygen isotopes are used to show that significant amounts of glacial discharge from the Cordilleran Ice Sheet were released into the open waters of the northeast Pacific Ocean throughout the last glacial. Based on the available age model, many of these episodes and calculated changes in sea surface salinity coincide with Heinrich events. If accurate, these findings would confirm that ocean-atmospheric teleconnections linked the North Atlantic and North Pacific Oceans during intervals of abrupt change in the last glacial, as well as indicating the wider susceptibility of regional ice-sheets to global alterations in the climate system. Other/Unknown Material Ice Sheet North Atlantic Subarctic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-148.446000,-148.446000,54.365500,54.365500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Diatom isotope Ocean Drilling Program ODP Pacific Salinity |
spellingShingle |
Diatom isotope Ocean Drilling Program ODP Pacific Salinity Swann, George E A Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
topic_facet |
Diatom isotope Ocean Drilling Program ODP Pacific Salinity |
description |
Understanding the response of the climate to abrupt changes in the Earth system represents a key objective in paleoclimatology. Heinrich events in the last glacial, during which significant amounts of glacial discharge entered the North Atlantic Ocean, triggered the development of colder conditions across much of the globe. Despite widespread documentation of these events, including their occurrence and global significance, the impact of Heinrich events on the North American Cordilleran Ice Sheet and subarctic North Pacific Ocean remains relatively unconstrained. Here, records of diatom oxygen isotopes are used to show that significant amounts of glacial discharge from the Cordilleran Ice Sheet were released into the open waters of the northeast Pacific Ocean throughout the last glacial. Based on the available age model, many of these episodes and calculated changes in sea surface salinity coincide with Heinrich events. If accurate, these findings would confirm that ocean-atmospheric teleconnections linked the North Atlantic and North Pacific Oceans during intervals of abrupt change in the last glacial, as well as indicating the wider susceptibility of regional ice-sheets to global alterations in the climate system. |
format |
Other/Unknown Material |
author |
Swann, George E A |
author_facet |
Swann, George E A |
author_sort |
Swann, George E A |
title |
Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
title_short |
Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
title_full |
Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
title_fullStr |
Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
title_full_unstemmed |
Diatom isotope data and salinity reconstructions from ODP Site 887, subarctic northeast Pacific Ocean |
title_sort |
diatom isotope data and salinity reconstructions from odp site 887, subarctic northeast pacific ocean |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.925157 https://doi.org/10.1594/PANGAEA.925157 |
op_coverage |
LATITUDE: 54.365500 * LONGITUDE: -148.446000 * DATE/TIME START: 1992-09-09T00:00:00 * DATE/TIME END: 1992-09-16T00:00:00 |
long_lat |
ENVELOPE(-148.446000,-148.446000,54.365500,54.365500) |
genre |
Ice Sheet North Atlantic Subarctic |
genre_facet |
Ice Sheet North Atlantic Subarctic |
op_relation |
Swann, George E A (2020): Glacial discharge into the subarctic Northeast Pacific Ocean during the last glacial. Global and Planetary Change, 194, 103301, https://doi.org/10.1016/j.gloplacha.2020.103301 https://doi.pangaea.de/10.1594/PANGAEA.925157 https://doi.org/10.1594/PANGAEA.925157 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.92515710.1016/j.gloplacha.2020.103301 |
_version_ |
1810449896346484736 |