Particle-laden Eurasian Arctic sea ice: observations from July and August 1987
During the summer 1987 expedition of the polar research vessel‘Polarstern’in the Eurasian Basin of the Arctic Ocean, sea ice at about 84-86°N and 20-30°E was found to have high concentrations of particulate material. The particle-laden ice occurred in patches which often darkened more than half the...
Published in: | Polar Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
1989
|
Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/2402 https://doi.org/10.3402/polar.v7i1.6830 |
id |
ftjpolarres:oai:journals.openacademia.net:article/2402 |
---|---|
record_format |
openpolar |
spelling |
ftjpolarres:oai:journals.openacademia.net:article/2402 2023-05-15T14:54:51+02:00 Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 Pfirman, Stephanie Gascard, Jean-Claude Wollenburg, Ingo Mudie, Peta Abelmann, Andrea 1989-01-06 application/pdf https://polarresearch.net/index.php/polar/article/view/2402 https://doi.org/10.3402/polar.v7i1.6830 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2402/5652 https://polarresearch.net/index.php/polar/article/view/2402 doi:10.3402/polar.v7i1.6830 Copyright (c) 2018 Polar Research Polar Research; Vol. 7 No. 1 (1989); 59-66 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1989 ftjpolarres https://doi.org/10.3402/polar.v7i1.6830 2021-11-11T19:12:32Z During the summer 1987 expedition of the polar research vessel‘Polarstern’in the Eurasian Basin of the Arctic Ocean, sea ice at about 84-86°N and 20-30°E was found to have high concentrations of particulate material. The particle-laden ice occurred in patches which often darkened more than half the ice surface at our northernmost positions. Much of this ice appeared to be within the Siberian Branch of the Transpolar Drift stream, which transports deformed, multi-year ice from the Siberian shelves westward across the Eurasian Basin. Lithogenic sediment, which is the major component of the particulate material, may have been incorporated during ice formation on the shallow Siberian seas. Diatoms collected from the particle-rich ice surfaces support this conclusion, as assemblages were dominated by a marine benthic species similar to that reported from sea ice off the coast of northeast Siberia. Based on drift trajectories of buoys deployed on the ice it appears that much of the particle-laden ice exited the Arctic Ocean through the Fram Strait and joined the East Greenland Current. Very different sea ice characteristics were found east of the Yermak Plateau and north of Svalbard and Frans Josef Land up to about 83-84°N. Here sea ice was thinner, less deformed, with lower amounts of lithogenic sediment and diatoms. The diatom assemblage was dominated by planktonic freshwater species. Trajectories of buoys deployed on sea ice in this region indicated a tendency for southward transport to the Yermak Plateau or into the Barents Sea. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea East Greenland east greenland current Fram Strait Greenland Polar Research Sea ice Svalbard Yermak plateau Siberia Polar Research (E-Journal) Arctic Arctic Ocean Svalbard Barents Sea Greenland Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Polar Research 7 1 59 66 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
During the summer 1987 expedition of the polar research vessel‘Polarstern’in the Eurasian Basin of the Arctic Ocean, sea ice at about 84-86°N and 20-30°E was found to have high concentrations of particulate material. The particle-laden ice occurred in patches which often darkened more than half the ice surface at our northernmost positions. Much of this ice appeared to be within the Siberian Branch of the Transpolar Drift stream, which transports deformed, multi-year ice from the Siberian shelves westward across the Eurasian Basin. Lithogenic sediment, which is the major component of the particulate material, may have been incorporated during ice formation on the shallow Siberian seas. Diatoms collected from the particle-rich ice surfaces support this conclusion, as assemblages were dominated by a marine benthic species similar to that reported from sea ice off the coast of northeast Siberia. Based on drift trajectories of buoys deployed on the ice it appears that much of the particle-laden ice exited the Arctic Ocean through the Fram Strait and joined the East Greenland Current. Very different sea ice characteristics were found east of the Yermak Plateau and north of Svalbard and Frans Josef Land up to about 83-84°N. Here sea ice was thinner, less deformed, with lower amounts of lithogenic sediment and diatoms. The diatom assemblage was dominated by planktonic freshwater species. Trajectories of buoys deployed on sea ice in this region indicated a tendency for southward transport to the Yermak Plateau or into the Barents Sea. |
format |
Article in Journal/Newspaper |
author |
Pfirman, Stephanie Gascard, Jean-Claude Wollenburg, Ingo Mudie, Peta Abelmann, Andrea |
spellingShingle |
Pfirman, Stephanie Gascard, Jean-Claude Wollenburg, Ingo Mudie, Peta Abelmann, Andrea Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
author_facet |
Pfirman, Stephanie Gascard, Jean-Claude Wollenburg, Ingo Mudie, Peta Abelmann, Andrea |
author_sort |
Pfirman, Stephanie |
title |
Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
title_short |
Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
title_full |
Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
title_fullStr |
Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
title_full_unstemmed |
Particle-laden Eurasian Arctic sea ice: observations from July and August 1987 |
title_sort |
particle-laden eurasian arctic sea ice: observations from july and august 1987 |
publisher |
Norwegian Polar Institute |
publishDate |
1989 |
url |
https://polarresearch.net/index.php/polar/article/view/2402 https://doi.org/10.3402/polar.v7i1.6830 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Arctic Ocean Svalbard Barents Sea Greenland Yermak Plateau |
geographic_facet |
Arctic Arctic Ocean Svalbard Barents Sea Greenland Yermak Plateau |
genre |
Arctic Arctic Ocean Barents Sea East Greenland east greenland current Fram Strait Greenland Polar Research Sea ice Svalbard Yermak plateau Siberia |
genre_facet |
Arctic Arctic Ocean Barents Sea East Greenland east greenland current Fram Strait Greenland Polar Research Sea ice Svalbard Yermak plateau Siberia |
op_source |
Polar Research; Vol. 7 No. 1 (1989); 59-66 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2402/5652 https://polarresearch.net/index.php/polar/article/view/2402 doi:10.3402/polar.v7i1.6830 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v7i1.6830 |
container_title |
Polar Research |
container_volume |
7 |
container_issue |
1 |
container_start_page |
59 |
op_container_end_page |
66 |
_version_ |
1766326597067997184 |