Sediments in arctic sea ice - entrainment, characterization and quantification
Sediments in Arctic sea ice are important for erosion and redistribution and consequently a factor for the sediment budget of the Arctic Ocean. The processes leading to the incorporation of sediments into the ice are not understood in detail yet. In the present study, experiments on the incorporatio...
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1998
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.693818 https://doi.org/10.1594/PANGAEA.693818 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.693818 2023-05-15T14:25:16+02:00 Sediments in arctic sea ice - entrainment, characterization and quantification Thiede, Jörn Lindemann, Frank MEDIAN LATITUDE: 76.201248 * MEDIAN LONGITUDE: 131.474341 * SOUTH-BOUND LATITUDE: 70.881667 * WEST-BOUND LONGITUDE: 105.326600 * NORTH-BOUND LATITUDE: 81.194500 * EAST-BOUND LONGITUDE: 152.074100 1998-07-14 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.693818 https://doi.org/10.1594/PANGAEA.693818 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.693818 https://doi.org/10.1594/PANGAEA.693818 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Lindemann, Frank (1998): Sedimente im arktischen Meereis - Eintrag, Charakterisierung und Quantifizierung (Sediments in arctic sea ice - entrainment, characterization and quantification). Berichte zur Polarforschung = Reports on Polar Research, 283, 124 pp, https://doi.org/10.2312/BzP_0283_1998 201 205b 208 209 210 219 221 228a 228b 229 230 232b 234 237 239 240 241 242 246 283-1 283-4 285-1 286-1 287-1 287-2 288-2 288-4 290-1 291-1 291-3 292-1 292-2 293-1 293-2 293-3 293-4 293-5 293-6 293-7 294-1 294-2 294-3 294-4 294-6 295-1 295-2 295-3 295-4 295-5 295-6 Dataset 1998 ftpangaea https://doi.org/10.1594/PANGAEA.693818 https://doi.org/10.2312/BzP_0283_1998 2023-01-20T07:31:11Z Sediments in Arctic sea ice are important for erosion and redistribution and consequently a factor for the sediment budget of the Arctic Ocean. The processes leading to the incorporation of sediments into the ice are not understood in detail yet. In the present study, experiments on the incorporation of sediments were therefore conducted in ice tanks of The Hamburg Ship Model Basin (HSVA) in winter 1996/1997, These experiments showed that on average 75 % of the artificial sea-ice sediments were located in the brine-channel system. The sediments were scavenged from the water column by frazil ice. Sediments functioning as a nucleus for the formation of frazil ice were less important for the incorporation. Filtration in grease ice during relatively calm hydrodynamic conditions was probably an effective process to enrich sediments in the ice. Wave fields did not play an important role for the incorporation of sediments into the artificial sea ice. During the expedition TRANSDRIFT III (TDIII, October 1995), different types of natural, newly-formed sea ice (grease ice, nilas and young ice) were sampled in the inner Laptev Sea at the time of freeze-up. The incorporation of sediments took place during calm meteorological conditions then. The characteristics of the clay mineral assemblages of these sedirnents served as references for sea-ice sediments which were sampled from first-year drift ice in the outer Laptev Sea and the adjacent Arctic Ocean during the POLARSTERN expedition ARK-XI/1 (July-September 1995). Based on the clay mineral assemblages, probable incorporation areas for the sedirnents in first-year drift ice could be statistically reconstructed in the inner Laptev Sea (eastern, central, and Western Laptev Sea) as well as in adjacent regions. Comparing the amounts of particulate organic carbon (POC) in sea-ice sediments and in surface sediments from the shelves of potential incorporation areas often reveals higher values in sea-ice sediments (TDIII: 3.6 %DM; ARK-XI/1: 2.3 %DM). This enrichment of POC is ... Dataset Arctic Arctic Arctic Ocean Berichte zur Polarforschung laptev Laptev Sea Polar Research Polarforschung Reports on polar research Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Laptev Sea ENVELOPE(105.326600,152.074100,81.194500,70.881667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
201 205b 208 209 210 219 221 228a 228b 229 230 232b 234 237 239 240 241 242 246 283-1 283-4 285-1 286-1 287-1 287-2 288-2 288-4 290-1 291-1 291-3 292-1 292-2 293-1 293-2 293-3 293-4 293-5 293-6 293-7 294-1 294-2 294-3 294-4 294-6 295-1 295-2 295-3 295-4 295-5 295-6 |
spellingShingle |
201 205b 208 209 210 219 221 228a 228b 229 230 232b 234 237 239 240 241 242 246 283-1 283-4 285-1 286-1 287-1 287-2 288-2 288-4 290-1 291-1 291-3 292-1 292-2 293-1 293-2 293-3 293-4 293-5 293-6 293-7 294-1 294-2 294-3 294-4 294-6 295-1 295-2 295-3 295-4 295-5 295-6 Thiede, Jörn Lindemann, Frank Sediments in arctic sea ice - entrainment, characterization and quantification |
topic_facet |
201 205b 208 209 210 219 221 228a 228b 229 230 232b 234 237 239 240 241 242 246 283-1 283-4 285-1 286-1 287-1 287-2 288-2 288-4 290-1 291-1 291-3 292-1 292-2 293-1 293-2 293-3 293-4 293-5 293-6 293-7 294-1 294-2 294-3 294-4 294-6 295-1 295-2 295-3 295-4 295-5 295-6 |
description |
Sediments in Arctic sea ice are important for erosion and redistribution and consequently a factor for the sediment budget of the Arctic Ocean. The processes leading to the incorporation of sediments into the ice are not understood in detail yet. In the present study, experiments on the incorporation of sediments were therefore conducted in ice tanks of The Hamburg Ship Model Basin (HSVA) in winter 1996/1997, These experiments showed that on average 75 % of the artificial sea-ice sediments were located in the brine-channel system. The sediments were scavenged from the water column by frazil ice. Sediments functioning as a nucleus for the formation of frazil ice were less important for the incorporation. Filtration in grease ice during relatively calm hydrodynamic conditions was probably an effective process to enrich sediments in the ice. Wave fields did not play an important role for the incorporation of sediments into the artificial sea ice. During the expedition TRANSDRIFT III (TDIII, October 1995), different types of natural, newly-formed sea ice (grease ice, nilas and young ice) were sampled in the inner Laptev Sea at the time of freeze-up. The incorporation of sediments took place during calm meteorological conditions then. The characteristics of the clay mineral assemblages of these sedirnents served as references for sea-ice sediments which were sampled from first-year drift ice in the outer Laptev Sea and the adjacent Arctic Ocean during the POLARSTERN expedition ARK-XI/1 (July-September 1995). Based on the clay mineral assemblages, probable incorporation areas for the sedirnents in first-year drift ice could be statistically reconstructed in the inner Laptev Sea (eastern, central, and Western Laptev Sea) as well as in adjacent regions. Comparing the amounts of particulate organic carbon (POC) in sea-ice sediments and in surface sediments from the shelves of potential incorporation areas often reveals higher values in sea-ice sediments (TDIII: 3.6 %DM; ARK-XI/1: 2.3 %DM). This enrichment of POC is ... |
format |
Dataset |
author |
Thiede, Jörn Lindemann, Frank |
author_facet |
Thiede, Jörn Lindemann, Frank |
author_sort |
Thiede, Jörn |
title |
Sediments in arctic sea ice - entrainment, characterization and quantification |
title_short |
Sediments in arctic sea ice - entrainment, characterization and quantification |
title_full |
Sediments in arctic sea ice - entrainment, characterization and quantification |
title_fullStr |
Sediments in arctic sea ice - entrainment, characterization and quantification |
title_full_unstemmed |
Sediments in arctic sea ice - entrainment, characterization and quantification |
title_sort |
sediments in arctic sea ice - entrainment, characterization and quantification |
publisher |
PANGAEA |
publishDate |
1998 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.693818 https://doi.org/10.1594/PANGAEA.693818 |
op_coverage |
MEDIAN LATITUDE: 76.201248 * MEDIAN LONGITUDE: 131.474341 * SOUTH-BOUND LATITUDE: 70.881667 * WEST-BOUND LONGITUDE: 105.326600 * NORTH-BOUND LATITUDE: 81.194500 * EAST-BOUND LONGITUDE: 152.074100 |
long_lat |
ENVELOPE(105.326600,152.074100,81.194500,70.881667) |
geographic |
Arctic Arctic Ocean Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea |
genre |
Arctic Arctic Arctic Ocean Berichte zur Polarforschung laptev Laptev Sea Polar Research Polarforschung Reports on polar research Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Berichte zur Polarforschung laptev Laptev Sea Polar Research Polarforschung Reports on polar research Sea ice |
op_source |
Supplement to: Lindemann, Frank (1998): Sedimente im arktischen Meereis - Eintrag, Charakterisierung und Quantifizierung (Sediments in arctic sea ice - entrainment, characterization and quantification). Berichte zur Polarforschung = Reports on Polar Research, 283, 124 pp, https://doi.org/10.2312/BzP_0283_1998 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.693818 https://doi.org/10.1594/PANGAEA.693818 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.693818 https://doi.org/10.2312/BzP_0283_1998 |
_version_ |
1766297693291806720 |