Role of cabbeling in water densification in the Greenland Basin
The effects of cabbeling mixing on water mass modification in the Greenland Sea were explored by hydrographic observations across the Greenland Basin in summer 2006. The neutral surface was chosen as a reference frame, and the strength of cabbeling mixing was quantified by the dianeutral velocity ma...
Published in: | Ocean Science |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2009
|
Subjects: | |
Online Access: | https://doi.org/10.5194/os-5-247-2009 https://noa.gwlb.de/receive/cop_mods_00030123 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030077/os-5-247-2009.pdf https://os.copernicus.org/articles/5/247/2009/os-5-247-2009.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00030123 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00030123 2023-05-15T15:00:30+02:00 Role of cabbeling in water densification in the Greenland Basin Kasajima, Y. Johannessen, T. 2009-07 electronic https://doi.org/10.5194/os-5-247-2009 https://noa.gwlb.de/receive/cop_mods_00030123 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030077/os-5-247-2009.pdf https://os.copernicus.org/articles/5/247/2009/os-5-247-2009.pdf eng eng Copernicus Publications Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-5-247-2009 https://noa.gwlb.de/receive/cop_mods_00030123 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030077/os-5-247-2009.pdf https://os.copernicus.org/articles/5/247/2009/os-5-247-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/os-5-247-2009 2022-02-08T22:47:21Z The effects of cabbeling mixing on water mass modification in the Greenland Sea were explored by hydrographic observations across the Greenland Basin in summer 2006. The neutral surface was chosen as a reference frame, and the strength of cabbeling mixing was quantified by the dianeutral velocity magnitude. Active cabbeling spots were detected with the criterion of the velocity magnitude >1 m/day, and four active cabbeling areas were identified; the west of Bear Island (SB), the Arctic Frontal Zone (AFZ), the central Greenland Sea (CG) and the western Greenland Sea (WG). The most vigorous cabbeling mixing was found at SB, where warm North Atlantic Water (NAW) mixed with cold water from the Barents Sea, inducing a maximum velocity of 7.5 m/day and a maximum density gain of 4.7×10−3 kg/m3. At AFZ and CG, the mixing took place between NAW, modified NAW and Arctic Intermediate Water (AIW), and the density gain at these fronts were 1.5×10−3 kg/m3 (AFZ) and 1.3×10−3 kg/m3 (CG). In the western Greenland Sea, the active cabbeling spots were widely separated and mixing appeared to be rather weak, with a maximum velocity of 2.5 m/day. The mixing source waters at WG were modified NAW, AIW and even denser water, and the density gain in this area was 0.4×10−3 kg/m3. The deepest mixing produced water whose density is equivalent to that of the dense water of the basin, indicating that cabbeling in the western Greenland Sea contributed directly to basin-scale water densification. The water mass modification rate was the highest at AFZ (about 8.0 Sv), suggesting that cabbeling may play an important role in water transformation in the Greenland Basin. Article in Journal/Newspaper Arctic Barents Sea Bear Island Greenland Greenland Sea North Atlantic Niedersächsisches Online-Archiv NOA Arctic Barents Sea Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Greenland Greenland Basin ENVELOPE(-5.000,-5.000,73.500,73.500) Ocean Science 5 3 247 257 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Kasajima, Y. Johannessen, T. Role of cabbeling in water densification in the Greenland Basin |
topic_facet |
article Verlagsveröffentlichung |
description |
The effects of cabbeling mixing on water mass modification in the Greenland Sea were explored by hydrographic observations across the Greenland Basin in summer 2006. The neutral surface was chosen as a reference frame, and the strength of cabbeling mixing was quantified by the dianeutral velocity magnitude. Active cabbeling spots were detected with the criterion of the velocity magnitude >1 m/day, and four active cabbeling areas were identified; the west of Bear Island (SB), the Arctic Frontal Zone (AFZ), the central Greenland Sea (CG) and the western Greenland Sea (WG). The most vigorous cabbeling mixing was found at SB, where warm North Atlantic Water (NAW) mixed with cold water from the Barents Sea, inducing a maximum velocity of 7.5 m/day and a maximum density gain of 4.7×10−3 kg/m3. At AFZ and CG, the mixing took place between NAW, modified NAW and Arctic Intermediate Water (AIW), and the density gain at these fronts were 1.5×10−3 kg/m3 (AFZ) and 1.3×10−3 kg/m3 (CG). In the western Greenland Sea, the active cabbeling spots were widely separated and mixing appeared to be rather weak, with a maximum velocity of 2.5 m/day. The mixing source waters at WG were modified NAW, AIW and even denser water, and the density gain in this area was 0.4×10−3 kg/m3. The deepest mixing produced water whose density is equivalent to that of the dense water of the basin, indicating that cabbeling in the western Greenland Sea contributed directly to basin-scale water densification. The water mass modification rate was the highest at AFZ (about 8.0 Sv), suggesting that cabbeling may play an important role in water transformation in the Greenland Basin. |
format |
Article in Journal/Newspaper |
author |
Kasajima, Y. Johannessen, T. |
author_facet |
Kasajima, Y. Johannessen, T. |
author_sort |
Kasajima, Y. |
title |
Role of cabbeling in water densification in the Greenland Basin |
title_short |
Role of cabbeling in water densification in the Greenland Basin |
title_full |
Role of cabbeling in water densification in the Greenland Basin |
title_fullStr |
Role of cabbeling in water densification in the Greenland Basin |
title_full_unstemmed |
Role of cabbeling in water densification in the Greenland Basin |
title_sort |
role of cabbeling in water densification in the greenland basin |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/os-5-247-2009 https://noa.gwlb.de/receive/cop_mods_00030123 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030077/os-5-247-2009.pdf https://os.copernicus.org/articles/5/247/2009/os-5-247-2009.pdf |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(-5.000,-5.000,73.500,73.500) |
geographic |
Arctic Barents Sea Bear Island Greenland Greenland Basin |
geographic_facet |
Arctic Barents Sea Bear Island Greenland Greenland Basin |
genre |
Arctic Barents Sea Bear Island Greenland Greenland Sea North Atlantic |
genre_facet |
Arctic Barents Sea Bear Island Greenland Greenland Sea North Atlantic |
op_relation |
Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-5-247-2009 https://noa.gwlb.de/receive/cop_mods_00030123 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030077/os-5-247-2009.pdf https://os.copernicus.org/articles/5/247/2009/os-5-247-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/os-5-247-2009 |
container_title |
Ocean Science |
container_volume |
5 |
container_issue |
3 |
container_start_page |
247 |
op_container_end_page |
257 |
_version_ |
1766332596326760448 |