Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996
From observations on yearly cruises to the central Greenland Sea between 1993 and 1996, conclusions are drawn with respect to winter convection and bottom water renewal. The data indicate that winter convection was extremely weak after 1993, not even ventilating the intermediate waters. This is rema...
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PANGAEA
1998
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.752260 https://doi.org/10.1594/PANGAEA.752260 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.752260 2024-09-15T18:09:02+00:00 Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 Budéus, Gereon Schneider, Wolfgang Krause, Gunther MEDIAN LATITUDE: 74.627095 * MEDIAN LONGITUDE: 0.231394 * SOUTH-BOUND LATITUDE: 63.146900 * WEST-BOUND LONGITUDE: -13.945000 * NORTH-BOUND LATITUDE: 80.497500 * EAST-BOUND LONGITUDE: 18.535200 * DATE/TIME START: 1993-04-01T00:58:00 * DATE/TIME END: 1996-10-02T06:00:00 1998 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.752260 https://doi.org/10.1594/PANGAEA.752260 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.752260 https://doi.org/10.1594/PANGAEA.752260 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Budéus, Gereon; Schneider, Wolfgang; Krause, Gunther (1998): Winter convective events and bottom water warming in the Greenland Sea. Journal of Geophysical Research: Oceans, 103(C9), 18513-18527, https://doi.org/10.1029/98JC01563 ARK-IX/1b ARK-X/1 ARK-XI/2 AWI_PhyOce CTD/Rosette CTD-RO ESOP European subpolar ocean programme : sea ice-ocean interactions JGOFS Joint Global Ocean Flux Study MULT Multiple investigations North Greenland Sea Norwegian Sea Petr Kottsov Physical Oceanography @ AWI PK-ARK-XII PK-XII/01-1 PK-XII/01-2 PK-XII/02 PK-XII/03 PK-XII/04 PK-XII/05 PK-XII/06 PK-XII/07 PK-XII/08-1 PK-XII/08-2 PK-XII/09 PK-XII/10 PK-XII/11 PK-XII/12 PK-XII/13 PK-XII/14 PK-XII/15 PK-XII/16 PK-XII/17 PK-XII/18 PK-XII/19 PK-XII/20 PK-XII/21 PK-XII/22 PK-XII/23 PK-XII/24 PK-XII/25 PK-XII/26 PK-XII/27 PK-XII/28 PK-XII/29 PK-XII/33 PK-XII/34 dataset publication series 1998 ftpangaea https://doi.org/10.1594/PANGAEA.75226010.1029/98JC01563 2024-07-24T02:31:20Z From observations on yearly cruises to the central Greenland Sea between 1993 and 1996, conclusions are drawn with respect to winter convection and bottom water renewal. The data indicate that winter convection was extremely weak after 1993, not even ventilating the intermediate waters. This is remarkable, since the salinities in the upper layers increased considerably between 1993 and 1995, thus providing presumably favorable conditions for winter convection. With the absence of deep reaching winter convective events, the temperatures in the deeper waters of the Greenland Gyre increased steadily by about 0.03 K between 1993 and 1996. We conclude from the development of mainly the thermal structure on a zonal transect that an explanation for the temperature increase can be given by a large-scale downward water movement of about 150 m/yr in the central Greenland Sea. The data indicate that this process is independent of changes in the dynamically induced density distribution. It is therefore possible that a downward movement, perhaps masked by other processes, may continue for many years. If this is the case, resulting flushing times would be of the order of 20-30 years only. The presence of a large-scale circulation cell with downward movement in the central Greenland Gyre would explain the observed warming of the bottom waters without the demand for an actually active heat source. It is also in accordance with the observed increase of chemical tracer concentrations in the deep waters. Other/Unknown Material Greenland Greenland Sea North Greenland Norwegian Sea Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-13.945000,18.535200,80.497500,63.146900) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ARK-IX/1b ARK-X/1 ARK-XI/2 AWI_PhyOce CTD/Rosette CTD-RO ESOP European subpolar ocean programme : sea ice-ocean interactions JGOFS Joint Global Ocean Flux Study MULT Multiple investigations North Greenland Sea Norwegian Sea Petr Kottsov Physical Oceanography @ AWI PK-ARK-XII PK-XII/01-1 PK-XII/01-2 PK-XII/02 PK-XII/03 PK-XII/04 PK-XII/05 PK-XII/06 PK-XII/07 PK-XII/08-1 PK-XII/08-2 PK-XII/09 PK-XII/10 PK-XII/11 PK-XII/12 PK-XII/13 PK-XII/14 PK-XII/15 PK-XII/16 PK-XII/17 PK-XII/18 PK-XII/19 PK-XII/20 PK-XII/21 PK-XII/22 PK-XII/23 PK-XII/24 PK-XII/25 PK-XII/26 PK-XII/27 PK-XII/28 PK-XII/29 PK-XII/33 PK-XII/34 |
spellingShingle |
ARK-IX/1b ARK-X/1 ARK-XI/2 AWI_PhyOce CTD/Rosette CTD-RO ESOP European subpolar ocean programme : sea ice-ocean interactions JGOFS Joint Global Ocean Flux Study MULT Multiple investigations North Greenland Sea Norwegian Sea Petr Kottsov Physical Oceanography @ AWI PK-ARK-XII PK-XII/01-1 PK-XII/01-2 PK-XII/02 PK-XII/03 PK-XII/04 PK-XII/05 PK-XII/06 PK-XII/07 PK-XII/08-1 PK-XII/08-2 PK-XII/09 PK-XII/10 PK-XII/11 PK-XII/12 PK-XII/13 PK-XII/14 PK-XII/15 PK-XII/16 PK-XII/17 PK-XII/18 PK-XII/19 PK-XII/20 PK-XII/21 PK-XII/22 PK-XII/23 PK-XII/24 PK-XII/25 PK-XII/26 PK-XII/27 PK-XII/28 PK-XII/29 PK-XII/33 PK-XII/34 Budéus, Gereon Schneider, Wolfgang Krause, Gunther Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
topic_facet |
ARK-IX/1b ARK-X/1 ARK-XI/2 AWI_PhyOce CTD/Rosette CTD-RO ESOP European subpolar ocean programme : sea ice-ocean interactions JGOFS Joint Global Ocean Flux Study MULT Multiple investigations North Greenland Sea Norwegian Sea Petr Kottsov Physical Oceanography @ AWI PK-ARK-XII PK-XII/01-1 PK-XII/01-2 PK-XII/02 PK-XII/03 PK-XII/04 PK-XII/05 PK-XII/06 PK-XII/07 PK-XII/08-1 PK-XII/08-2 PK-XII/09 PK-XII/10 PK-XII/11 PK-XII/12 PK-XII/13 PK-XII/14 PK-XII/15 PK-XII/16 PK-XII/17 PK-XII/18 PK-XII/19 PK-XII/20 PK-XII/21 PK-XII/22 PK-XII/23 PK-XII/24 PK-XII/25 PK-XII/26 PK-XII/27 PK-XII/28 PK-XII/29 PK-XII/33 PK-XII/34 |
description |
From observations on yearly cruises to the central Greenland Sea between 1993 and 1996, conclusions are drawn with respect to winter convection and bottom water renewal. The data indicate that winter convection was extremely weak after 1993, not even ventilating the intermediate waters. This is remarkable, since the salinities in the upper layers increased considerably between 1993 and 1995, thus providing presumably favorable conditions for winter convection. With the absence of deep reaching winter convective events, the temperatures in the deeper waters of the Greenland Gyre increased steadily by about 0.03 K between 1993 and 1996. We conclude from the development of mainly the thermal structure on a zonal transect that an explanation for the temperature increase can be given by a large-scale downward water movement of about 150 m/yr in the central Greenland Sea. The data indicate that this process is independent of changes in the dynamically induced density distribution. It is therefore possible that a downward movement, perhaps masked by other processes, may continue for many years. If this is the case, resulting flushing times would be of the order of 20-30 years only. The presence of a large-scale circulation cell with downward movement in the central Greenland Gyre would explain the observed warming of the bottom waters without the demand for an actually active heat source. It is also in accordance with the observed increase of chemical tracer concentrations in the deep waters. |
format |
Other/Unknown Material |
author |
Budéus, Gereon Schneider, Wolfgang Krause, Gunther |
author_facet |
Budéus, Gereon Schneider, Wolfgang Krause, Gunther |
author_sort |
Budéus, Gereon |
title |
Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
title_short |
Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
title_full |
Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
title_fullStr |
Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
title_full_unstemmed |
Physical oceanography on yearly cruises to the central Greenland Sea between 1993 and 1996 |
title_sort |
physical oceanography on yearly cruises to the central greenland sea between 1993 and 1996 |
publisher |
PANGAEA |
publishDate |
1998 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.752260 https://doi.org/10.1594/PANGAEA.752260 |
op_coverage |
MEDIAN LATITUDE: 74.627095 * MEDIAN LONGITUDE: 0.231394 * SOUTH-BOUND LATITUDE: 63.146900 * WEST-BOUND LONGITUDE: -13.945000 * NORTH-BOUND LATITUDE: 80.497500 * EAST-BOUND LONGITUDE: 18.535200 * DATE/TIME START: 1993-04-01T00:58:00 * DATE/TIME END: 1996-10-02T06:00:00 |
long_lat |
ENVELOPE(-13.945000,18.535200,80.497500,63.146900) |
genre |
Greenland Greenland Sea North Greenland Norwegian Sea Sea ice |
genre_facet |
Greenland Greenland Sea North Greenland Norwegian Sea Sea ice |
op_source |
Supplement to: Budéus, Gereon; Schneider, Wolfgang; Krause, Gunther (1998): Winter convective events and bottom water warming in the Greenland Sea. Journal of Geophysical Research: Oceans, 103(C9), 18513-18527, https://doi.org/10.1029/98JC01563 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.752260 https://doi.org/10.1594/PANGAEA.752260 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.75226010.1029/98JC01563 |
_version_ |
1810446431567216640 |