Time series of freshwater-transport on the East Greenland Shelf at 74N
The major flux of freshwater from the Arctic Ocean to the convective regions in the Nordic Seas and the Northern North Atlantic is linked to the shelf branches of the East Greenland Current. This flux is partitioned into a solid (ice) and a liquid phase. Time series measurements of the liquid compon...
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Borntraeger
2005
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Online Access: | https://doi.org/10.1127/0941-2948/2005/0079 https://doaj.org/article/50d7cb8e92244e2fa3d9e84b750ccc6d |
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ftdoajarticles:oai:doaj.org/article:50d7cb8e92244e2fa3d9e84b750ccc6d 2024-09-15T17:53:50+00:00 Time series of freshwater-transport on the East Greenland Shelf at 74N Jürgen Holfort Jens Meincke 2005-12-01T00:00:00Z https://doi.org/10.1127/0941-2948/2005/0079 https://doaj.org/article/50d7cb8e92244e2fa3d9e84b750ccc6d EN eng Borntraeger http://dx.doi.org/10.1127/0941-2948/2005/0079 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/0941-2948/2005/0079 https://doaj.org/article/50d7cb8e92244e2fa3d9e84b750ccc6d Meteorologische Zeitschrift, Vol 14, Iss 6, Pp 703-710 (2005) Meteorology. Climatology QC851-999 article 2005 ftdoajarticles https://doi.org/10.1127/0941-2948/2005/0079 2024-08-05T17:50:04Z The major flux of freshwater from the Arctic Ocean to the convective regions in the Nordic Seas and the Northern North Atlantic is linked to the shelf branches of the East Greenland Current. This flux is partitioned into a solid (ice) and a liquid phase. Time series measurements of the liquid component are hard to obtain since the seasonally varying ice cover prevents the use of standard moored instrumentation in the near surface gradient layers where most of the freshwater transport takes place. Using 40m-polyethylene tubes to protect sensors and buoyancy in the upper portion of the moorings and employing a bottom-mounted acoustic Doppler current pro filer have yielded the first time series of upper layer temperatures, salinities and currents for a location at the outer East Greenland shelf at 74°N. The observed seasonal variability suggests the dominance of local warming/cooling and melting/freezing rather than advective processes. Estimates of liquid freshwater transport yield a mean of 869 km3/a, whereas the total freshwater transport amounts to a value between 1250 to 1750 km3/a. Article in Journal/Newspaper Arctic Ocean East Greenland east greenland current Greenland Nordic Seas North Atlantic Directory of Open Access Journals: DOAJ Articles Meteorologische Zeitschrift 14 6 703 710 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Meteorology. Climatology QC851-999 |
spellingShingle |
Meteorology. Climatology QC851-999 Jürgen Holfort Jens Meincke Time series of freshwater-transport on the East Greenland Shelf at 74N |
topic_facet |
Meteorology. Climatology QC851-999 |
description |
The major flux of freshwater from the Arctic Ocean to the convective regions in the Nordic Seas and the Northern North Atlantic is linked to the shelf branches of the East Greenland Current. This flux is partitioned into a solid (ice) and a liquid phase. Time series measurements of the liquid component are hard to obtain since the seasonally varying ice cover prevents the use of standard moored instrumentation in the near surface gradient layers where most of the freshwater transport takes place. Using 40m-polyethylene tubes to protect sensors and buoyancy in the upper portion of the moorings and employing a bottom-mounted acoustic Doppler current pro filer have yielded the first time series of upper layer temperatures, salinities and currents for a location at the outer East Greenland shelf at 74°N. The observed seasonal variability suggests the dominance of local warming/cooling and melting/freezing rather than advective processes. Estimates of liquid freshwater transport yield a mean of 869 km3/a, whereas the total freshwater transport amounts to a value between 1250 to 1750 km3/a. |
format |
Article in Journal/Newspaper |
author |
Jürgen Holfort Jens Meincke |
author_facet |
Jürgen Holfort Jens Meincke |
author_sort |
Jürgen Holfort |
title |
Time series of freshwater-transport on the East Greenland Shelf at 74N |
title_short |
Time series of freshwater-transport on the East Greenland Shelf at 74N |
title_full |
Time series of freshwater-transport on the East Greenland Shelf at 74N |
title_fullStr |
Time series of freshwater-transport on the East Greenland Shelf at 74N |
title_full_unstemmed |
Time series of freshwater-transport on the East Greenland Shelf at 74N |
title_sort |
time series of freshwater-transport on the east greenland shelf at 74n |
publisher |
Borntraeger |
publishDate |
2005 |
url |
https://doi.org/10.1127/0941-2948/2005/0079 https://doaj.org/article/50d7cb8e92244e2fa3d9e84b750ccc6d |
genre |
Arctic Ocean East Greenland east greenland current Greenland Nordic Seas North Atlantic |
genre_facet |
Arctic Ocean East Greenland east greenland current Greenland Nordic Seas North Atlantic |
op_source |
Meteorologische Zeitschrift, Vol 14, Iss 6, Pp 703-710 (2005) |
op_relation |
http://dx.doi.org/10.1127/0941-2948/2005/0079 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/0941-2948/2005/0079 https://doaj.org/article/50d7cb8e92244e2fa3d9e84b750ccc6d |
op_doi |
https://doi.org/10.1127/0941-2948/2005/0079 |
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Meteorologische Zeitschrift |
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14 |
container_issue |
6 |
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703 |
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710 |
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1810429928269676544 |