Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge
Using vessel-mounted acoustic Doppler current profiler data from four different routes between Scotland, Iceland and Greenland, we map out the mean flow of water in the top 400 m of the northeastern North Atlantic. The poleward transport east of the Reykjanes Ridge (RR) decreases from ~8.5 to 10 Sv...
Published in: | Tellus A: Dynamic Meteorology and Oceanography |
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Language: | English |
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Online Access: | https://hdl.handle.net/1956/12059 https://doi.org/10.3402/tellusa.v67.28067 |
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ftunivbergen:oai:bora.uib.no:1956/12059 2023-05-15T16:11:12+02:00 Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge Childers, Katelin Flagg, Charles Rossby, Thomas Schrum, Corinna 2016-04-07T08:54:02Z application/pdf https://hdl.handle.net/1956/12059 https://doi.org/10.3402/tellusa.v67.28067 eng eng Co-Action Publishing urn:issn:1600-0870 https://hdl.handle.net/1956/12059 https://doi.org/10.3402/tellusa.v67.28067 cristin:1310851 Attribution CC BY 4.0 http://creativecommons.org/licenses/by/4.0 Copyright 2015 K. H. Childers et al. ADCP current measurements northeast Atlantic transport patterns repeat sampling from vessels in regular traffic Faroes–Shetland Channel Iceland–Faroes Ridge VDP::Matematikk og Naturvitenskap: 400 Peer reviewed Journal article 2016 ftunivbergen https://doi.org/10.3402/tellusa.v67.28067 2023-03-14T17:42:58Z Using vessel-mounted acoustic Doppler current profiler data from four different routes between Scotland, Iceland and Greenland, we map out the mean flow of water in the top 400 m of the northeastern North Atlantic. The poleward transport east of the Reykjanes Ridge (RR) decreases from ~8.5 to 10 Sv (1 Sverdrup=106 m3 s−1) at 59.5°N to 61°N to 6 Sv crossing the Iceland–Faroes–Scotland Ridge. The two longest ~1200 km transport integrals have 1.4–0.94 Sv uncertainty, respectively. The overall decrease in transport can in large measure be accounted for by a ~1.5 Sv flow across the RR into the Irminger Sea north of 59.5°N and by a ~0.5 Sv overflow of dense water along the Iceland–Faroes Ridge. A remaining 0.5 Sv flux divergence is at the edge of detectability, but if real could be accounted for through wintertime convection to >400 m and densification of upper ocean water. The topography of the Iceland Basin and the banks west of Scotland play a fundamental role in controlling flow pathways towards and past Iceland, the Faroes and Scotland. Most water flows north unimpeded through the Iceland Basin, some in the centre of the basin along the Maury Channel, and some along Hatton Bank, turning east along the northern slopes of George Bligh Bank, Lousy Bank and Bill Bailey’s Bank, whereupon the flow splits with ~3 Sv turning northwest towards the Iceland–Faroes Ridge and the remainder continuing east towards and north of the Wyville-Thomson Ridge (WTR) to the Scotland slope thereby increasing the Slope Current transport from ~1.5 Sv south of the WTR to 3.5 Sv in the Faroes–Shetland Channel. publishedVersion Article in Journal/Newspaper Faroes Greenland Iceland North Atlantic Northeast Atlantic University of Bergen: Bergen Open Research Archive (BORA-UiB) George Bligh Bank ENVELOPE(-13.667,-13.667,58.833,58.833) Greenland Hatton Bank ENVELOPE(-18.000,-18.000,58.583,58.583) Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Lousy Bank ENVELOPE(-12.583,-12.583,60.417,60.417) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Wyville Thomson Ridge ENVELOPE(-7.500,-7.500,60.250,60.250) Wyville-Thomson Ridge ENVELOPE(-7.250,-7.250,60.000,60.000) Tellus A: Dynamic Meteorology and Oceanography 67 1 28067 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
ADCP current measurements northeast Atlantic transport patterns repeat sampling from vessels in regular traffic Faroes–Shetland Channel Iceland–Faroes Ridge VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
ADCP current measurements northeast Atlantic transport patterns repeat sampling from vessels in regular traffic Faroes–Shetland Channel Iceland–Faroes Ridge VDP::Matematikk og Naturvitenskap: 400 Childers, Katelin Flagg, Charles Rossby, Thomas Schrum, Corinna Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
topic_facet |
ADCP current measurements northeast Atlantic transport patterns repeat sampling from vessels in regular traffic Faroes–Shetland Channel Iceland–Faroes Ridge VDP::Matematikk og Naturvitenskap: 400 |
description |
Using vessel-mounted acoustic Doppler current profiler data from four different routes between Scotland, Iceland and Greenland, we map out the mean flow of water in the top 400 m of the northeastern North Atlantic. The poleward transport east of the Reykjanes Ridge (RR) decreases from ~8.5 to 10 Sv (1 Sverdrup=106 m3 s−1) at 59.5°N to 61°N to 6 Sv crossing the Iceland–Faroes–Scotland Ridge. The two longest ~1200 km transport integrals have 1.4–0.94 Sv uncertainty, respectively. The overall decrease in transport can in large measure be accounted for by a ~1.5 Sv flow across the RR into the Irminger Sea north of 59.5°N and by a ~0.5 Sv overflow of dense water along the Iceland–Faroes Ridge. A remaining 0.5 Sv flux divergence is at the edge of detectability, but if real could be accounted for through wintertime convection to >400 m and densification of upper ocean water. The topography of the Iceland Basin and the banks west of Scotland play a fundamental role in controlling flow pathways towards and past Iceland, the Faroes and Scotland. Most water flows north unimpeded through the Iceland Basin, some in the centre of the basin along the Maury Channel, and some along Hatton Bank, turning east along the northern slopes of George Bligh Bank, Lousy Bank and Bill Bailey’s Bank, whereupon the flow splits with ~3 Sv turning northwest towards the Iceland–Faroes Ridge and the remainder continuing east towards and north of the Wyville-Thomson Ridge (WTR) to the Scotland slope thereby increasing the Slope Current transport from ~1.5 Sv south of the WTR to 3.5 Sv in the Faroes–Shetland Channel. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Childers, Katelin Flagg, Charles Rossby, Thomas Schrum, Corinna |
author_facet |
Childers, Katelin Flagg, Charles Rossby, Thomas Schrum, Corinna |
author_sort |
Childers, Katelin |
title |
Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
title_short |
Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
title_full |
Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
title_fullStr |
Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
title_full_unstemmed |
Directly measured currents and estimated transport pathways of Atlantic Water between 59.58N and the Iceland-Faroes-Scotland Ridge |
title_sort |
directly measured currents and estimated transport pathways of atlantic water between 59.58n and the iceland-faroes-scotland ridge |
publisher |
Co-Action Publishing |
publishDate |
2016 |
url |
https://hdl.handle.net/1956/12059 https://doi.org/10.3402/tellusa.v67.28067 |
long_lat |
ENVELOPE(-13.667,-13.667,58.833,58.833) ENVELOPE(-18.000,-18.000,58.583,58.583) ENVELOPE(-34.041,-34.041,63.054,63.054) ENVELOPE(-12.583,-12.583,60.417,60.417) ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-7.500,-7.500,60.250,60.250) ENVELOPE(-7.250,-7.250,60.000,60.000) |
geographic |
George Bligh Bank Greenland Hatton Bank Irminger Sea Lousy Bank Reykjanes Wyville Thomson Ridge Wyville-Thomson Ridge |
geographic_facet |
George Bligh Bank Greenland Hatton Bank Irminger Sea Lousy Bank Reykjanes Wyville Thomson Ridge Wyville-Thomson Ridge |
genre |
Faroes Greenland Iceland North Atlantic Northeast Atlantic |
genre_facet |
Faroes Greenland Iceland North Atlantic Northeast Atlantic |
op_relation |
urn:issn:1600-0870 https://hdl.handle.net/1956/12059 https://doi.org/10.3402/tellusa.v67.28067 cristin:1310851 |
op_rights |
Attribution CC BY 4.0 http://creativecommons.org/licenses/by/4.0 Copyright 2015 K. H. Childers et al. |
op_doi |
https://doi.org/10.3402/tellusa.v67.28067 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
67 |
container_issue |
1 |
container_start_page |
28067 |
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1765996325655019520 |