Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry
The Lofoten Basin is the most eddy rich region in the Norwegian Sea. In this paper, the characteristics of these eddies are investigated from a comprehensive database of nearly two decades of satellite altimeter data (1995-2013) together with Argo profiling floats and surface drifter data. An automa...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.865235 2023-05-15T17:08:08+02:00 Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry Raj, Roshin P Halo, Issufo Johannessen, Johnny Andre Eldevik, Tor Nilsen, Jan Even Ø LATITUDE: 70.000000 * LONGITUDE: 5.000000 2016-10-05 text/tab-separated-values, 15 data points https://doi.pangaea.de/10.1594/PANGAEA.865235 https://doi.org/10.1594/PANGAEA.865235 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.865235 https://doi.org/10.1594/PANGAEA.865235 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Raj, Roshin P; Johannessen, Johnny Andre; Eldevik, Tor; Nilsen, Jan Even Ø; Halo, Issufo (2016): Quantifying mesoscale eddies in the Lofoten Basin. Journal of Geophysical Research: Oceans, 121(7), 4503-4521, https://doi.org/10.1002/2016JC011637 File content File format File name File size Lofoten_Basin Lofoten Basin Uniform resource locator/link to file Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.865235 https://doi.org/10.1002/2016JC011637 2023-01-20T09:07:52Z The Lofoten Basin is the most eddy rich region in the Norwegian Sea. In this paper, the characteristics of these eddies are investigated from a comprehensive database of nearly two decades of satellite altimeter data (1995-2013) together with Argo profiling floats and surface drifter data. An automated method identified 1695/1666 individual anticyclonic/cyclonic eddies in the Lofoten Basin from more than 10,000 altimeter-based eddy observations. The eddies are found to be predominantly generated and residing locally. The spatial distributions of lifetime, occurrence, generation sites, size, intensity, and drift of the eddies are studied in detail. The anticyclonic eddies in the Lofoten Basin are the most long-lived eddies (>60 days), especially in the western part of the basin. We reveal two hotspots of eddy occurrence on either side of the Lofoten Basin. Furthermore, we infer a cyclonic drift of eddies in the western Lofoten Basin. Barotropic energy conversion rates reveals energy transfer from the slope current to the eddies during winter. An automated colocation of surface drifters trapped inside the altimeter-based eddies are used to corroborate the orbital speed of the anticyclonic and cyclonic eddies. Moreover, the vertical structure of the altimeter-based eddies is examined using colocated Argo profiling float profiles. Combination of altimetry, Argo floats, and surface drifter data is therefore considered to be a promising observation-based approach for further studies of the role of eddies in transport of heat and biomass from the slope current to the Lofoten Basin. Dataset Lofoten Norwegian Sea PANGAEA - Data Publisher for Earth & Environmental Science Norwegian Sea Lofoten Lofoten Basin ENVELOPE(4.000,4.000,70.000,70.000) ENVELOPE(5.000000,5.000000,70.000000,70.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
File content File format File name File size Lofoten_Basin Lofoten Basin Uniform resource locator/link to file |
spellingShingle |
File content File format File name File size Lofoten_Basin Lofoten Basin Uniform resource locator/link to file Raj, Roshin P Halo, Issufo Johannessen, Johnny Andre Eldevik, Tor Nilsen, Jan Even Ø Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
topic_facet |
File content File format File name File size Lofoten_Basin Lofoten Basin Uniform resource locator/link to file |
description |
The Lofoten Basin is the most eddy rich region in the Norwegian Sea. In this paper, the characteristics of these eddies are investigated from a comprehensive database of nearly two decades of satellite altimeter data (1995-2013) together with Argo profiling floats and surface drifter data. An automated method identified 1695/1666 individual anticyclonic/cyclonic eddies in the Lofoten Basin from more than 10,000 altimeter-based eddy observations. The eddies are found to be predominantly generated and residing locally. The spatial distributions of lifetime, occurrence, generation sites, size, intensity, and drift of the eddies are studied in detail. The anticyclonic eddies in the Lofoten Basin are the most long-lived eddies (>60 days), especially in the western part of the basin. We reveal two hotspots of eddy occurrence on either side of the Lofoten Basin. Furthermore, we infer a cyclonic drift of eddies in the western Lofoten Basin. Barotropic energy conversion rates reveals energy transfer from the slope current to the eddies during winter. An automated colocation of surface drifters trapped inside the altimeter-based eddies are used to corroborate the orbital speed of the anticyclonic and cyclonic eddies. Moreover, the vertical structure of the altimeter-based eddies is examined using colocated Argo profiling float profiles. Combination of altimetry, Argo floats, and surface drifter data is therefore considered to be a promising observation-based approach for further studies of the role of eddies in transport of heat and biomass from the slope current to the Lofoten Basin. |
format |
Dataset |
author |
Raj, Roshin P Halo, Issufo Johannessen, Johnny Andre Eldevik, Tor Nilsen, Jan Even Ø |
author_facet |
Raj, Roshin P Halo, Issufo Johannessen, Johnny Andre Eldevik, Tor Nilsen, Jan Even Ø |
author_sort |
Raj, Roshin P |
title |
Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
title_short |
Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
title_full |
Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
title_fullStr |
Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
title_full_unstemmed |
Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry |
title_sort |
mesoscale ocean eddy dataset in the lofoten basin from satellite altimetry |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.865235 https://doi.org/10.1594/PANGAEA.865235 |
op_coverage |
LATITUDE: 70.000000 * LONGITUDE: 5.000000 |
long_lat |
ENVELOPE(4.000,4.000,70.000,70.000) ENVELOPE(5.000000,5.000000,70.000000,70.000000) |
geographic |
Norwegian Sea Lofoten Lofoten Basin |
geographic_facet |
Norwegian Sea Lofoten Lofoten Basin |
genre |
Lofoten Norwegian Sea |
genre_facet |
Lofoten Norwegian Sea |
op_source |
Supplement to: Raj, Roshin P; Johannessen, Johnny Andre; Eldevik, Tor; Nilsen, Jan Even Ø; Halo, Issufo (2016): Quantifying mesoscale eddies in the Lofoten Basin. Journal of Geophysical Research: Oceans, 121(7), 4503-4521, https://doi.org/10.1002/2016JC011637 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.865235 https://doi.org/10.1594/PANGAEA.865235 |
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.865235 https://doi.org/10.1002/2016JC011637 |
_version_ |
1766063778383790080 |