Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider
We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with hydrographic, bio-optical and oxygen sensors. The Labrador Sea blooms in distinct phases, two of which were observed by Seaglider: the north bloom and the central L...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/303561/ https://nora.nerc.ac.uk/id/eprint/303561/1/FrajkaWilliams_etal_dsr2009.pdf |
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ftnerc:oai:nora.nerc.ac.uk:303561 2023-05-15T16:29:28+02:00 Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider Frajka-Williams, Eleanor Rhines, Peter B. Eriksen, Charles C. 2009-12 application/pdf http://nora.nerc.ac.uk/id/eprint/303561/ https://nora.nerc.ac.uk/id/eprint/303561/1/FrajkaWilliams_etal_dsr2009.pdf en eng https://nora.nerc.ac.uk/id/eprint/303561/1/FrajkaWilliams_etal_dsr2009.pdf Frajka-Williams, Eleanor orcid:0000-0001-8773-7838 Rhines, Peter B.; Eriksen, Charles C. 2009 Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider. Deep Sea Research Part I Oceanographic Research Papers, 56 (12). 2144-2161. https://doi.org/10.1016/j.dsr.2009.07.008 <https://doi.org/10.1016/j.dsr.2009.07.008> Publication - Article PeerReviewed 2009 ftnerc https://doi.org/10.1016/j.dsr.2009.07.008 2023-02-04T19:35:57Z We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with hydrographic, bio-optical and oxygen sensors. The Labrador Sea blooms in distinct phases, two of which were observed by Seaglider: the north bloom and the central Labrador Sea bloom. The dominant north bloom and subsequent zooplankton growth are enabled by the advection of low-salinity water from West Greenland in the strong and eddy-rich separation of the boundary current. The glider observed high fluorescence and oxygen supersaturation within haline-stratified eddy-like features; higher fluorescence was observed at the edges than centers of the eddies. In the central Labrador Sea, the bloom occurred in thermally stratified water. Two regions with elevated subsurface chlorophyll were also observed: a 5 m thin-layer in the southwest Labrador Current, and in the Labrador shelf-break front. The thin layer observations were consistent with vertical shearing of an initially thicker chlorophyll patch. Observations at the front showed high fluorescence down to 100 m depth and aligned with the isopycnals defining the front. The high-resolution Seaglider sampling across the entire Labrador Sea provides first estimates of the scale dependence of coincident biological and physical variables. (C) 2009 Elsevier Ltd. Ail rights reserved. Article in Journal/Newspaper Greenland Labrador Sea Natural Environment Research Council: NERC Open Research Archive Greenland Labrador Shelf ENVELOPE(-58.000,-58.000,56.000,56.000) Deep Sea Research Part I: Oceanographic Research Papers 56 12 2144 2161 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with hydrographic, bio-optical and oxygen sensors. The Labrador Sea blooms in distinct phases, two of which were observed by Seaglider: the north bloom and the central Labrador Sea bloom. The dominant north bloom and subsequent zooplankton growth are enabled by the advection of low-salinity water from West Greenland in the strong and eddy-rich separation of the boundary current. The glider observed high fluorescence and oxygen supersaturation within haline-stratified eddy-like features; higher fluorescence was observed at the edges than centers of the eddies. In the central Labrador Sea, the bloom occurred in thermally stratified water. Two regions with elevated subsurface chlorophyll were also observed: a 5 m thin-layer in the southwest Labrador Current, and in the Labrador shelf-break front. The thin layer observations were consistent with vertical shearing of an initially thicker chlorophyll patch. Observations at the front showed high fluorescence down to 100 m depth and aligned with the isopycnals defining the front. The high-resolution Seaglider sampling across the entire Labrador Sea provides first estimates of the scale dependence of coincident biological and physical variables. (C) 2009 Elsevier Ltd. Ail rights reserved. |
format |
Article in Journal/Newspaper |
author |
Frajka-Williams, Eleanor Rhines, Peter B. Eriksen, Charles C. |
spellingShingle |
Frajka-Williams, Eleanor Rhines, Peter B. Eriksen, Charles C. Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
author_facet |
Frajka-Williams, Eleanor Rhines, Peter B. Eriksen, Charles C. |
author_sort |
Frajka-Williams, Eleanor |
title |
Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
title_short |
Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
title_full |
Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
title_fullStr |
Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
title_full_unstemmed |
Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider |
title_sort |
physical controls and mesoscale variability in the labrador sea spring phytoplankton bloom observed by seaglider |
publishDate |
2009 |
url |
http://nora.nerc.ac.uk/id/eprint/303561/ https://nora.nerc.ac.uk/id/eprint/303561/1/FrajkaWilliams_etal_dsr2009.pdf |
long_lat |
ENVELOPE(-58.000,-58.000,56.000,56.000) |
geographic |
Greenland Labrador Shelf |
geographic_facet |
Greenland Labrador Shelf |
genre |
Greenland Labrador Sea |
genre_facet |
Greenland Labrador Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/303561/1/FrajkaWilliams_etal_dsr2009.pdf Frajka-Williams, Eleanor orcid:0000-0001-8773-7838 Rhines, Peter B.; Eriksen, Charles C. 2009 Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider. Deep Sea Research Part I Oceanographic Research Papers, 56 (12). 2144-2161. https://doi.org/10.1016/j.dsr.2009.07.008 <https://doi.org/10.1016/j.dsr.2009.07.008> |
op_doi |
https://doi.org/10.1016/j.dsr.2009.07.008 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
56 |
container_issue |
12 |
container_start_page |
2144 |
op_container_end_page |
2161 |
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1766019165582262272 |