Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification
Hydrographic surveys in three consecutive seasons in the Irminger Sea in 2001/2002 have revealed six physical regimes (zones) in which different surface mixing and spring re-stratification processes dominate. They are the South Irminger Current, the North Irminger Current, the Central Irminger Sea,...
Published in: | Journal of Marine Systems |
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ftsouthampton:oai:eprints.soton.ac.uk:21032 2023-07-30T04:03:14+02:00 Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification Holliday, N.P. Waniek, J. Davidson, R. Wilson, D. Brown, L. Sanders, R. Pollard, R.T. Allen, J.T. 2006 https://eprints.soton.ac.uk/21032/ unknown Holliday, N.P., Waniek, J., Davidson, R., Wilson, D., Brown, L., Sanders, R., Pollard, R.T. and Allen, J.T. (2006) Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification. Journal of Marine Systems, 59 (3-4), 201-218. (doi:10.1016/j.jmarsys.2005.10.004 <http://dx.doi.org/10.1016/j.jmarsys.2005.10.004>). Article PeerReviewed 2006 ftsouthampton https://doi.org/10.1016/j.jmarsys.2005.10.004 2023-07-09T20:36:45Z Hydrographic surveys in three consecutive seasons in the Irminger Sea in 2001/2002 have revealed six physical regimes (zones) in which different surface mixing and spring re-stratification processes dominate. They are the South Irminger Current, the North Irminger Current, the Central Irminger Sea, the Polar-origin East Greenland Current, the Atlantic-origin East Greenland Current and the Reykjanes Ridge. The variations in restratification processes in particular have significant implications for the timing of shallow spring mixed layer development and therefore the timing and strength of the spring bloom. The relative roles of heat and freshwater in controlling re-stratification are examined for each hydrographic zone, and it is shown that the simplest concept of solar warming generating spring stratification is appropriate for the Irminger Current and the central Irminger Sea. However in the East Greenland Current and the Reykjanes Ridge zones, the springtime arrival of fresh or saline water at the surface dominates re-stratification and generates the earliest and strongest spring blooms of the region. In the cool fresh centre of the Irminger Sea the relatively low chlorophyll-a throughout the year cannot be wholly explained by stratification or nutrient concentrations. Details of the annual cycle in temperature, salinity, chlorophyll-a and nutrients are presented for each hydrographic zone. Article in Journal/Newspaper East Greenland east greenland current Greenland University of Southampton: e-Prints Soton Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Journal of Marine Systems 59 3-4 201 218 |
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Open Polar |
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University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Hydrographic surveys in three consecutive seasons in the Irminger Sea in 2001/2002 have revealed six physical regimes (zones) in which different surface mixing and spring re-stratification processes dominate. They are the South Irminger Current, the North Irminger Current, the Central Irminger Sea, the Polar-origin East Greenland Current, the Atlantic-origin East Greenland Current and the Reykjanes Ridge. The variations in restratification processes in particular have significant implications for the timing of shallow spring mixed layer development and therefore the timing and strength of the spring bloom. The relative roles of heat and freshwater in controlling re-stratification are examined for each hydrographic zone, and it is shown that the simplest concept of solar warming generating spring stratification is appropriate for the Irminger Current and the central Irminger Sea. However in the East Greenland Current and the Reykjanes Ridge zones, the springtime arrival of fresh or saline water at the surface dominates re-stratification and generates the earliest and strongest spring blooms of the region. In the cool fresh centre of the Irminger Sea the relatively low chlorophyll-a throughout the year cannot be wholly explained by stratification or nutrient concentrations. Details of the annual cycle in temperature, salinity, chlorophyll-a and nutrients are presented for each hydrographic zone. |
format |
Article in Journal/Newspaper |
author |
Holliday, N.P. Waniek, J. Davidson, R. Wilson, D. Brown, L. Sanders, R. Pollard, R.T. Allen, J.T. |
spellingShingle |
Holliday, N.P. Waniek, J. Davidson, R. Wilson, D. Brown, L. Sanders, R. Pollard, R.T. Allen, J.T. Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
author_facet |
Holliday, N.P. Waniek, J. Davidson, R. Wilson, D. Brown, L. Sanders, R. Pollard, R.T. Allen, J.T. |
author_sort |
Holliday, N.P. |
title |
Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
title_short |
Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
title_full |
Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
title_fullStr |
Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
title_full_unstemmed |
Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification |
title_sort |
large-scale physical controls on phytoplankton growth in the irminger sea. part 1: hydrographic zones, mixing and stratification |
publishDate |
2006 |
url |
https://eprints.soton.ac.uk/21032/ |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Greenland Irminger Sea Reykjanes |
geographic_facet |
Greenland Irminger Sea Reykjanes |
genre |
East Greenland east greenland current Greenland |
genre_facet |
East Greenland east greenland current Greenland |
op_relation |
Holliday, N.P., Waniek, J., Davidson, R., Wilson, D., Brown, L., Sanders, R., Pollard, R.T. and Allen, J.T. (2006) Large-scale physical controls on phytoplankton growth in the Irminger Sea. Part 1: Hydrographic zones, mixing and stratification. Journal of Marine Systems, 59 (3-4), 201-218. (doi:10.1016/j.jmarsys.2005.10.004 <http://dx.doi.org/10.1016/j.jmarsys.2005.10.004>). |
op_doi |
https://doi.org/10.1016/j.jmarsys.2005.10.004 |
container_title |
Journal of Marine Systems |
container_volume |
59 |
container_issue |
3-4 |
container_start_page |
201 |
op_container_end_page |
218 |
_version_ |
1772814186876764160 |