Biogeochemical variability in the southern Ross Sea as observed by a glider deployment
High-resolution autonomous glider data (including temperature, salinity, fluorescence, and optical backscatter) collected during the 2010-2011 austral summer identified variations in phytoplankton biomass along two glider sections near 76 degrees 40'S. Sea surface temperatures were warmer durin...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1861 2023-06-11T04:05:53+02:00 Biogeochemical variability in the southern Ross Sea as observed by a glider deployment Kaufman, DE Friedrichs, MAM Smith, WJ, Jr. Queste, BY Heywood, KJ 2014-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/861 doi: 10.1016/j.dsr.2014.06.011 https://scholarworks.wm.edu/context/vimsarticles/article/1861/viewcontent/1_s2.0_S0967063714001216_main.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/861 doi: 10.1016/j.dsr.2014.06.011 https://scholarworks.wm.edu/context/vimsarticles/article/1861/viewcontent/1_s2.0_S0967063714001216_main.pdf VIMS Articles Phaeocystis-Antarctica Prymnesiophyceae Fragilariopsis-Cylindrus Ocean Phytoplankton Pacific-Ocean Blooms Water Photophysiology Distributions Productivity Abundance Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries text 2014 ftwilliammarycol https://doi.org/10.1016/j.dsr.2014.06.011 2023-05-04T17:49:25Z High-resolution autonomous glider data (including temperature, salinity, fluorescence, and optical backscatter) collected during the 2010-2011 austral summer identified variations in phytoplankton biomass along two glider sections near 76 degrees 40'S. Sea surface temperatures were warmer during the latter, westward section, while mixed layer depths were deeper. Substantial quantities of Modified Circumpolar Deep Water, identified by neutral density criteria, were located within both sections. Chlorophyll (Chl) concentrations computed from fluorescence exhibited daily quenching near the surface, and deep chlorophyll concentrations at 200 m became periodically elevated, suggesting substantial export on small space and time scales. The concentrations of particulate organic carbon (POC) computed from backscatter increased abruptly during the latter, westward section, concurrent with a decrease in chlorophyll. These higher POC:Chl ratios were not strongly correlated with presence of MCDW or with shallower mixed layer depths, but were strongly associated with higher surface temperatures and wind speed. The observed POC:Chl increase suggests a marked spatial and temporal transition between a Phaeocystis antarctica-dominated assemblage characterized by modest POC:Chl ratios to a diatom-dominated assemblage. Finally, a subsampling analysis highlights the capability of high-resolution glider data to resolve these biological/physical parameter correlations that are not discernible from lower frequency data typical of traditional cruise stations. (C) 2014 The Authors. Published by Elsevier Ltd. Text Antarc* Antarctica Ross Sea W&M ScholarWorks Austral Ross Sea Pacific Deep Sea Research Part I: Oceanographic Research Papers 92 93 106 |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
Phaeocystis-Antarctica Prymnesiophyceae Fragilariopsis-Cylindrus Ocean Phytoplankton Pacific-Ocean Blooms Water Photophysiology Distributions Productivity Abundance Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
spellingShingle |
Phaeocystis-Antarctica Prymnesiophyceae Fragilariopsis-Cylindrus Ocean Phytoplankton Pacific-Ocean Blooms Water Photophysiology Distributions Productivity Abundance Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries Kaufman, DE Friedrichs, MAM Smith, WJ, Jr. Queste, BY Heywood, KJ Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
topic_facet |
Phaeocystis-Antarctica Prymnesiophyceae Fragilariopsis-Cylindrus Ocean Phytoplankton Pacific-Ocean Blooms Water Photophysiology Distributions Productivity Abundance Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
description |
High-resolution autonomous glider data (including temperature, salinity, fluorescence, and optical backscatter) collected during the 2010-2011 austral summer identified variations in phytoplankton biomass along two glider sections near 76 degrees 40'S. Sea surface temperatures were warmer during the latter, westward section, while mixed layer depths were deeper. Substantial quantities of Modified Circumpolar Deep Water, identified by neutral density criteria, were located within both sections. Chlorophyll (Chl) concentrations computed from fluorescence exhibited daily quenching near the surface, and deep chlorophyll concentrations at 200 m became periodically elevated, suggesting substantial export on small space and time scales. The concentrations of particulate organic carbon (POC) computed from backscatter increased abruptly during the latter, westward section, concurrent with a decrease in chlorophyll. These higher POC:Chl ratios were not strongly correlated with presence of MCDW or with shallower mixed layer depths, but were strongly associated with higher surface temperatures and wind speed. The observed POC:Chl increase suggests a marked spatial and temporal transition between a Phaeocystis antarctica-dominated assemblage characterized by modest POC:Chl ratios to a diatom-dominated assemblage. Finally, a subsampling analysis highlights the capability of high-resolution glider data to resolve these biological/physical parameter correlations that are not discernible from lower frequency data typical of traditional cruise stations. (C) 2014 The Authors. Published by Elsevier Ltd. |
format |
Text |
author |
Kaufman, DE Friedrichs, MAM Smith, WJ, Jr. Queste, BY Heywood, KJ |
author_facet |
Kaufman, DE Friedrichs, MAM Smith, WJ, Jr. Queste, BY Heywood, KJ |
author_sort |
Kaufman, DE |
title |
Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
title_short |
Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
title_full |
Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
title_fullStr |
Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
title_full_unstemmed |
Biogeochemical variability in the southern Ross Sea as observed by a glider deployment |
title_sort |
biogeochemical variability in the southern ross sea as observed by a glider deployment |
publisher |
W&M ScholarWorks |
publishDate |
2014 |
url |
https://scholarworks.wm.edu/vimsarticles/861 https://scholarworks.wm.edu/context/vimsarticles/article/1861/viewcontent/1_s2.0_S0967063714001216_main.pdf |
geographic |
Austral Ross Sea Pacific |
geographic_facet |
Austral Ross Sea Pacific |
genre |
Antarc* Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Ross Sea |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/861 doi: 10.1016/j.dsr.2014.06.011 https://scholarworks.wm.edu/context/vimsarticles/article/1861/viewcontent/1_s2.0_S0967063714001216_main.pdf |
op_doi |
https://doi.org/10.1016/j.dsr.2014.06.011 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
92 |
container_start_page |
93 |
op_container_end_page |
106 |
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1768377554825117696 |