Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean
Abstract An extensive data set of measurements within the Chukchi and Beaufort Seas is used to characterize the optical properties of seawater associated with different phytoplankton communities. Hierarchical cluster analysis of diagnostic pigment concentrations partitioned stations into four distin...
Published in: | Limnology and Oceanography |
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crwiley:10.1002/lno.11199 2024-06-23T07:50:13+00:00 Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean Reynolds, Rick A. Stramski, Dariusz National Science Foundation National Oceanic and Atmospheric Administration National Aeronautics and Space Administration 2019 http://dx.doi.org/10.1002/lno.11199 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11199 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11199 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11199 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ http://creativecommons.org/licenses/by-nc/4.0/ Limnology and Oceanography volume 64, issue 6, page 2478-2496 ISSN 0024-3590 1939-5590 journal-article 2019 crwiley https://doi.org/10.1002/lno.11199 2024-05-31T08:14:41Z Abstract An extensive data set of measurements within the Chukchi and Beaufort Seas is used to characterize the optical properties of seawater associated with different phytoplankton communities. Hierarchical cluster analysis of diagnostic pigment concentrations partitioned stations into four distinct surface phytoplankton communities based on taxonomic composition and average cell size. Concurrent optical measurements of spectral absorption and backscattering coefficients and remote‐sensing reflectance were used to characterize the magnitudes and spectral shapes of seawater optical properties associated with each phytoplankton assemblage. The results demonstrate measurable differences among communities in the average spectral shapes of the phytoplankton absorption coefficient. Similar or smaller differences were also observed in the spectral shapes of nonphytoplankton absorption coefficients and the particulate backscattering coefficient. Phytoplankton on average, however, contributed only 25% or less to the total absorption coefficient of seawater. Our analyses indicate that the interplay between the magnitudes and relative contributions of all optically significant constituents generally dampens any influence of varying phytoplankton absorption spectral shapes on the total absorption coefficient, yet there is still a marked discrimination observed in the spectral shape of the ratio of the total backscattering to total absorption coefficient and remote‐sensing reflectance among the phytoplankton assemblages. These spectral variations arise mainly from differences in the bio‐optical environment in which specific communities were found, as opposed to differences in the spectral shapes of phytoplankton optical properties per se. These results suggest potential approaches for the development of algorithms to assess phytoplankton community composition from measurements of seawater optical properties in western Arctic waters. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Phytoplankton Wiley Online Library Arctic Arctic Ocean Limnology and Oceanography 64 6 2478 2496 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract An extensive data set of measurements within the Chukchi and Beaufort Seas is used to characterize the optical properties of seawater associated with different phytoplankton communities. Hierarchical cluster analysis of diagnostic pigment concentrations partitioned stations into four distinct surface phytoplankton communities based on taxonomic composition and average cell size. Concurrent optical measurements of spectral absorption and backscattering coefficients and remote‐sensing reflectance were used to characterize the magnitudes and spectral shapes of seawater optical properties associated with each phytoplankton assemblage. The results demonstrate measurable differences among communities in the average spectral shapes of the phytoplankton absorption coefficient. Similar or smaller differences were also observed in the spectral shapes of nonphytoplankton absorption coefficients and the particulate backscattering coefficient. Phytoplankton on average, however, contributed only 25% or less to the total absorption coefficient of seawater. Our analyses indicate that the interplay between the magnitudes and relative contributions of all optically significant constituents generally dampens any influence of varying phytoplankton absorption spectral shapes on the total absorption coefficient, yet there is still a marked discrimination observed in the spectral shape of the ratio of the total backscattering to total absorption coefficient and remote‐sensing reflectance among the phytoplankton assemblages. These spectral variations arise mainly from differences in the bio‐optical environment in which specific communities were found, as opposed to differences in the spectral shapes of phytoplankton optical properties per se. These results suggest potential approaches for the development of algorithms to assess phytoplankton community composition from measurements of seawater optical properties in western Arctic waters. |
author2 |
National Science Foundation National Oceanic and Atmospheric Administration National Aeronautics and Space Administration |
format |
Article in Journal/Newspaper |
author |
Reynolds, Rick A. Stramski, Dariusz |
spellingShingle |
Reynolds, Rick A. Stramski, Dariusz Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
author_facet |
Reynolds, Rick A. Stramski, Dariusz |
author_sort |
Reynolds, Rick A. |
title |
Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
title_short |
Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
title_full |
Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
title_fullStr |
Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
title_full_unstemmed |
Optical characterization of marine phytoplankton assemblages within surface waters of the western Arctic Ocean |
title_sort |
optical characterization of marine phytoplankton assemblages within surface waters of the western arctic ocean |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/lno.11199 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11199 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11199 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11199 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Chukchi Phytoplankton |
genre_facet |
Arctic Arctic Ocean Chukchi Phytoplankton |
op_source |
Limnology and Oceanography volume 64, issue 6, page 2478-2496 ISSN 0024-3590 1939-5590 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1002/lno.11199 |
container_title |
Limnology and Oceanography |
container_volume |
64 |
container_issue |
6 |
container_start_page |
2478 |
op_container_end_page |
2496 |
_version_ |
1802641095962656768 |