The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41
This study summarizes the relationships between various biological and optical properties of a mesoscale coccolithophore bloom observed in the North Atlantic during June 1991. Backscattering and coccolith concentration were positively correlated. Backscattering and concentration of suspended calcite...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.553.1324 2023-05-15T17:30:39+02:00 The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 William M. Balch Katherine A. Kilpatrick Patrick Holligan Derek Harbour Emilio Fernandez The Pennsylvania State University CiteSeerX Archives 1996 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.553.1324 http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.553.1324 http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf text 1996 ftciteseerx 2016-01-08T11:38:59Z This study summarizes the relationships between various biological and optical properties of a mesoscale coccolithophore bloom observed in the North Atlantic during June 1991. Backscattering and coccolith concentration were positively correlated. Backscattering and concentration of suspended calcite were even better correlated because atomic absorption analyses of calcite calcium were equally accurate whether calcite was attached or detached from cells, whereas it was difficult to enumerate the numbers of coccoliths attached to cells by means of microscopy. As the bloom aged, the ratio of detached coccoliths to plated cells increased. Dilution experiments provided the most precise relationships between coccolith backscattering and coccolith abundance. The calcite-specific scattering coefficient was estimated from measurements of beam attenuation, absorption, and calcite concentration. The contribution of coccolith backscattering to total scattering was modeled as a function of coccolith concentration and chlorophyll concentration. Even outside the cocco-lithophore bloom, coccoliths were responsible for 5-30 % of the total backscattering. Anomalous diffraction theory was used to show that calcite-specific scattering is the highest for I-3-pm spheres, which correspond to the diameters of Emiliania huxleyi coccoliths (this prediction was close to the observed values). The calcite-specific scattering coefficients of larger calcite particles (e.g. plated coccolithophore cells, foraminifera Text North Atlantic Unknown |
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ftciteseerx |
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English |
description |
This study summarizes the relationships between various biological and optical properties of a mesoscale coccolithophore bloom observed in the North Atlantic during June 1991. Backscattering and coccolith concentration were positively correlated. Backscattering and concentration of suspended calcite were even better correlated because atomic absorption analyses of calcite calcium were equally accurate whether calcite was attached or detached from cells, whereas it was difficult to enumerate the numbers of coccoliths attached to cells by means of microscopy. As the bloom aged, the ratio of detached coccoliths to plated cells increased. Dilution experiments provided the most precise relationships between coccolith backscattering and coccolith abundance. The calcite-specific scattering coefficient was estimated from measurements of beam attenuation, absorption, and calcite concentration. The contribution of coccolith backscattering to total scattering was modeled as a function of coccolith concentration and chlorophyll concentration. Even outside the cocco-lithophore bloom, coccoliths were responsible for 5-30 % of the total backscattering. Anomalous diffraction theory was used to show that calcite-specific scattering is the highest for I-3-pm spheres, which correspond to the diameters of Emiliania huxleyi coccoliths (this prediction was close to the observed values). The calcite-specific scattering coefficients of larger calcite particles (e.g. plated coccolithophore cells, foraminifera |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
William M. Balch Katherine A. Kilpatrick Patrick Holligan Derek Harbour Emilio Fernandez |
spellingShingle |
William M. Balch Katherine A. Kilpatrick Patrick Holligan Derek Harbour Emilio Fernandez The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
author_facet |
William M. Balch Katherine A. Kilpatrick Patrick Holligan Derek Harbour Emilio Fernandez |
author_sort |
William M. Balch |
title |
The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
title_short |
The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
title_full |
The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
title_fullStr |
The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
title_full_unstemmed |
The 1991 coccolithophore bloom in the central North Atlantic, II. Relating optics to coccolith concentration. Limnology and Oceanography 41 |
title_sort |
1991 coccolithophore bloom in the central north atlantic, ii. relating optics to coccolith concentration. limnology and oceanography 41 |
publishDate |
1996 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.553.1324 http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.553.1324 http://www.aslo.org/lo/toc/vol_41/issue_8/1684.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766127512287444992 |