Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery
Calanus finmarchicus is a keystone zooplankton species that is commercially harvested and is critical in sustaining many important fisheries in the North Atlantic. However, due to their patchy population distributions, they are notoriously difficult to map using traditional ship-based techniques. Th...
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ftustrathclyde:oai:strathprints.strath.ac.uk:85721 2024-05-19T07:38:34+00:00 Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery McCarry, Cait Basedow, Sünnje L. Davies, Emlyn J. McKee, David 2023-06-08 text https://strathprints.strath.ac.uk/85721/ https://strathprints.strath.ac.uk/85721/2/McCarry_etal_RS2023_Estimating_surface_concentrations_Calanus_finmarchicus_using_standardised_satellite_derived_enhanced_RGB_imagery.pdf https://doi.org/10.3390/rs15122987 en eng https://strathprints.strath.ac.uk/85721/2/McCarry_etal_RS2023_Estimating_surface_concentrations_Calanus_finmarchicus_using_standardised_satellite_derived_enhanced_RGB_imagery.pdf McCarry, Cait <https://strathprints.strath.ac.uk/view/author/1606169.html> and Basedow, Sünnje L. and Davies, Emlyn J. and McKee, David <https://strathprints.strath.ac.uk/view/author/106862.html> (2023 <https://strathprints.strath.ac.uk/view/year/2023.html>) Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery. Remote Sensing <https://strathprints.strath.ac.uk/view/publications/Remote_Sensing.html>, 15 (12). 2987. ISSN 2072-4292 cc_by Physics Mathematics Aquaculture. Fisheries. Angling Article PeerReviewed 2023 ftustrathclyde https://doi.org/10.3390/rs15122987 2024-05-01T00:24:32Z Calanus finmarchicus is a keystone zooplankton species that is commercially harvested and is critical in sustaining many important fisheries in the North Atlantic. However, due to their patchy population distributions, they are notoriously difficult to map using traditional ship-based techniques. This study involves the use of a combined approach of standardized ocean colour imagery and radiative transfer modelling to identify reflectance anomalies potentially caused by surface swarms of C. finmarchicus in the northern Norwegian Sea. Here, we have standardized satellite eRGB imagery that depicts a distinct ‘red’ patch, which coincides with in situ measurements of high surface concentrations of C. finmarchicus. Anomaly mapping using a novel colour matching technique shows a high degree of anomaly within this patch compared to the surrounding waters, indicating the presence of something other than the standard bio-optical model constituents influencing the optics of the water column. Optical closure between modelled and satellite-derived reflectance signals is achieved (and the anomaly is significantly reduced) through the addition of C. finmarchicus absorption into the model. Estimations of the surface concentrations of C. finmarchicus suggest between 80,000 and 150,000 individuals m−3 within the extent of the identified red patch. Furthermore, analysis of the impact of C. finmarchicus absorption on the OC3M algorithm performance points to the potential for the algorithm to over-estimate chlorophyll concentrations if C. finmarchicus populations are present in the surface waters. Article in Journal/Newspaper Calanus finmarchicus North Atlantic Norwegian Sea University of Strathclyde Glasgow: Strathprints Remote Sensing 15 12 2987 |
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Open Polar |
collection |
University of Strathclyde Glasgow: Strathprints |
op_collection_id |
ftustrathclyde |
language |
English |
topic |
Physics Mathematics Aquaculture. Fisheries. Angling |
spellingShingle |
Physics Mathematics Aquaculture. Fisheries. Angling McCarry, Cait Basedow, Sünnje L. Davies, Emlyn J. McKee, David Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
topic_facet |
Physics Mathematics Aquaculture. Fisheries. Angling |
description |
Calanus finmarchicus is a keystone zooplankton species that is commercially harvested and is critical in sustaining many important fisheries in the North Atlantic. However, due to their patchy population distributions, they are notoriously difficult to map using traditional ship-based techniques. This study involves the use of a combined approach of standardized ocean colour imagery and radiative transfer modelling to identify reflectance anomalies potentially caused by surface swarms of C. finmarchicus in the northern Norwegian Sea. Here, we have standardized satellite eRGB imagery that depicts a distinct ‘red’ patch, which coincides with in situ measurements of high surface concentrations of C. finmarchicus. Anomaly mapping using a novel colour matching technique shows a high degree of anomaly within this patch compared to the surrounding waters, indicating the presence of something other than the standard bio-optical model constituents influencing the optics of the water column. Optical closure between modelled and satellite-derived reflectance signals is achieved (and the anomaly is significantly reduced) through the addition of C. finmarchicus absorption into the model. Estimations of the surface concentrations of C. finmarchicus suggest between 80,000 and 150,000 individuals m−3 within the extent of the identified red patch. Furthermore, analysis of the impact of C. finmarchicus absorption on the OC3M algorithm performance points to the potential for the algorithm to over-estimate chlorophyll concentrations if C. finmarchicus populations are present in the surface waters. |
format |
Article in Journal/Newspaper |
author |
McCarry, Cait Basedow, Sünnje L. Davies, Emlyn J. McKee, David |
author_facet |
McCarry, Cait Basedow, Sünnje L. Davies, Emlyn J. McKee, David |
author_sort |
McCarry, Cait |
title |
Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
title_short |
Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
title_full |
Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
title_fullStr |
Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
title_full_unstemmed |
Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery |
title_sort |
estimating surface concentrations of calanus finmarchicus using standardised satellite-derived enhanced rgb imagery |
publishDate |
2023 |
url |
https://strathprints.strath.ac.uk/85721/ https://strathprints.strath.ac.uk/85721/2/McCarry_etal_RS2023_Estimating_surface_concentrations_Calanus_finmarchicus_using_standardised_satellite_derived_enhanced_RGB_imagery.pdf https://doi.org/10.3390/rs15122987 |
genre |
Calanus finmarchicus North Atlantic Norwegian Sea |
genre_facet |
Calanus finmarchicus North Atlantic Norwegian Sea |
op_relation |
https://strathprints.strath.ac.uk/85721/2/McCarry_etal_RS2023_Estimating_surface_concentrations_Calanus_finmarchicus_using_standardised_satellite_derived_enhanced_RGB_imagery.pdf McCarry, Cait <https://strathprints.strath.ac.uk/view/author/1606169.html> and Basedow, Sünnje L. and Davies, Emlyn J. and McKee, David <https://strathprints.strath.ac.uk/view/author/106862.html> (2023 <https://strathprints.strath.ac.uk/view/year/2023.html>) Estimating surface concentrations of Calanus finmarchicus using standardised satellite-derived enhanced RGB imagery. Remote Sensing <https://strathprints.strath.ac.uk/view/publications/Remote_Sensing.html>, 15 (12). 2987. ISSN 2072-4292 |
op_rights |
cc_by |
op_doi |
https://doi.org/10.3390/rs15122987 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
12 |
container_start_page |
2987 |
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1799478022178340864 |