Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean
Conventional digital cameras, the Nikon Coolpix885 (R) and the SeaLife ECOshot (R), were used as in situ optical instruments for water quality monitoring. Measured response spectra showed that these digital cameras are basically three-band radiometers. The response values in the red, green and blue...
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Online Access: | http://hdl.handle.net/10379/11682 https://doi.org/10.3390/s90705825 |
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ftnuigalway:oai:aran.library.nuigalway.ie/:10379/11682 2023-06-11T04:14:43+02:00 Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean Goddijn-Murphy, Lonneke Dailloux, Damien White, Martin Bowers, Dave 2009-07-22 http://hdl.handle.net/10379/11682 https://doi.org/10.3390/s90705825 unknown MDPI AG Sensors Goddijn-Murphy, Lonneke; Dailloux, Damien; White, Martin; Bowers, Dave (2009). Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean. Sensors 9 (7), 5825-5843 1424-8220 http://hdl.handle.net/10379/11682 doi:10.3390/s90705825 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ digital camera ocean colour marine technology advancement irish sea river plume optical-properties color chlorophyll reflectance algorithms vegetation pigment system Article 2009 ftnuigalway https://doi.org/10.3390/s90705825 2023-05-28T18:05:22Z Conventional digital cameras, the Nikon Coolpix885 (R) and the SeaLife ECOshot (R), were used as in situ optical instruments for water quality monitoring. Measured response spectra showed that these digital cameras are basically three-band radiometers. The response values in the red, green and blue bands, quantified by RGB values of digital images of the water surface, were comparable to measurements of irradiance levels at red, green and cyan/blue wavelengths of water leaving light. Different systems were deployed to capture upwelling light from below the surface, while eliminating direct surface reflection. Relationships between RGB ratios of water surface images, and water quality parameters were found to be consistent with previous measurements using more traditional narrow-band radiometers. This current paper focuses on the method that was used to acquire digital images, derive RGB values and relate measurements to water quality parameters. Field measurements were obtained in Galway Bay, Ireland, and in the Southern Rockall Trough in the North Atlantic, where both yellow substance and chlorophyll concentrations were successfully assessed using the digital camera method. Article in Journal/Newspaper North Atlantic National University of Ireland (NUI), Galway: ARAN Rockall Trough ENVELOPE(-15.036,-15.036,53.825,53.825) Sensors 9 7 5825 5843 |
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Open Polar |
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National University of Ireland (NUI), Galway: ARAN |
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ftnuigalway |
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unknown |
topic |
digital camera ocean colour marine technology advancement irish sea river plume optical-properties color chlorophyll reflectance algorithms vegetation pigment system |
spellingShingle |
digital camera ocean colour marine technology advancement irish sea river plume optical-properties color chlorophyll reflectance algorithms vegetation pigment system Goddijn-Murphy, Lonneke Dailloux, Damien White, Martin Bowers, Dave Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
topic_facet |
digital camera ocean colour marine technology advancement irish sea river plume optical-properties color chlorophyll reflectance algorithms vegetation pigment system |
description |
Conventional digital cameras, the Nikon Coolpix885 (R) and the SeaLife ECOshot (R), were used as in situ optical instruments for water quality monitoring. Measured response spectra showed that these digital cameras are basically three-band radiometers. The response values in the red, green and blue bands, quantified by RGB values of digital images of the water surface, were comparable to measurements of irradiance levels at red, green and cyan/blue wavelengths of water leaving light. Different systems were deployed to capture upwelling light from below the surface, while eliminating direct surface reflection. Relationships between RGB ratios of water surface images, and water quality parameters were found to be consistent with previous measurements using more traditional narrow-band radiometers. This current paper focuses on the method that was used to acquire digital images, derive RGB values and relate measurements to water quality parameters. Field measurements were obtained in Galway Bay, Ireland, and in the Southern Rockall Trough in the North Atlantic, where both yellow substance and chlorophyll concentrations were successfully assessed using the digital camera method. |
format |
Article in Journal/Newspaper |
author |
Goddijn-Murphy, Lonneke Dailloux, Damien White, Martin Bowers, Dave |
author_facet |
Goddijn-Murphy, Lonneke Dailloux, Damien White, Martin Bowers, Dave |
author_sort |
Goddijn-Murphy, Lonneke |
title |
Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
title_short |
Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
title_full |
Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
title_fullStr |
Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
title_full_unstemmed |
Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
title_sort |
fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean |
publisher |
MDPI AG |
publishDate |
2009 |
url |
http://hdl.handle.net/10379/11682 https://doi.org/10.3390/s90705825 |
long_lat |
ENVELOPE(-15.036,-15.036,53.825,53.825) |
geographic |
Rockall Trough |
geographic_facet |
Rockall Trough |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Sensors Goddijn-Murphy, Lonneke; Dailloux, Damien; White, Martin; Bowers, Dave (2009). Fundamentals of in situ digital camera methodology for water quality monitoring of coast and ocean. Sensors 9 (7), 5825-5843 1424-8220 http://hdl.handle.net/10379/11682 doi:10.3390/s90705825 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.3390/s90705825 |
container_title |
Sensors |
container_volume |
9 |
container_issue |
7 |
container_start_page |
5825 |
op_container_end_page |
5843 |
_version_ |
1768370970380206080 |