Merged multi-sensor ocean colour chlorophyll product evaluation for the British Columbia coast

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dc.contributor.authorPramlall, Sejal
dc.contributor.authorJackson, Jennifer M.
dc.contributor.authorKonik, Marta
dc.contributor.authorCosta, Maycira
dc.date.accessioned2023-02-21T19:50:03Z
dc.date.available2023-02-21T19:50:03Z
dc.date.copyright2023en_US
dc.date.issued2023
dc.description.abstractPhytoplankton phenology studies require a dataset that is continuous in time and space since missing data have been shown to affect the accuracy of seasonality metrics. The interpolated GlobColour product provided by the Copernicus Marine Environment Monitoring Service (CMEMS) meets these requirements by being ‘gap filled’, thus yielding the highest spatial coverage. Despite being validated on a global scale, a regional comparison to in situ Chl-a concentrations should be conducted to enable product application in optically complex waters. This study aims to evaluate the performance of the GlobColour interpolated product in British Columbia coastal waters via a statistical match-up analysis and a qualitative analysis to determine whether the data reflect the region’s large-scale seasonal trends and latitudinal dynamics. Additionally, the statistical performance of the GlobColour interpolated product was compared to the original GlobColour and Ocean Colour Climate Change Initiative (OC-CCI) merged chlorophyll-a products based on in situ observations. The GlobColour interpolated product performed relatively well and was comparable to the best-performing product for each water type (RMSE = 0.28, r2 = 0.77, MdAD = 1.5, BIAS = 0.90). The statistics for all the products degraded in Case 2 waters, thus highlighting the dilemma of applying algorithms designed for Case 1 waters in Case 2 waters. Our results indicate how the quality of products can vary in different environmental conditions.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThis research was supported by Costa with funds from Canadian Space Agency (FAST 18FAVICB09), the NSERC NCE MEOPAR—the Marine Environmental Observation, Prediction, and Response Network, and the NSERC Discovery Grant, Canada.en_US
dc.identifier.citationPramlall, S., Jackson, J. M., Konik, M., & Costa, M. (2023). “Merged multi-sensor ocean colour chlorophyll product evaluation for the British Columbia coast.” Remote Sensing, 15(3), 687. https://doi.org/10.3390/rs15030687en_US
dc.identifier.urihttps://doi.org/10.3390/rs15030687
dc.identifier.urihttp://hdl.handle.net/1828/14786
dc.language.isoenen_US
dc.publisherRemote Sensingen_US
dc.subjectGlobColour
dc.subjectOC-CCI
dc.subjectchlorophyll-a
dc.subjectmatch-up
dc.subjectmerged products
dc.subject.departmentDepartment of Geography
dc.titleMerged multi-sensor ocean colour chlorophyll product evaluation for the British Columbia coasten_US
dc.typeArticleen_US

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