Estimating oceanic primary production using vertical irradiance and chlorophyll profiles from ocean gliders in the North Atlantic

An autonomous underwater vehicle (Seaglider) has been used to estimate marine primary production (PP) using a combination of irradiance and fluorescence vertical profiles. This method provides estimates for depth-resolved and temporally evolving PP on fine spatial scales in the absence of ship-based...

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Bibliographic Details
Published in:Environmental Science & Technology
Main Authors: Hemsley, Victoria S., Smyth, Timothy, Martin, Adrian, Frajka-Williams, Eleanor, Thompson, Andrew, Damerell, Gillian, Painter, Stuart C.
Format: Article in Journal/Newspaper
Language:English
Published: 2015
Subjects:
North Atlantic
Online Access:https://ueaeprints.uea.ac.uk/id/eprint/57384/
https://ueaeprints.uea.ac.uk/id/eprint/57384/1/hemsley_paper_final_revision_changed.docx
https://ueaeprints.uea.ac.uk/id/eprint/57384/2/Hemsley_et_al.pdf
https://doi.org/10.1021/acs.est.5b00608
Description
Summary:An autonomous underwater vehicle (Seaglider) has been used to estimate marine primary production (PP) using a combination of irradiance and fluorescence vertical profiles. This method provides estimates for depth-resolved and temporally evolving PP on fine spatial scales in the absence of ship-based calibrations. We describe techniques to correct for known issues associated with long autonomous deployments such as sensor calibration drift and fluorescence quenching. Comparisons were made between the Seaglider, stable isotope (13C), and satellite estimates of PP. The Seaglider-based PP estimates were comparable to both satellite estimates and stable isotope measurements.

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