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

Victoria S. Hemsley, Timothy Smyth, Adrian Martin, Eleanor Frajka-Williams, Andrew Thompson, Gillian Damerell, Stuart C. Painter

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Abstract

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.
Original languageEnglish
Pages (from-to)11612–11621
Number of pages10
JournalEnvironmental Science and Technology
Volume49
Issue number19
Early online date24 Aug 2015
DOIs
Publication statusPublished - 2015

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