Articles | Volume 19, issue 9
Biogeosciences, 19, 2365–2395, 2022
https://doi.org/10.5194/bg-19-2365-2022
Biogeosciences, 19, 2365–2395, 2022
https://doi.org/10.5194/bg-19-2365-2022
Research article
05 May 2022
Research article | 05 May 2022

Major processes of the dissolved cobalt cycle in the North and equatorial Pacific Ocean

Rebecca Chmiel et al.

Data sets

Dissolved Cobalt and Labile Cobalt from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 Mak A. Saito https://doi.org/10.26008/1912/bco-dmo.818383.2

Dissolved Cobalt and Labile Cobalt from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 Mak A. Saito https://doi.org/10.26008/1912/bco-dmo.818610.1

Bottle file from Leg 1 K. L. Casciotti, G. A. Cutter, and P. J. Lam https://doi.org/10.26008/1912/bco-dmo.777951.6

Bottle file from Leg 2 K. L. Casciotti, G. A. Cutter, and P. J. Lam https://doi.org/10.26008/1912/bco-dmo.824867.5

Model code and software

"GP15'' R. Chmiel https://github.com/rebecca-chmiel/GP15

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Short summary
Dissolved cobalt is present in trace amounts in seawater and is a necessary nutrient for marine microbes. On a transect from the Alaskan coast to Tahiti, we measured seawater concentrations of dissolved cobalt. Here, we describe several interesting features of the Pacific cobalt cycle including cobalt sources along the Alaskan coast and Hawaiian vents, deep-ocean particle formation, cobalt activity in low-oxygen regions, and how our samples compare to a global biogeochemical model’s predictions.
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