Carbon export and fate beneath a dynamic upwelled filament off the California coast

Bourne, Hannah L.; Bishop, James K. B.; Connors, Elizabeth J.; Wood, Todd J.

doi:https://doi.org/10.5194/bg-18-3053-2021

Articles | Volume 18, issue 10

https://doi.org/10.5194/bg-18-3053-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Biogeochemistry in the BGC-Argo era: from process studies...

https://doi.org/10.5194/bg-18-3053-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 10

Research article

|

20 May 2021

Research article |

| 20 May 2021

Carbon export and fate beneath a dynamic upwelled filament off the California coast

Hannah L. Bourne, James K. B. Bishop, Elizabeth J. Connors, and Todd J. Wood

Supplement

https://doi.org/10.5194/bg-18-3053-2021-supplement

Data sets

Original transmitted-light imagery and processed attenuance images of sinking particles observed by autonomous Carbon Flux Explorers deployed 100-500m in the California Current Regime, during the CCE-LTER process study (P1706) between June 2 and July 1, 2017 in the California Current Regime James K. B. Bishop https://doi.org/10.26008/1912/bco-dmo.825076.1

Size fractionated Particulate Carbon Flux 100–500m measured by autonomous Carbon Flux Explorers deployed during the CCE-LTER process study (P1706) between June 2 and July 1, 2017 in the California Current Regime James K. B. Bishop https://doi.org/10.26008/1912/bco-dmo.823408.1

CTD profile data from Carbon Flux Explorers deployed 100-500m in the California Current Regime, during the CCE-LTER process study (P1706) between June 2 and July 1, 2017 James K.B. Bishop https://doi.org/10.26008/1912/bco-dmo.825602.1

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Short summary

To learn how the biological carbon pump works in productive coastal upwelling systems, four autonomous carbon flux explorers measured carbon flux through the twilight zone beneath an offshore-flowing filament of biologically productive water. Strikingly different particle classes dominated the carbon fluxes during successive stages of the filament evolution over 30 d. Both flux and transfer efficiency were far greater than expected, suggesting an outsized filament impact in California waters.