Export of Dissolved Organic Carbon (DOC) compared to the particulate and active fluxes near South Georgia, Southern Ocean

Lovecchio, Elisa; Clément, Louis; Evans, Claire; Rayne, Rachel; Dumousseaud, Cynthia; Roshan, Saeed; Giering, Sarah L.C.; Martin, Adrian

doi:10.1016/j.dsr2.2023.105338

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Book1

Article1

Preprint1

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Dynamics of dissolved organic carbon in the global ocean

Hansell,

Romera-Castillo,

Lopez

2024

Biogeochemistry of Marine Dissolved Organic Matter

View full text Add to dashboard Cite

Dynamics of dissolved organic carbon in the global ocean

Hansell,

Romera-Castillo,

Lopez

2024

Biogeochemistry of Marine Dissolved Organic Matter

View full text Add to dashboard Cite

Active and passive organic carbon fluxes during a bloom in the Southern Ocean (South Georgia)

Major,

Giering,

Ainsworth

et al. 2024

Sci Data

View full text Add to dashboard Cite

The Controls Over Mesopelagic Interior Carbon Storage (COMICS) cruise DY086 took place aboard the RRS Discovery in the South Atlantic during November and December, 2017. Physical, chemical, biogeochemical and biological data were collected during three visits to ocean observatory station P3, off the coast of South Georgia, during an austral spring bloom. A diverse range of equipment including CTD-rosette, Acoustic Doppler Current Profiler (ADCP), net deployments, marine snow catchers (MSCs), Stand Alone Pump System (SAPS) and PELAGRA Sediment Traps were used to produce a comprehensive, high-quality dataset. The data can provide excellent insight into regional biological carbon pump (BCP) processes; it is recommended for use by observational scientists and modellers to enhance understanding of ecosystem interactions relating to mesopelagic carbon storage.

show abstract

The oceanic physical injection pump of particulate organic carbon

Bellacicco,

Marullo,

dall'Olmo

et al. 2024

Preprint

View full text Add to dashboard Cite

The contribution of the ocean biological carbon pump to the export of organic carbon at depth has predominantly been assessed by considering sinking particulate matter and vertically migrating organisms. Despite growing recognition of the importance of dynamical pathways that export carbon through upper ocean mixing and advection, observation-based estimates of their global impact are still lacking. In this study, we leverage a 4D data-driven time series (1997-2018) of particulate organic carbon concentration (POC) and ocean circulation to quantify the physical injection pump. We dissect the roles of entrainment and horizontal/vertical advection across mesoscale to large scales. Our findings indicate that, on average, the physical injection pump exports 0.086±0.030 Pg POC yr⁻¹. This value diminishes to less than one-third when using climatological POC values instead of weekly estimates, highlighting the critical coupling between the POC annual cycle and upper layer dynamics in determining net export. Observed interannual variations are linked to a linear combination of the El Niño–Southern Oscillation and Southern Annular Mode, suggesting a dynamic connection to intermediate/mode water-mass formation in the Southern Ocean.

show abstract

Export of Dissolved Organic Carbon (DOC) compared to the particulate and active fluxes near South Georgia, Southern Ocean

Cited by 3 publications

References 59 publications

Dynamics of dissolved organic carbon in the global ocean

Dynamics of dissolved organic carbon in the global ocean

Active and passive organic carbon fluxes during a bloom in the Southern Ocean (South Georgia)

The oceanic physical injection pump of particulate organic carbon

Contact Info

Product

Resources

About