What question did this study set out to answer?

Quantify submesoscale-driven vertical fluxes of particulate organic carbon and heat at an ocean upwelling front using combined airborne and satellite remote sensing.

August 1, 2026Journal of Geophysical Research OceansOpen Access

Estimating Submesoscale‐Driven Particulate Organic Carbon Flux From Remote Sensing at a Dynamic Upwelling Front

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Authors

SLSarah E. Lang MOMelissa Omand MFMara Freilich

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Overview

Observational study reveals significant downward particulate organic carbon flux driven by submesoscale frontal dynamics, highlighting key mechanisms of ocean carbon export.

Key Points

Quantify submesoscale-driven vertical fluxes of particulate organic carbon and heat at an ocean upwelling front using combined airborne and satellite remote sensing.
Paired airborne Doppler radar measurements of ocean surface velocity (NASA DopplerScatt) with satellite ocean color particulate organic carbon estimates (Sentinel-3 OLCI).
Integrated spatial velocity and carbon distributions across a persistent upwelling front in the central California Current System alongside high-resolution in situ hydrographic and bio-optical ship profiles.
Instantaneous advective vertical fluxes reached magnitudes of up to ±1,000 mg C m⁻² d⁻¹ for particulate organic carbon and ±1,000 W m⁻² for heat at the front.
Net integrated submesoscale fluxes drove substantial net downward particulate organic carbon export (approx. -100 mg C m⁻² d⁻¹) and net upward heat transport (approx. 100 W m⁻²).
Frontal overturning and filament subduction were identified as primary kinematic mechanisms driving particulate organic carbon transport beneath the mixed layer.

Cite This Study

Lang et al. (2026) studied this question.

synapsesocial.com/papers/6a96db18d45ba51c86b2ec91 https://doi.org/10.1029/2025jc023752

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August 1, 2026Journal of Geophysical Research OceansOpen Access

Estimating Submesoscale‐Driven Particulate Organic Carbon Flux From Remote Sensing at a Dynamic Upwelling Front

View Full Paper

Ask AI

Bookmark

Authors

SLSarah E. Lang MOMelissa Omand MFMara Freilich

Discussion

Member takes

Overview

Observational study reveals significant downward particulate organic carbon flux driven by submesoscale frontal dynamics, highlighting key mechanisms of ocean carbon export.

Key Points

Quantify submesoscale-driven vertical fluxes of particulate organic carbon and heat at an ocean upwelling front using combined airborne and satellite remote sensing.
Paired airborne Doppler radar measurements of ocean surface velocity (NASA DopplerScatt) with satellite ocean color particulate organic carbon estimates (Sentinel-3 OLCI).
Integrated spatial velocity and carbon distributions across a persistent upwelling front in the central California Current System alongside high-resolution in situ hydrographic and bio-optical ship profiles.
Instantaneous advective vertical fluxes reached magnitudes of up to ±1,000 mg C m⁻² d⁻¹ for particulate organic carbon and ±1,000 W m⁻² for heat at the front.
Net integrated submesoscale fluxes drove substantial net downward particulate organic carbon export (approx. -100 mg C m⁻² d⁻¹) and net upward heat transport (approx. 100 W m⁻²).
Frontal overturning and filament subduction were identified as primary kinematic mechanisms driving particulate organic carbon transport beneath the mixed layer.

Cite This Study

Lang et al. (2026) studied this question.

synapsesocial.com/papers/6a96db18d45ba51c86b2ec91 https://doi.org/10.1029/2025jc023752

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