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Quantify atmospheric sea-salt aerosol concentrations and interface fluxes to characterize the global marine sea-salt budget.

February 1, 1997Journal of Geophysical Research AtmospheresOpen Access

Modeling sea‐salt aerosols in the atmosphere: 2. Atmospheric concentrations and fluxes

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Quantify atmospheric sea-salt aerosol concentrations and interface fluxes to characterize the global marine sea-salt budget.
Simulated atmospheric sodium ion (Na+) concentrations and fluxes using a global transport model.
Validated simulated concentrations against long-term observational records from seven worldwide monitoring stations across both hemispheres.
Estimated global ocean emissions of sea-salt aerosols at approximately 1.17 × 10^16 g yr^-1, showing marked seasonal variation with peaks in boreal and austral winters.
Determined that dry deposition drives 60–70% of sea-salt removal, while below-cloud and in-cloud precipitation scavenging account for 28–39% and ~1%, respectively.
Observed that ~99% of generated aerosol mass falls back into the ocean locally, with only 1–2% exported beyond 300 × 300 km grids and ~4% of exported mass composed of long-range transportable submicron particles.

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Implication

Global modeling study reveals seasonal sea-salt aerosol fluxes across marine atmospheres, suggesting most emissions rapidly redeposit locally rather than undergoing long-range transport.

Cite This Study

Gong et al. (1997) studied this question.

synapsesocial.com/papers/6a7c4e527627ead3dcdf90b0 https://doi.org/10.1029/96jd03401

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Implication

Global modeling study reveals seasonal sea-salt aerosol fluxes across marine atmospheres, suggesting most emissions rapidly redeposit locally rather than undergoing long-range transport.

Modeling sea‐salt aerosols in the atmosphere: 2. Atmospheric concentrations and fluxes

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Discussion

Implication

Cite This Study

Modeling sea‐salt aerosols in the atmosphere: 2. Atmospheric concentrations and fluxes

Key Points

Discussion

Implication

Cite This Study

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