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July 23, 2026Proceedings of the National Academy of Sciences

Observed rapid adjustment of the atmospheric boundary layer to submesoscale sea surface temperature fronts

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Authors

IUIgor UchoaNOAA Oceanic and Atmospheric ResearchJWJacob WenegratUniversity of Maryland, College ParkAKAlex KinsellaWoods Hole Oceanographic Institution

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Overview

Observations reveal air-sea fluxes influence boundary layer dynamics in response to ocean temperature anomalies.

Key Points

  • This research investigates the effects of submesoscale ocean temperature variability on the atmospheric boundary layer's structure and dynamics.
  • Utilized submesoscale-resolving ship and airborne measurements to capture in situ data.
  • Analyzed linear regression coefficients between wind speed and sea surface temperature anomalies.
  • Conducted lagged correlation and scaling analysis to understand momentum mixing in the atmosphere.
  • Observed wind speed response of 0.23 m s −1 °C −1 related to sea surface temperature anomalies.
  • Identified coherent circulations with vertical velocities of about 1 cm s −1 over lower 200 m.
  • Confirmed the rapid adjustment of the marine boundary layer influenced by submesoscale air-sea fluxes.

Cite This Study

Uchoa et al. (2026) studied this question.

synapsesocial.com/papers/6a61af8bfaa9903c5116a5a7https://doi.org/10.1073/pnas.2605662123
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