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    This study presents a new instrument for measuring oceanic whitecaps, crucial for understanding air-gas transfer and aerosol production. The system uses a fish-eye lens for a 180° view, overcoming previous imaging challenges.

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    Area of Science:

    • Oceanography
    • Atmospheric Science
    • Remote Sensing

    Background:

    • Accurate oceanic whitecap coverage measurements are vital for understanding air-gas transfer and aerosol production.
    • Previous methods faced challenges due to whitecap patchiness, instrument limitations (small field of view, data processing, long-term recording), and deployment difficulties.

    Purpose of the Study:

    • To describe the design of a novel high-resolution optical instrument for imaging oceanic whitecaps.
    • To introduce an automated algorithm for processing the collected whitecap images.
    • To address the challenges in obtaining accurate whitecap coverage data.

    Main Methods:

    • Development of a novel high-resolution optical instrument featuring a fish-eye camera lens.
    • Implementation of an automated algorithm for image processing.
    • Deployment of the instrument during the HiWINGS campaign in the North Atlantic Ocean.

    Main Results:

    • The instrument successfully captured wide-angle (180°) images of oceanic whitecaps.
    • The developed system demonstrated the capability to overcome previous measurement limitations.
    • The instrument was deployed effectively in challenging marine conditions.

    Conclusions:

    • The novel instrument and automated algorithm provide a robust solution for measuring oceanic whitecap coverage.
    • This technology enhances the understanding of air-gas transfer and aerosol production processes.
    • The successful deployment validates the instrument's utility in oceanic research.