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首页> 外文期刊>Oceanographic Literature Review >Atmosphere-Ocean Feedback From Wind-Driven Sea Spray Aerosol Production
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Atmosphere-Ocean Feedback From Wind-Driven Sea Spray Aerosol Production

机译：风力驱动海浪喷雾气溶胶生产的大气 - 海洋反馈

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摘要

Marine aerosol production is influenced by wind speed, particularly over the Southern Ocean which is the windiest region on Earth year-round. Using climate model simulations with artificially enhanced sea spray aerosol (SSA), we show that Southern Ocean wind speeds are sensitive to SSA via surface cooling resulting from enhanced aerosol concentrations. The near-surface westerly jet weakens, therefore reducing SSA production. Comparing coupled and atmosphere-only simulations indicates that SSA partially regulates its own production via a feedback between the atmosphere and ocean. The decrease in radiative forcing in the coupled model is approximately one-quarter of that simulated by the atmosphere-only model, and the extent of the feedback also depends on the SSA source function used. Our results highlight the importance of understanding SSA emissions and their parameterization in climate models. Including a temperature dependence in SSA parameterizations can play a large role in the climate feedback, but further investigation is needed.
机译：海洋气溶胶产量受风速的影响，特别是在南海上，全年是地球上最大的地区。使用气候模型模拟与人工增强的海浪喷雾气溶胶（SSA），我们表明，南洋风速通过增强的气溶胶浓度导致的表面冷却敏感SSA。近表面西部喷气机削弱，因此降低了SSA生产。比较耦合和唯一的大气模拟表明SSA通过大气和海洋之间的反馈部分地调节自己的生产。耦合模型中的辐射强制的减少约为由大气模型模拟的四分之一，并且反馈的程度也取决于所使用的SSA源函数。我们的结果突出了了解SSA排放及其参数化在气候模型中的重要性。包括SSA参数化的温度依赖性可以在气候反馈中发挥大作用，但需要进一步调查。

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  • 来源
    《Oceanographic Literature Review》 |2021年第6期|1209-1209|共1页
  • 作者

    L.E. Revell; N.E. Wotherspoon; O.J. Jones;

  • 作者单位

    School of Physical and Chemical Sciences University of Canterbury Christchurch New Zealand;

    School of Physical and Chemical Sciences University of Canterbury Christchurch New Zealand;

    School of Physical and Chemical Sciences University of Canterbury Christchurch New Zealand;

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