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Ocean Aerobiology.

Alyssa N Alsante1, Daniel C O Thornton1, Sarah D Brooks2

  • 1Department of Oceanography, Texas A&M University, College Station, TX, United States.

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|November 15, 2021
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Summary
This summary is machine-generated.

Ocean aerobiology studies marine life in the atmosphere, revealing its significant role in climate and biogeochemical cycles. Further research is crucial to understand microbial transport, viability, and ecosystem connectivity for improved climate predictions.

Keywords:
aerobiotaair-sea interactionatmospheric dispersalbiogenic aerosolcloud condensation nuclei (CCN)ice nucleating particles (INPs)microbial oceanographysea spray aerosol (SSA)

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Area of Science:

  • Ocean aerobiology
  • Atmospheric microbiology
  • Marine biogeochemistry

Background:

  • Daily exchange of trillions of microorganisms between ocean and atmosphere.
  • Tropospheric transport disperses marine microbes globally within days.
  • Atmospheric transformation of marine organic matter impacts carbon cycling and climate.

Purpose of the Study:

  • Define and explore ocean aerobiology.
  • Quantify marine aerobiota and their transport.
  • Assess microbial viability and growth in the atmosphere.
  • Understand the role of marine biogenic aerosol in Earth systems.

Main Methods:

  • Review of existing literature on ocean aerobiology.
  • Analysis of microbial transport mechanisms.
  • Investigation of organic matter transformation in aerosols.
  • Assessment of aerosol properties (CCN, INP).

Main Results:

  • Marine biogenic aerosol significantly influences climate and biogeochemical processes.
  • Marine organic matter acts as a sink for recalcitrant carbon over long timescales.
  • Sea spray aerosol impacts Earth's radiative budget and cloud properties.
  • Marine organic matter is a significant source of ice nucleating particles.

Conclusions:

  • Ocean aerobiology is a critical, yet poorly constrained, field.
  • Further research is needed to integrate atmospheric-ocean connectivity into Earth System Models.
  • Understanding marine aerobiota is essential for accurate climate and biogeochemical predictions.