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Electrospray Ionization (ESI) Mass Spectrometry

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ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...

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Seawater Sampling and Collection

Seawater Sampling and Collection

Published on: June 17, 2009

The Sea Spray Chemistry and Particle Evolution study (SeaSCAPE): overview and experimental methods.

Jon S Sauer¹, Kathryn J Mayer¹, Christopher Lee²

¹Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA. kprather@ucsd.edu.

Environmental Science. Processes & Impacts

|January 20, 2022

Summary

Marine biological activity significantly impacts sea spray aerosol properties and climate interactions. The SeaSCAPE experiment used a wave channel to study these effects under controlled conditions, revealing insights into aerosol production and aging.

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Seawater Sampling and Collection

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Published on: June 17, 2009

Extraction and Characterization of Surfactants from Atmospheric Aerosols

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An Ultra-clean Multilayer Apparatus for Collecting Size Fractionated Marine Plankton and Suspended Particles

An Ultra-clean Multilayer Apparatus for Collecting Size Fractionated Marine Plankton and Suspended Particles

Published on: April 19, 2018

Area of Science:

Atmospheric Chemistry
Oceanography
Climate Science

Background:

Marine aerosols are crucial climate regulators, influencing solar radiation and cloud formation.
The impact of marine biological activity and seawater chemistry on aerosol properties remains incompletely understood.
Controlled laboratory experiments are needed to isolate marine aerosol processes from terrestrial and anthropogenic influences.

Purpose of the Study:

To investigate the influence of marine biological activity on primary sea spray aerosol and volatile organic compound (VOC) production.
To understand how photooxidative aging transforms marine aerosol composition and properties.
To assess the role of seawater chemistry in marine aerosol formation and evolution.

Main Methods:

Utilized an 11,800 L wave channel adapted for atmospheric measurements, simulating ocean-atmosphere interactions.
Conducted the Sea Spray Chemistry and Particle Evolution (SeaSCAPE) campaign in 2019.
Performed comprehensive measurements of aerosols, gases, and seawater chemistry, including phytoplankton bloom dynamics.

Main Results:

Demonstrated the significant role of phytoplankton blooms in VOC production and subsequent secondary marine aerosol formation.
Observed distinct changes in aerosol production, morphology, and chemical composition due to photochemical aging.
Highlighted the experimental facility's capability to isolate and study marine aerosol processes under controlled conditions.

Conclusions:

Marine biology and seawater chemistry are key drivers of marine aerosol properties relevant to climate.
Photooxidative aging processes significantly alter marine aerosol characteristics.
The SeaSCAPE facility provides a valuable platform for controlled laboratory studies of ocean-atmosphere interactions and marine aerosol science.