Type

Text

Type

Thesis

Advisor

Advisors: Aller, Josephine Y.; Knopf, Daniel A.; Lee, Cindy

Date

2017-12-01

Keywords

MOUDI, Marine biology, Atmospheric chemistry, Sea-spray Aerosol, Sea-surface microlayer

Department

Department of Marine and Atmospheric Science | Thesis

Language

en

Source

This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.

Identifier

http://hdl.handle.net/11401/78294

Publisher

The Graduate School, Stony Brook University: Stony Brook, NY.

Format

application/pdf

Abstract

Recent studies have shown that sea-spray aerosol (SSA) particles are largely composed of inorganic salts and organic matter (OM). It has been suggested that phytoplankton and bacteria and the organic compounds released from cells are a possible origin for this airborne OM. Transparent exopolymer (TEP) and Coomassie stainable particle (CSP) concentrations in the ocean surface increase during phytoplankton bloom conditions. The sea-surface microlayer (SML), the interface for all air-sea interactions can become enriched in these materials and SSA formation. A new system, the Breaker Emulating Aerosol Chamber (BEACH) was developed to study the production of SSAs in a self-contained, controlled environment. Biological and chemical changes in SML and subsurface seawater, as well as chemical changes in waterfall-generated, size-fractionated SSA particles, were monitored for 30 days during a Thalassiosira weissflogii bloom. Enrichment of TEP, DOC and CSP in the SML resulted in increase in the overall concentration of organic carbon, TEP and CSP in the total particle load. An increase of the concentration of these materials in the subsurface water also resulted in an increase in the organic fraction in the SSA particles. Trends in the concentrations of TEP measured in the SML and subsurface waters did not correspond well to those seen in size-fractionated SSA particles. This research was intended to further investigate the connection between primary production in the ocean and the physicochemical properties of SSA; the BEACH system will aid in this investigation. | 87 pages

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