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Sea Surface Controls Over Air Quality and Climate Forcers in the Marine Boundary Layer

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Monday, 09 April 2018, 9:30

Monday, April 9, 2018.  9:30 am. Sea Surface Controls Over Air Quality and Climate Forcers in the Marine Boundary Layer.  Michelle Kim, California Institute of Technology.  Sponsored by Department of Environmental Sciences. Candidate for Atmospheric Chemistry position. Refreshments at 9:15 am. 

ABSTRACT:

Spanning about 70% of the Earth's surface, the ocean is a vast potential source and sink for reactive molecules to the atmosphere. Atmospheric oxidation of both natural and anthropogenic emissions is controlled by non-linear, free radical chemistry and drives the production of toxic pollutants and climate forcing agents, such as ozone and particulate matter. Due to a paucity of measurements, air-sea exchange rates and their estimated impacts on atmospheric chemistry span several orders of magnitude. Direct observations of reactive trace gas air-sea exchange demonstrate far-reaching implications, ranging from the remote North Atlantic and equatorial Pacific, as well as coastal urban airsheds that impact most of the global population. Novel, real time techniques were developed and deployed to remote and coastal areas to provide direct constraints on the impact of air-sea exchange on global climate forcing agents and regional pollution. 

Location  Room 205, Institute for Food, Nutrition and Health, Room, 61 Dudley Road, Cook Campus