On the link between ocean biota emissions, aerosol, and maritime clouds: Airborne, ground, and satellite measurements off the coast of California
| Autor: | Sorooshian, A., Padro, L. T., Nenes, Athanasios, Feingold, G., McComiskey, A., Hersey, S. P., Gates, H., Jonsson, H. H., Miller, S. D., Stephens, G. L., Flagan, R. C., Seinfeld, J. H. |
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| Předmět: |
Chlorophyll
Water uptake Porphyrins Diethylamines aerosol Chlorophyll a Secondary organic aerosols cloud droplet marine atmosphere Cloud droplet number cloud microphysics Oceanography Wind effects complex mixtures California Wind speed Clouds Satellite measurements size distribution Aerosol composition Effective radius cloud condensation nucleus satellite data organic matter Pacific Ocean (East) Atmospheric dynamics Landforms Ocean chlorophyll Pacific Ocean Chlorophyll-a concentration Cloud droplets Cloud condensation nuclei Methanesulfonates Atmospheric aerosols Eastern pacific Ocean wind velocity Hygroscopic growth airborne survey marine ecosystem Organic components carbon emission sense organs Drop formation |
| Popis: | Surface, airborne, and satellite measurements over the eastern Pacific Ocean off the coast of California during the period between 2005 and 2007 are used to explore the relationship between ocean chlorophyll a, aerosol, and marine clouds. Periods of enhanced chlorophyll a and wind speed are coincident with increases in particulate diethylamine and methanesulfonate concentrations. The measurements indicate that amines are a source of secondary organic aerosol in the marine atmosphere. Subsaturated aerosol hygroscopic growth measurements indicate that the organic component during periods of high chlorophyll a and wind speed exhibit considerable water uptake ability. Increased average cloud condensation nucleus (CCN) activity during periods of increased chlorophyll a levels likely results from both size distribution and aerosol composition changes. The available data over the period of measurements indicate that the cloud microphysical response, as represented by either cloud droplet number concentration or cloud droplet effective radius, is likely influenced by a combination of atmospheric dynamics and aerosol perturbations during periods of high chlorophyll a concentrations. Copyright 2009 by the American Geophysical Union. |
| Databáze: | OpenAIRE |
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