Sorooshian, Armin and Padró, Luz T. and Nenes, Athanasios and Feingold, Graham and McComiskey, Allison and Hersey, Scott P. and Gates, Harmony and Jonsson, Haflidi H. and Miller, Steven D. and Stephens, Graeme L. and Flagan, Richard C. and Seinfeld, John H. (2009) On the link between ocean biota emissions, aerosol, and maritime clouds: Airborne, ground, and satellite measurements off the coast of California. Global Biogeochemical Cycles, 23 . GB4007. ISSN 0886-6236 http://resolver.caltech.edu/CaltechAUTHORS:20091104-103810438
- Published Version
Restricted to Caltech community only
See Usage Policy.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20091104-103810438
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.
|Additional Information:||© 2009 American Geophysical Union. Received 14 January 2009; accepted 24 June 2009; published 14 October 2009. This work was supported by the Office of Naval Research grant N00014-04-1-0118 and the Atmospheric Radiation Measurement Program of the U.S. Department of Energy under grant DE-AI02-06ER64215. A.S. acknowledges support from the Cooperative Institute for Research in the Atmosphere Postdoctoral Research Program and Colorado State University. G.F. and A.M. acknowledge support from NOAA’s Climate Goal. The images and data used in this study were acquired using the GES-DISC Interactive Online Visualization and Analysis Infrastructure (Giovanni) as part of the NASA’s Goddard Earth Sciences (GES) Data and Information Services Center (DISC). The authors gratefully acknowledge the NOAA Air Resources Laboratory (ARL) for provision of the HYSPLIT transport and dispersion model.|
|Subject Keywords:||secondary organic aerosol; ocean-aerosol-cloud interactions; amines|
|Official Citation:||Sorooshian, A., et al. (2009), On the link between ocean biota emissions, aerosol, and maritime clouds: Airborne, ground, and satellite measurements off the coast of California, Global Biogeochem. Cycles, 23, GB4007, doi:10.1029/2009GB003464.|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||04 Nov 2009 23:14|
|Last Modified:||26 Dec 2012 11:31|
Repository Staff Only: item control page