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dc.contributor.authorSorooshian, Armin
dc.contributor.authorPrabhakar, Gouri
dc.contributor.authorJonsson, Haflidi
dc.contributor.authorWoods, Roy K.
dc.contributor.authorFlagan, Richard C.
dc.contributor.authorSeinfeld, John H.
dc.date.accessioned2015-08-20T22:19:28Z
dc.date.available2015-08-20T22:19:28Z
dc.date.issued2015
dc.identifier.citationSorooshian, A., G. Prabhakar, H. Jonsson, R. K.Woods, R. C. Flagan, and J. H. Seinfeld (2015), On the presence of giant particles downwind of ships in the marine boundary layer, Geophys. Res. Lett., 42, 2024–2030, doi:10.1002/2015GL063179.en_US
dc.identifier.urihttp://hdl.handle.net/10945/46130
dc.descriptionThe article of record as published may be located at http://dx.doi.org/10.1002/2015GL063179en_US
dc.description.abstractThis study examines large oceangoing ships as a source of giant cloud condensation nuclei (Dp>2 μm) due to wake and stack emissions off the California coast. Observed particle number concentrations behind 10 ships exceeded those in “control” areas, exhibiting number concentration enhancement ratios (ERs) for minimum threshold diameters of ~2, ~10, and ~20 μm as high as 2.7, 5.5, and 7.5, respectively. ER decreases with increasing downwind distance and altitude. ER becomes better correlated with ship size variables (gross tonnage, length, and beam) as theminimumsize threshold increases from2 to 20 μm, whereas ship speed has a less distinct relationship with ER. One case study of a container ship shows that there are higher concentrations of sea-salt tracer species behind it relative to adjacent control areas. These results have implications for cloud properties and precipitation in marine boundary layers exposed to ship traffic.en_US
dc.publisherAGU Publicationsen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleOn the presence of giant particles downwind of ships in the marine boundary layeren_US
dc.typeArticleen_US
dc.contributor.departmentMeteorology
dc.description.funderThis work was funded by ONR grants N00014-11-1-0783, N00014-10-1-0200, N00014-04-1-0118, and N00014-10-1-0811 and NSF grant AGS-1008848.en_US


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