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dc.contributor.authorKaku, K.C.
dc.contributor.authorHegg, D.A.
dc.contributor.authorJonsson, H.
dc.contributor.authorBuzorius, G.
dc.contributor.authorCovert, D.S.
dc.contributor.authorSantarpia, J.L.
dc.contributor.authorCollins, D.R.
dc.date2006
dc.date.accessioned2014-06-11T23:18:37Z
dc.date.available2014-06-11T23:18:37Z
dc.date.issued2006
dc.identifier.citationAtmos. Chem. Phys., 6, 4101-4115, 2006.
dc.identifier.urihttp://hdl.handle.net/10945/42259
dc.description.abstractAerosol samples were collected by aircraft during the summer of 2004 in the Northeastern Pacific and compared to measurements of aerosol hygroscopicity. Chemical speciation analyses of the samples revealed that a significant portion of the marine aerosols was organic, and on average 8% of the total aerosol mass was insoluble organic material, tentatively attributed to natural marine emissions. Two chemical models were explored in an attempt to achieve closure between the marine aerosol chemical and physical properties through reproduction of the observed aerosol growth, both in the subsaturated and supersaturated regimes. Results suggest that at subsaturated relative humidities, the nonideal behavior of water activity with respect to aerosol chemistry has an important effect on aerosol growth. At supersaturations, the underprediction of critical supersaturations by all models suggests the hypothesis that formation of a complete monolayer by the insoluble organics may inhibit the activation of aerosols to form cloud droplets.en_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.titleOrganics in the Northeastern Pacific and their impacts on aerosol hygroscopicity in subsaturated and supersaturated regimesen_US
dc.contributor.departmentCenter for Interdisciplinary Remotely Piloted Aircraft Studies (CIRPAS)


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