dc.contributor.author | Ovadnevaite, Jurgita | |
dc.contributor.author | Ceburnis, Darius | |
dc.contributor.author | Martucci, Giovanni | |
dc.contributor.author | Bialek, Jakub | |
dc.contributor.author | Monahan, Ciaran | |
dc.contributor.author | Rinaldi, Matteo | |
dc.contributor.author | Facchini, Maria Cristina | |
dc.contributor.author | Berresheim, Harald | |
dc.contributor.author | Worsnop, Douglas R. | |
dc.contributor.author | O'Dowd, Colin | |
dc.date.accessioned | 2018-09-20T16:20:54Z | |
dc.date.available | 2018-09-20T16:20:54Z | |
dc.date.issued | 2011-11-01 | |
dc.identifier.citation | Ovadnevaite, Jurgita; Ceburnis, Darius; Martucci, Giovanni; Bialek, Jakub; Monahan, Ciaran; Rinaldi, Matteo; Facchini, Maria Cristina; Berresheim, Harald; Worsnop, Douglas R. O'Dowd, Colin (2011). Primary marine organic aerosol: a dichotomy of low hygroscopicity and high ccn activity. Geophysical Research Letters 38 , | |
dc.identifier.issn | 0094-8276 | |
dc.identifier.uri | http://hdl.handle.net/10379/13374 | |
dc.description.abstract | High-time resolution measurements of primary marine organic sea-spray physico-chemical properties reveal an apparent dichotomous behavior in terms of water uptake: specifically sea-spray aerosol enriched in organic matter possesses a low hydroscopic Growth Factor (GF similar to 1.25) while simultaneously having a cloud condensation nucleus/condensation nuclei (CCN/CN) activation efficiency of between 83% at 0.25% supersaturation and 100% at 0.75%. In contrast, the activation efficiency of particles dominated by non-sea-salt (nss)-sulfate ranged between 48-100% over supersaturation range of 0.25%-1%. Simultaneous retrieval of Cloud Droplet Number Concentration (CDNC) during primary organic aerosol plumes reveals CDNC concentrations of 350 cm(-3) for organic mass concentrations 3-4 mu g m(-3). It is demonstrated that the retrieved high CDNCs under clean marine conditions can only be explained by organic sea-spray and corroborates the high CCN activation efficiency associated with primary organics. It is postulated that marine hydrogels are responsible for this dichotomous behavior. Citation: Ovadnevaite, J., D. Ceburnis, G. Martucci, J. Bialek, C. Monahan, M. Rinaldi, M. C. Facchini, H. Berresheim, D. R. Worsnop, and C. O'Dowd (2011), Primary marine organic aerosol: A dichotomy of low hygroscopicity and high CCN activity, Geophys. Res. Lett., 38, L21806, doi: 10.1029/2011GL048869. | |
dc.publisher | Wiley-Blackwell | |
dc.relation.ispartof | Geophysical Research Letters | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | cloud formation | |
dc.subject | phytoplankton | |
dc.subject | activation | |
dc.subject | particles | |
dc.subject | atmosphere | |
dc.subject | matter | |
dc.subject | growth | |
dc.title | Primary marine organic aerosol: a dichotomy of low hygroscopicity and high ccn activity | |
dc.type | Article | |
dc.identifier.doi | 10.1029/2011gl048869 | |
dc.local.publishedsource | http://onlinelibrary.wiley.com/doi/10.1029/2011GL048869/pdf | |
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