English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/139764
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Evidence of atmospheric nanoparticle formation from emissions of marine microorganisms

AutorSellegri, K.; Pey, J.; Rose, C.; Culot, A.; DeWitt, H.L.; Mas, S.; Schwier, A.N.; Temime-Roussel, B.; Charriere, B.; Saiz-Lopez, A. ; Mahajan, A.S.; Parin, D.; Kukui, A.; Sempere, R.; D'Anna, B.; Marchand, N.
Fecha de publicación2016
EditorAmerican Geophysical Union
CitaciónGeophysical Research Letters 43: 6596- 6603 (2016)
ResumenEarth, as a whole, can be considered as a living organism emitting gases and particles into its atmosphere, in order to regulate its own temperature. In particular, oceans may respond to climate change by emitting particles that ultimately will influence cloud coverage. At the global scale, a large fraction of the aerosol number concentration is formed by nucleation of gas-phase species, but this process has never been directly observed above oceans. Here we present, using semicontrolled seawater-air enclosures, evidence that nucleation may occur from marine biological emissions in the atmosphere of the open ocean. We identify iodine-containing species as major precursors for new particle clusters' formation, while questioning the role of the commonly accepted dimethyl sulfide oxidation products, in forming new particle clusters in the region investigated and within a time scale on the order of an hour. We further show that amines would sustain the new particle formation process by growing the new clusters to larger sizes. Our results suggest that iodine-containing species and amines are correlated to different biological tracers. These observations, if generalized, would call for a substantial change of modeling approaches of the sea-to-air interactions.
URIhttp://hdl.handle.net/10261/139764
DOI10.1002/2016GL069389
Identificadoresdoi: 10.1002/2016GL069389
issn: 1944-8007
Aparece en las colecciones: (IQFR) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.