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Does the onset of new particle formation occur in the planetary boundary layer? (Articolo in rivista)

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Does the onset of new particle formation occur in the planetary boundary layer? (Articolo in rivista) (literal)

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Manninen, H.E.ab, Mirme, S.b, Ehn, M.ac, Leino, K.a, Schobesberger, S.a, Junninen, H.a, Järvinen, E.ag, Kangasluoma, J.a, Nieminen, T.ah, Tillmann, R.c, Angelini, F.d, Gobbi, G.P.d, Mirme, A.b, Decesari, S.e, Wahner, A.c, Petäjä, T.a, Worsnop, D.R.af, Rohrer, F.c, Mentel, T.F.c, Kulmala, M.a (2013)
Does the onset of new particle formation occur in the planetary boundary layer?
in AIP conference proceedings; AMER INST PHYSICS, MELVILLE, NY (Stati Uniti d'America)
(literal)

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Manninen, H.E.ab, Mirme, S.b, Ehn, M.ac, Leino, K.a, Schobesberger, S.a, Junninen, H.a, Järvinen, E.ag, Kangasluoma, J.a, Nieminen, T.ah, Tillmann, R.c, Angelini, F.d, Gobbi, G.P.d, Mirme, A.b, Decesari, S.e, Wahner, A.c, Petäjä, T.a, Worsnop, D.R.af, Rohrer, F.c, Mentel, T.F.c, Kulmala, M.a (literal)

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Editor(s): DeMott, PJ; ODowd, CD Source: NUCLEATION AND ATMOSPHERIC AEROSOLS Book Series: AIP Conference Proceedings (literal)

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a Department of Physics, University of Helsinki, P.O. Box 64, Helsinki 00014, Finland b Institute of Physics, University of Tartu, Ülikooli 18, 50090 Tartu, Estonia c Institute for Energy and Climate Research (IEK-8), Forschungszentrum Jülich, 52425 Jülich, Germany d Institute of Atmospheric Sciences and Climate, ISAC-CNR, Via Fosso del Cavaliere 100, 00133, Rome, Italy e Institute for Atmospheric Sciences and Climat, ISAC-CNR, via Gobetti 101, 40129Bologna, Italy f Aerodyne Research Inc, Billerica, MA 01821, United States g Institute for Meteorology and Climate Research (IMK-AAF), Karlsruhe Institute of Technology, 76344 Karlsruhe, Germany h Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, Helsinki 00014, Finland (literal)

Titolo

Does the onset of new particle formation occur in the planetary boundary layer? (literal)

Abstract

The planetary boundary layer (PBL) is chemically and physically the most active and complex part of the atmosphere as it has high loading of both aerosols and gaseous precursors. To detect directly the first steps of new particle formation in the atmosphere, we are measuring chemical and physical processes within the PBL (altitudes up to 1 km). Our study consists of both airborne Zeppelin measurements and ground based in-situ measurements. Using Zeppelin, we measured vertical profiles of aerosol particles and chemical compounds during the growth of the PBL from sunrise until noon. These measurements are part of the PEGASOS project. It aims to quantify the magnitude of regional to global feedbacks between the atmospheric chemistry and physics, and quantify the changing climate. The Zeppelin flights are observing radicals, tarce gases, and aerosols inside the atmospheric layers up to 1 km height over Europe. The main nucleation campaigns are performed in Po Valley, Northern Italy (summer 2012), and Hyytiala, Southern Finland (spring 2013). The results will support the numerical air-quality and climate modelling. (literal)

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