TY  - JOUR
AU  - Lampilahti, Janne
AU  - Manninen, Hanna E.
AU  - Nieminen, Tuomo
AU  - Mirme, Sander
AU  - Ehn, Mikael
AU  - Pullinen, Iida
AU  - Leino, Katri
AU  - Schobesberger, Siegfried
AU  - Kangasluoma, Juha
AU  - Kontkanen, Jenni
AU  - Järvinen, Emma
AU  - Väänänen, Riikka
AU  - Yli-Juuti, Taina
AU  - Krejci, Radovan
AU  - Lehtipalo, Katrianne
AU  - Levula, Janne
AU  - Mirme, Aadu
AU  - Decesari, Stefano
AU  - Tillmann, Ralf
AU  - Worsnop, Douglas R.
AU  - Rohrer, Franz
AU  - Kiendler-Scharr, Astrid
AU  - Petäjä, Tuukka
AU  - Kerminen, Veli-Matti
AU  - Mentel, Thomas F.
AU  - Kulmala, Markku
TI  - Zeppelin-led study on the onset of new particle formation in the planetary boundary layer
JO  - Atmospheric chemistry and physics
VL  - 21
IS  - 16
SN  - 1680-7324
CY  - Katlenburg-Lindau
PB  - EGU
M1  - FZJ-2021-04153
SP  - 12649 - 12663
PY  - 2021
AB  - We compared observations of aerosol particle formation and growth in different parts of the planetary boundary layer at two different environments that have frequent new particle formation (NPF) events. In summer 2012 we had a campaign in Po Valley, Italy (urban background), and in spring 2013 a similar campaign took place in Hyytiälä, Finland (rural background). Our study consists of three case studies of airborne and ground-based measurements of ion and particle size distribution from ∼1 nm. The airborne measurements were performed using a Zeppelin inside the boundary layer up to 1000 m altitude. Our observations show the onset of regional NPF and the subsequent growth of the aerosol particles happening almost uniformly inside the mixed layer (ML) in both locations. However, in Hyytiälä we noticed local enhancement in the intensity of NPF caused by mesoscale boundary layer (BL) dynamics. Additionally, our observations indicate that in Hyytiälä NPF was probably also taking place above the ML. In Po Valley we observed NPF that was limited to a specific air mass.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000691776500001
DO  - DOI:10.5194/acp-21-12649-2021
UR  - https://juser.fz-juelich.de/record/902290
ER  -