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In-situ airborne observations of the microphysical properties of the Arctic tropospheric aerosol during late spring and summer

Engvall, Ann-Christine and Krejci, Radovan and Ström, Johan and Minikin, Andreas and Treffeisen, Renate and Stohl, Andreas and Herber, Andreas (2008) In-situ airborne observations of the microphysical properties of the Arctic tropospheric aerosol during late spring and summer. Tellus B - Chemical and Physical Meteorology, 60B, pp. 392-404. DOI: 10.1111/j.1600-0889.2008.00348.x.

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Official URL: http://www3.interscience.wiley.com/journal/118533053/home

Abstract

In-situ aerosol data collected in the Arctic troposphere during a three-week period in 2004 were analysed. The measurements took place during late spring, i.e., at the time of the year when the characteristics of the aerosol distribution change from being accumulation-mode dominated to being primarily of the Aitken-mode type, a process that previously has been observed in the boundary layer. To address the question whether this transition is also detectable in the free troposphere of an aircraft-measured data from the ASTAR 2004 campaign were analysed. In this study, we present vertically as well as temporally results from both ground-based and airborne measurements of the total number concentrations of particles larger than 10 and 260 nm. Aircraft-measured size distributions of the aerosol ranging from 20 to 2200 nm have been evaluated with regard to conditions in the boundary layer as well as in the free troposphere. Furthermore an analysis of the volatile fraction of the aerosol population has been performed both for the integrated and size-distributed results. From these investigations we find that the transition takes place in the entire troposphere.

Document Type:Article
Title:In-situ airborne observations of the microphysical properties of the Arctic tropospheric aerosol during late spring and summer
Authors:
AuthorsInstitution or Email of Authors
Engvall, Ann-ChristineUniv. of Stockholm, S
Krejci, RadovanUniv. of Stockholm, S
Ström, JohanUniv. of Stockholm, S
Minikin, AndreasUNSPECIFIED
Treffeisen, RenateAWI, Potsdam
Stohl, AndreasNILU, Kjeller, N
Herber, AndreasAWI, Potsdam
Date:2008
Journal or Publication Title:Tellus B - Chemical and Physical Meteorology
Volume:60B
DOI:10.1111/j.1600-0889.2008.00348.x
Page Range:pp. 392-404
Status:Published
Keywords:Arctic, aerosol, ASTAR, troposphere
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Andreas Minikin
Deposited On:04 Dec 2008
Last Modified:12 Dec 2013 20:34

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