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Aircraft Measurements of Aerosol Properties in Pollution Layers Transported into the Arctic in Spring and Summer Seasons

Minikin, Andreas and Weinzierl, Bernadett and Krejci, Radovan and Engvall, Ann-Christine and Schlager, Hans and Arnold, Frank and Ström, Johan and Herber, Andreas and Stohl, Andreas (2010) Aircraft Measurements of Aerosol Properties in Pollution Layers Transported into the Arctic in Spring and Summer Seasons. International Polar Year Oslo Science Conference 2010, 8.-12. Jun. 2010, Oslo, Norwegen. (Unpublished)

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Abstract

In order to improve knowledge on the properties, evolution and climate impact of the tropospheric aerosol in the Arctic region, a number of aircraft experiments have been performed in the Arctic in the last few years, which contributed to the IPY core project POLARCAT. Here we report on results of the two ASTAR (Arctic Study on Tropospheric Aerosol and Radiation) aircraft field campaigns based in Longyearbyen/Svalbard, in May 2004 and March/April 2007, and the POLARCAT-GRACE campaign based in Kangerlussuaq/Greenland in July 2008. In 2004 the AWI Dornier-228 Polar 4 and in the later campaigns the DLR Falcon research aircraft were carrying an instrument package for in situ measurements of aerosol microphysical properties consisting of condensation particle counters, a differential mobility particle sizer system, optical aerosol spectrometer probes and an absorption photometer. In the 2007 and 2008 experiments, air mass tracers (CO, O3, SO2, NOy) were measured on the aircraft as well. In this contribution, we give an overview of the observations in pollution layers found during various flights in different altitude regimes of the Polar troposphere. We focus on aerosol properties in these layers, and use tracer composition and FLEXPART analysis of air mass transport to assess possible sources (biomass burning, different industrial sources) and transport routes.

Document Type:Conference or Workshop Item (Poster)
Title:Aircraft Measurements of Aerosol Properties in Pollution Layers Transported into the Arctic in Spring and Summer Seasons
Authors:
AuthorsInstitution or Email of Authors
Minikin, AndreasUNSPECIFIED
Weinzierl, BernadettUNSPECIFIED
Krejci, RadovanUniv. of Stockholm, S
Engvall, Ann-ChristineUniv. of Stockholm, S
Schlager, HansUNSPECIFIED
Arnold, FrankMPI für Kernphysik, Heidelberg
Ström, JohanUniv. of Tromsö, N
Herber, AndreasAlfred-Wegener-Institut für Polar und Meeresforschung, Bremerhaven
Stohl, AndreasNILU, Kjeller, N
Date:10 June 2010
Status:Unpublished
Keywords:ASTAR, Falcon, Arctic, aerosol, pollution
Event Title:International Polar Year Oslo Science Conference 2010
Event Location:Oslo, Norwegen
Event Type:international Conference
Event Dates:8.-12. Jun. 2010
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:08 Dec 2010 16:33
Last Modified:08 Dec 2010 16:33

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