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Characterization of a Newly Developed Aircraft-Based Laser Ablation Aerosol Mass Spectrometer (ALABAMA) and First Field Deployment in Urban Pollution Plumes over Paris During MEGAPOLI 2009

Brands, M. and Kamphus, M. and Böttger, T. and Schneider, J. and Drewnick, F. and Roth, A. and Curtius, J. and Voigt, C. and Borbon, A. and Beekmann, M. and Bourdon, A. and Perrin, T. and Borrmann, S. (2011) Characterization of a Newly Developed Aircraft-Based Laser Ablation Aerosol Mass Spectrometer (ALABAMA) and First Field Deployment in Urban Pollution Plumes over Paris During MEGAPOLI 2009. Aerospace Science and Technology, 45, pp. 46-64. DOI: 10.1080/02786826.2010.517813.

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Official URL: http://www.informaworld.com/10.1080/02786826.2010.517813

Abstract

We present here the development and first field deployment of a novel Aircraft-based Laser ABlation Aerosol MAss spectrometer (ALABAMA), which is capable of measuring the chemical composition and size of individual ambient aerosol particles in the size range between 150 and 900 nm. The instrument uses a continuous wave 532 nm laser to size and detect the particles, a pulsed 266 nm laser to ablate and ionize the particles, and a bipolar, Z-shaped time-of-flight mass spectrometer to detect positive and negative ions. The ALABAMA fits into a 19"-aircraft rack of 150 cm height and has a total weight of 140 kg, thus currently being one of the smallest and lightest-weight instruments of its type. We present a detailed characterization of ALABAMA with respect to particle beam width, detection and ablation efficiency, and example mass spectra of different particle types. The first aircraft-based field mission was performed within the MEGAPOLI summer campaign in July 2009 around Paris, France, onboard an ATR42 aircraft. During 11 research flights, corresponding to a total measuring time of approximately 44 hours, ALABAMA measured 6502 single particle mass spectra. The mass spectra were classified into eight particle classes using distinctive markers for each particle type. The most abundant particle types contained organic and secondary inorganic compounds. The results further show that differences in the abundance of observed particle types between different air masses are very pronounced when comparing air masses arriving from the greater Paris area with air masses arriving from other directions.

Document Type:Article
Title:Characterization of a Newly Developed Aircraft-Based Laser Ablation Aerosol Mass Spectrometer (ALABAMA) and First Field Deployment in Urban Pollution Plumes over Paris During MEGAPOLI 2009
Authors:
AuthorsInstitution or Email of Authors
Brands, M.MPIC Mainz/Compressor Airfoil Shop, Hamburg
Kamphus, M.MPIC Mainz/Gutenberg Univ., Mainz
Böttger, T.MPIC Mainz
Schneider, J.MPIC Mainz
Drewnick, F.MPIC Mainz
Roth, A.MPIC Mainz
Curtius, J.Goethe-Univ. Frankfurt am Main
Voigt, C.Johannes Gutenberg Univ., Mainz/DLR
Borbon, A.Univ. Paris Est, Créteil Cedex, F
Beekmann, M.Univ. Paris Est, Créteil Cedex, F
Bourdon, A.Univ. Paris Est, Créteil Cedex, F
Perrin, T.SAFIRE, Cugnaux, F
Borrmann, S.MPIC Mainz
Date:2011
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:45
DOI:10.1080/02786826.2010.517813
Page Range:pp. 46-64
Status:Published
Keywords:Aerosol Mass spectrometer, instrument development, particle composition, aerosol
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Jana Freund
Deposited On:16 Dec 2010 12:56
Last Modified:13 Feb 2013 14:59

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