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Minimizing light absorption measurement artifacts of the Aethalometer: evaluation of five correction algorithms

Collaud Coen, Martine and Weingartner, Ernest and Apituley, Arnoud and Ceburnis, Darius and Fierz-Schmidhauser, R. and Flentje, Harald and Henzing, J.S. and Jennings, S. Gerard and Moerman, Marcel and Petzold, Andreas and Schmid, Ottmar and Baltensperger, Urs (2010) Minimizing light absorption measurement artifacts of the Aethalometer: evaluation of five correction algorithms. Atmospheric Measurement Techniques, 3, pp. 457-474. DOI: 10.5194/amt-3-457-2010.

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Official URL: http://www.atmos-meas-tech.net/3/457/2010/

Abstract

The aerosol light absorption coefficient is an essential parameter involved in atmospheric radiation budget calculations. The Aethalometer (AE) has the great advantage of measuring the aerosol light absorption coefficient at several wavelengths, but the derived absorption coefficients are systematically too high when compared to reference methods. Up to now, four different correction algorithms of the AE absorption coefficients have been proposed by several authors. A new correction scheme based on these previously published methods has been developed, which accounts for the optical properties of the aerosol particles embedded in the filter. All the corrections have been tested on six datasets epresenting different aerosol types and loadings and include multi-wavelength AE and white-light AE. All the corrections have also been evaluated through comparison with a Multi-Angle Absorption Photometer (MAAP) for four datasets lasting between 6 months and five years. The modification of the wavelength dependence by the different corrections is analyzed in detail. The performances and the limits of all AE corrections are determined and recommendations are given.

Document Type:Article
Title:Minimizing light absorption measurement artifacts of the Aethalometer: evaluation of five correction algorithms
Authors:
AuthorsInstitution or Email of Authors
Collaud Coen, MartineMeteoSwiss, Payerne, CH
Weingartner, ErnestPSI, Villigen, CH
Apituley, ArnoudNational Inst. for Public Health and the Environment, Bilthoven, NL
Ceburnis, DariusNational Univ. of Ireland, Galway
Fierz-Schmidhauser, R.PSI, Villigen, CH
Flentje, HaraldDWD, Hohenpeissenberg
Henzing, J.S.TNO, Utrecht, NL
Jennings, S. GerardNational Univ. of Ireland, Galway
Moerman, MarcelNational Inst. for Public Health and the Environment, Bilthoven, NL
Petzold, AndreasDLR
Schmid, OttmarGSF, München
Baltensperger, UrsPSI, Villigen, CH
Date:2010
Journal or Publication Title:Atmospheric Measurement Techniques
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:3
DOI:10.5194/amt-3-457-2010
Page Range:pp. 457-474
Status:Published
Keywords:aerosol absorption, aerosol properties, black carbon, soot, MAAP, Aethalometer, aerosol measurement, aerosol climate, effects
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Umweltwirkungen des Verkehrs (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Andreas Petzold
Deposited On:14 Dec 2009 12:37
Last Modified:12 Dec 2013 20:47

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