CARIBIC aircraft measurements of Eyjafjallajökull volcanic clouds in April/May 2010
-
Published:2012-01-19
Issue:2
Volume:12
Page:879-902
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Rauthe-Schöch A.,Weigelt A.,Hermann M.,Martinsson B. G.,Baker A. K.,Heue K.-P.,Brenninkmeijer C. A. M.,Zahn A.,Scharffe D.,Eckhardt S.,Stohl A.,van Velthoven P. F. J.
Abstract
Abstract. The Civil Aircraft for the Regular Investigation of the Atmosphere Based on an Instrument Container (CARIBIC) project investigates physical and chemical processes in the Earth's atmosphere using a Lufthansa Airbus long-distance passenger aircraft. After the beginning of the explosive eruption of the Eyjafjallajökull volcano on Iceland on 14 April 2010, the first CARIBIC volcano-specific measurement flight was carried out over the Baltic Sea and Southern Sweden on 20 April. Two more flights followed: one over Ireland and the Irish Sea on 16 May and the other over the Norwegian Sea on 19 May 2010. During these three special mission flights the CARIBIC container proved its merits as a comprehensive flying laboratory. The elemental composition of particles collected over the Baltic Sea during the first flight (20 April) indicated the presence of volcanic ash. Over Northern Ireland and the Irish Sea (16 May), the DOAS system detected SO2 and BrO co-located with volcanic ash particles that increased the aerosol optical depth. Over the Norwegian Sea (19 May), the optical particle counter detected a strong increase of particles larger than 400 nm diameter in a region where ash clouds were predicted by aerosol dispersion models. Aerosol particle samples collected over the Irish Sea and the Norwegian Sea showed large relative enhancements of the elements silicon, iron, titanium and calcium. Non-methane hydrocarbon concentrations in whole air samples collected on 16 and 19 May 2010 showed a pattern of removal of several hydrocarbons that is typical for chlorine chemistry in the volcanic clouds. Comparisons of measured ash concentrations and simulations with the FLEXPART dispersion model demonstrate the difficulty of detailed volcanic ash dispersion modelling due to the large variability of the volcanic cloud sources, extent and patchiness as well as the thin ash layers formed in the volcanic clouds.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference75 articles.
1. Airbus Customer Services: {G}etting to grips with aircraft performance, Tech. rep., Airbus S.A.S., Blagnac, France, 2002. 2. Andersson, S. and Martinsson, B.: {C}omposition and evolution of volcanic aerosol following three eruptions 2008–2010, in preparation, 2012. 3. Ansmann, A., Tesche, M., Gro{ß}, S., Freudenthaler, V., Seifert, P., Hiebsch, A., Schmidt, J., Wandinger, U., Mattis, I., M{ü}ller, D., and Wiegner, M.: T}he 16 {A}pril 2010 major volcanic ash plume over central {E}urope: {EARLINET lidar and AERONET photometer observations at {L}eipzig and {M}unich, Germany, Geophys. Res. Lett., 37, L13810, https://doi.org/10.1029/2010GL043809, 2010. 4. Ansmann, A., Tesche, M., Seifert, P., Gro{ß}, S., Freudenthaler, V., Apituley, A., Wilson, K. M., Serikov, I., Linn{é}, H., Heinold, B., Hiebsch, A., Schnell, F., Schmidt, J., Mattis, I., Wandinger, U., and Wiegner, M.: A}sh and fine‐mode particle mass profiles from {EARLINET}-{AERONET observations over central {E}urope after the eruptions of the {E}yjafjallaj{ö}kull volcano in 2010, J. Geophys. Res., 116, D00U02, https://doi.org/10.1029/2010JD015567, 2011. 5. Baker, A. K., Slemr, F., and Brenninkmeijer, C. A. M.: A}nalysis of non-methane hydrocarbons in air samples collected aboard the {CARIBIC passenger aircraft, Atmos. Meas. Tech., 3, 311–321, https://doi.org/10.5194/amt-3-311-2010, 2010.
Cited by
25 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|