The Eyjafjallajökull eruption in April 2010 – detection of volcanic plume using in-situ measurements, ozone sondes and lidar-ceilometer profiles Deutscher Wetterdienst, Meteorologisches Observatorium Hohenpeissenberg, Albin-Schwaiger-Weg 10, 82383 Hohenpeissenberg, Germany
26 Oct 2010
Received: 21 May 2010 – Published in Atmos. Chem. Phys. Discuss.: 18 June 2010 Abstract. Volcanic emissions from the Eyjafjallajökull volcano eruption on the Southern
fringe of Iceland in April 2010 were detected at the Global Atmosphere Watch
(GAW) station Zugspitze/Hohenpeissenberg (Germany) by means of in-situ
measurements, ozone sondes and ceilometers. Information from the German
Meteorological Service (DWD) ceilometer network (Flentje et al., 2010) aided
identifying the air mass origin. We discuss ground level in-situ measurements
of sulphur dioxide (SO2), sulphuric acid (H2SO4) and particulate
matter as well as ozone sonde profiles and column measurements of SO2 by
a Brewer spectrometer. At Hohenpeissenberg, a number of reactive gases, e.g.
carbon monoxide and nitrogen oxides, and particle properties, e.g. size
distribution and ionic composition, were additionally measured during this
period. Our results describe the arrival of the volcanic plume at Zugspitze and
Hohenpeissenberg during 16 and 17 April 2010 and its residence in the
planetary boundary layer (PBL) for several days thereafter. The ash plume was
first seen in the ceilometer backscatter profiles at Hohenpeissenberg in about 6–7 km altitude. After
entrainment into the PBL at noon of 17 April, largely enhanced values of
sulphur dioxide, sulphuric acid and super-micron-particle number concentration
were recorded at Zugspitze/Hohenpeissenberg till 21 April.
Revised: 13 October 2010 – Accepted: 14 October 2010 – Published: 26 October 2010
Citation: Flentje, H., Claude, H., Elste, T., Gilge, S., Köhler, U., Plass-Dülmer, C., Steinbrecht, W., Thomas, W., Werner, A., and Fricke, W.: The Eyjafjallajökull eruption in April 2010 – detection of volcanic plume using in-situ measurements, ozone sondes and lidar-ceilometer profiles, Atmos. Chem. Phys., 10, 10085-10092, doi:10.5194/acp-10-10085-2010, 2010.