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@ARTICLE{Hoffmann:808772,
author = {Hoffmann, L. and Rößler, T. and Griessbach, S. and Heng,
Yi and Stein, O.},
title = {{L}agrangian transport simulations of volcanic sulfur
dioxide emissions: impact of meteorological data products},
journal = {Journal of geophysical research / Atmospheres},
volume = {121},
number = {9},
issn = {2169-897X},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2016-02389},
pages = {4651–4673},
year = {2016},
abstract = {Sulfur dioxide (SO2) emissions from strong volcanic
eruptions are an important natural cause for climate
variations. We applied our new Lagrangian transport model
Massive-Parallel Trajectory Calculations (MPTRAC) to perform
simulations for three case studies of volcanic eruption
events. The case studies cover the eruptions of Grímsvötn,
Iceland, Puyehue-Cordón Caulle, Chile, and Nabro, Eritrea,
in May and June 2011. We used SO2 observations of the
Atmospheric Infrared Sounder (AIRS/Aqua) and a backward
trajectory approach to initialize the simulations. Besides
validation of the new model, the main goal of our study was
a comparison of simulations with different meteorological
data products. We considered three reanalyses (ERA-Interim,
MERRA, and NCAR/NCEP) and the European Centre for
Medium-Range Weather Forecasts (ECMWF) operational analysis.
Qualitatively, the SO2 distributions from the simulations
compare well with the AIRS data, but also with Cloud-Aerosol
Lidar with Orthogonal Polarization (CALIOP) and Michelson
Interferometer for Passive Atmospheric Sounding (MIPAS)
aerosol observations. Transport deviations and the critical
success index (CSI) are analyzed to evaluate the simulations
quantitatively. During the first 5 or 10 days after the
eruptions we found the best performance for the ECMWF
analysis (CSI range of 0.25–0.31), followed by ERA-Interim
(0.25–0.29), MERRA (0.23–0.27), and NCAR/NCEP
(0.21–0.23). High temporal and spatial resolution of the
meteorological data does lead to improved performance of
Lagrangian transport simulations of volcanic emissions in
the upper troposphere and lower stratosphere.},
cin = {JSC / IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)IEK-8-20101013},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511)},
pid = {G:(DE-HGF)POF3-511},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000379715800016},
doi = {10.1002/2015JD023749},
url = {https://juser.fz-juelich.de/record/808772},
}