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@ARTICLE{Mangold:35993,
author = {Mangold, A. and Wagner, R. and Saathoff, H. and Schurath,
U. and Giesemann, C. and Ebert, V. and Krämer, M. and
Möhler, O.},
title = {{E}xperimental investigations of ice nucleation by
different types of aerosols in the aerosol chamber
{AIDA}:implications to microphysics of cirrus clouds},
journal = {Meteorologische Zeitschrift},
volume = {14},
issn = {0941-2948},
address = {Stuttgart},
publisher = {E. Schweizerbart Science Publishers},
reportid = {PreJuSER-35993},
pages = {485 - 497},
year = {2005},
note = {Record converted from VDB: 12.11.2012},
abstract = {The aerosol chamber AIDA was used as a moderate expansion
cloud chamber with cooling rates at the onset of ice
nucleation between -1.3 and -3.0 K min(-1) to investigate
the nucleation and growth of ice crystals in sulphuric acid,
ammonium sulphate, and mineral dust aerosols at temperatures
between 196 and 224 K. Supercooled sulphuric acid droplets
with mean diameters of about 0.2 to 0.3 mu m nucleated ice
by homogeneous freezing at RHice increasing from 144 to
$166\%$ with temperatures from 220 and 196 K. This is in
good agreement both with previous results of AIDA
experiments and literature data. In contrast, ammonium
sulphate particles of similar size nucleated ice at the
significantly lower RHice of 120 to $127\%$ in the same
temperature range. Fourier-Transform infrared (FTIR)
extinction spectra of the aerosol revealed that the ammonium
sulphate particles, mainly consisted of the liquid phase.
The number concentration of ice crystals formed during the
homogeneous freezing experiments agree well with model
results from the literature. Higher ice crystal number
concentrations formed during the ammonium sulphate, compared
to the sulphuric acid experiments, can be explained by the
also somewhat higher cooling rates at ice nucleation.
Deposition ice nucleation on mineral dust particles turned
out to be the most efficient ice nucleation mechanism both
with respect to RHice at the onset of ice nucleation (102 to
$105\%$ in the temperature range 209 to 224 K) and the ice
crystal number concentration. Almost all mineral dust
particles nucleated ice at the lower temperatures.},
keywords = {J (WoSType)},
cin = {ICG-I},
ddc = {550},
cid = {I:(DE-Juel1)VDB47},
pnm = {Chemie und Dynamik der Geo-Biosphäre},
pid = {G:(DE-Juel1)FUEK257},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000233148300007},
doi = {10.1127/0941-2948/2005/0053},
url = {https://juser.fz-juelich.de/record/35993},
}