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@ARTICLE{Gierens:890250,
author = {Gierens, Klaus and Matthes, Sigrun and Rohs, Susanne},
title = {{H}ow {W}ell {C}an {P}ersistent {C}ontrails {B}e
{P}redicted?},
journal = {Aerospace},
volume = {7},
number = {12},
issn = {2226-4310},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2021-00834},
pages = {169 -},
year = {2020},
abstract = {Persistent contrails and contrail cirrus are responsible
for a large part of aviation induced radiative forcing. A
considerable fraction of their warming effect could be
eliminated by diverting only a quite small fraction of
flight paths, namely those that produce the highest
individual radiative forcing (iRF). In order to make this a
viable mitigation strategy it is necessary that aviation
weather forecast is able to predict (i) when and where
contrails are formed, (ii) which of these are persistent,
and (iii) how large the iRF of those contrails would be.
Here we study several data bases together with weather data
in order to see whether such a forecast would currently be
possible. It turns out that the formation of contrails can
be predicted with some success, but there are problems to
predict contrail persistence. The underlying reason for this
is that while the temperature field is quite good in weather
prediction and climate simulations with specified dynamics,
this is not so for the relative humidity in general and for
ice supersaturation in particular. However we find that the
weather model shows the dynamical peculiarities that are
expected for ice supersaturated regions where strong
contrails are indeed found in satellite data. This justifies
some hope that the prediction of strong contrails may be
possible via general regression involving the dynamical
state of the ambient atmosphere.},
cin = {IEK-8},
ddc = {530},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243)},
pid = {G:(DE-HGF)POF3-243},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000601762700001},
doi = {10.3390/aerospace7120169},
url = {https://juser.fz-juelich.de/record/890250},
}