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@ARTICLE{Berkes:838694,
author = {Berkes, Florian and Neis, Patrick and Schultz, Martin G.
and Bundke, Ulrich and Rohs, Susanne and Smit, Herman G.J.
and Wahner, Andreas and Konopka, Paul and Boulanger, Damien
and Nédélec, Philippe and Thouret, Valerie and Petzold,
Andreas},
title = {{I}n situ temperature measurements in the upper troposphere
and lowermost stratosphere from 2 decades of {IAGOS}
long-term routine observation},
journal = {Atmospheric chemistry and physics},
volume = {17},
number = {20},
issn = {1680-7324},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {FZJ-2017-07255},
pages = {12495 - 12508},
year = {2017},
abstract = {Despite several studies on temperature trends in the
tropopause region, a comprehensive understanding of the
evolution of temperatures in this climate-sensitive region
of the atmosphere remains elusive. Here we present a unique
global-scale, long-term data set of high-resolution in situ
temperature data measured aboard passenger aircraft within
the European Research Infrastructure IAGOS (In-service
Aircraft for a Global Observing System;
http://www.iagos.org). This data set is used to investigate
temperature trends within the global upper troposphere and
lowermost stratosphere (UTLS, < 13 km) for the
period of 1995–2012 in different geographical regions and
vertical layers of the UTLS. The largest number of
observations is available over the North Atlantic. Here, a
neutral temperature trend is found within the lowermost
stratosphere. This contradicts the temperature trend in the
European Centre for Medium-Range Weather Forecasts (ECMWF)
ERA-Interim reanalysis, in which a significant $(95 \%$
confidence) temperature increase of +0.56 K decade−1
is found. Differences between trends derived from
observations and reanalysis data can be traced back to
changes in the temperature difference between observation
and model data over the period studied. This study underpins
the value of the IAGOS temperature observations as an anchor
point for the evaluation of reanalyses and its suitability
for independent trend analyses.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243) / HITEC - Helmholtz
Interdisciplinary Doctoral Training in Energy and Climate
Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF3-243 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000413413800001},
doi = {10.5194/acp-17-12495-2017},
url = {https://juser.fz-juelich.de/record/838694},
}