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Climatic change in the ionosphere and upper atmosphere and its impact
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SYSNO ASEP 0465706 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Climatic change in the ionosphere and upper atmosphere and its impact Author(s) Laštovička, Jan (UFA-U) RID, ORCID Number of authors 1 Source Title Proceedings of Living Planet Symposium 2016, ESA.SP-740. - Nordwijk : European Space Agency (ESA), 2016 / Ouwehand L. - ISSN 1609-042X - ISBN 978-92-9221-305-3 Number of pages 8 s. Publication form Medium - C Action ESA Living Planet Symposium 2016 Event date 09.05.2016 - 13.05.2016 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country NL - Netherlands Keywords long-term trends ; ionosphere ; mesosphere ; thermosphere Subject RIV DG - Athmosphere Sciences, Meteorology R&D Projects GA15-03909S GA ČR - Czech Science Foundation (CSF) Institutional support UFA-U - RVO:68378289 EID SCOPUS 84988503988 Annotation This paper briefly reviews long-term trends in the
mesosphere, thermosphere and ionosphere as a part
of global climate change. Anthropogenic emissions
cause cooling in the upper atmosphere due to
optical thinning of CO2 layer. CO2 is the dominant
trend driver but anthropogenic changes of
stratospheric ozone, long-term changes of
geomagnetic and solar activity, atmospheric wave
activity and water vapour content, and secular
change of the Earth’s magnetic field also play a
role. This makes the pattern of trends spatially as
well as temporally unstable. A consistent, although
incomplete, scenario of trends in the upper
atmosphere and ionosphere is presented. More
realistic height profiles of CO2 helped to reduce
substantially (or even remove) the quantitative
difference between observational and modelled
trends. Decreasing thermospheric density causes the
lifetime of orbiting space debris to increase, which
is becoming a significant threat to important
satellite technologies.Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2017
Number of the records: 1