caa a22 4500 605471010 CHVBK 20210128100331.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00382-014-2314-2 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2314-2 The quasi-biennial oscillation in a warmer climate: sensitivity to different gravity wave parameterizations [Elektronische Daten] [Sebastian Schirber, Elisa Manzini, Thomas Krismer, Marco Giorgetta] In order to simulate the quasi-biennial oscillation (QBO) with a realistic period and amplitude, general circulation models commonly include parameterizations of small scale gravity waves (GW). In this work, we explore how different GW parameterization setups determine the response of QBO properties to a warmer climate. Atmosphere-only experiments in both present day and warmer climate serve as testbed to analyze the effect of four different GW parameterization setups, active in the tropics. Having tuned the GW parameterizations to produce a realistic QBO in present day climate, we analyze changes of QBO properties in the warmer climate. The QBO period decreases in two parameterization setups by ~30%, while the QBO period remains unchanged in the remaining two parameterization setups. In all parameterization setups, the QBO amplitude in the warmer climate weakens below 10hPa but shows different behaviour above 10hPa. We show that changes in QBO amplitude and changes in QBO period are inconsistent among experiments. In the chosen experimental design, the inconsistent future change in QBO properties among the suite of experiments depends solely on the choice of the GW parameterization setup. The Author(s), 2014 Quasi-biennial oscillation nationallicence Gravity waves nationallicence Parameterization nationallicence Climate change nationallicence Schirber Sebastian Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut Manzini Elisa Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut Krismer Thomas Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut Giorgetta Marco Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 825-836 0930-7575 45:3-4<825 2015 45 382 https://doi.org/10.1007/s00382-014-2314-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2314-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schirber Sebastian Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut NATIONALLICENCE 700 1- Manzini Elisa Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut NATIONALLICENCE 700 1- Krismer Thomas Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut NATIONALLICENCE 700 1- Giorgetta Marco Max Planck Insitute for Meterology, Bundesstr. 53, 20146, Hamburg, Germany aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 825-836 0930-7575 45:3-4<825 2015 45 382