caa a22 4500 605471207 CHVBK 20210128100331.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00382-014-2337-8 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2337-8 Kjellsson Joakim Department of Meteorology, Bolin Centre for Climate Research, Svante Arrhenius vag 16C, 10691, Stockholm, Sweden aut Weakening of the global atmospheric circulation with global warming [Elektronische Daten] [Joakim Kjellsson] This study finds that the global atmospheric circulation weakens, i.e. transports less mass, by about 5% per degree of global warming as a result of anthropogenic emissions. This is found by calculating a global thermodynamic mass stream function and diagnosing long-term changes in a set of climate-model simulations in the Intergovernmental Panel on Climate Change 5th assessment report. The global atmospheric circulation also expands in thermodynamic coordinates due to increased dry static energy and latent heat in the tropical troposphere. The surface warming and moistening follows a Clausius-Clapeyron relation and tropical moist ascent remains nearly moist adiabatic. Furthermore, the meridional overturning circulation is found to only weaken slightly suggesting that the dominant change is in the zonally asymmetric circulation, i.e. the Walker circulation. The total poleward energy transport increases while the poleward mass transport decreases. The results are found to be robust across the climate models studied. The Author(s), 2014 Climate model nationallicence CMIP5 nationallicence Stream function nationallicence Thermodynamic nationallicence Energy transport nationallicence Global warming nationallicence Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 975-988 0930-7575 45:3-4<975 2015 45 382 https://doi.org/10.1007/s00382-014-2337-8 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/s00382-014-2337-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kjellsson Joakim Department of Meteorology, Bolin Centre for Climate Research, Svante Arrhenius vag 16C, 10691, Stockholm, Sweden aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 975-988 0930-7575 45:3-4<975 2015 45 382