caa a22 4500 60547396X CHVBK 20210128100345.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00382-014-2234-1 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2234-1 The diurnal cycle of marine cloud feedback in climate models [Elektronische Daten] [Mark Webb, Adrian Lock, Alejandro Bodas-Salcedo, Sandrine Bony, Jason Cole, Tsuyoshi Koshiro, Hideaki Kawai, Carlo Lacagnina, Frank Selten, Romain Roehrig, Bjorn Stevens] We examine the diurnal cycle of marine cloud feedback using high frequency outputs in CFMIP-2 idealised uniform +4K SST perturbation experiments from seven CMIP5 models. Most of the inter-model spread in the diurnal mean marine shortwave cloud feedback can be explained by low cloud responses, although these do not explain the model responses at the neutral/weakly negative end of the feedback range, where changes in mid and high level cloud properties are more important. All of the models show reductions in marine low cloud fraction in the warmer climate, and these are in almost all cases largest in the mornings when more cloud is present in the control simulations. This results in shortwave cloud feedbacks being slightly stronger and having the largest inter-model spread at this time of day. The diurnal amplitudes of the responses of marine cloud properties to the warming climate are however small compared to the inter-model differences in their diurnally meaned responses. This indicates that the diurnal cycle of cloud feedback is not strongly relevant to understanding inter-model spread in overall cloud feedback and climate sensitivity. A number of unusual behaviours in individual models are highlighted for future investigation. Crown Copyright, 2014 Diurnal cycle nationallicence Cloud feedback nationallicence Climate change nationallicence Webb Mark Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut Lock Adrian Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut Bodas-Salcedo Alejandro Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut Bony Sandrine Laboratoire de Météorologie Dynamique/Institute Pierre Simon Laplace (IPSL), Paris, France aut Cole Jason Canadian Centre for Climate Modelling and Analysis (CCCMa), Victoria, BC, Canada aut Koshiro Tsuyoshi Meteorological Research Institute (MRI), Tsukuba, Japan aut Kawai Hideaki Meteorological Research Institute (MRI), Tsukuba, Japan aut Lacagnina Carlo The Royal Netherlands Meteorological Institute, (KNMI), De Bilt, The Netherlands aut Selten Frank The Royal Netherlands Meteorological Institute, (KNMI), De Bilt, The Netherlands aut Roehrig Romain Centre National de Recherches Météorologiques (CNRM), Toulouse, France aut Stevens Bjorn Max Planck Institute for Meteorology (MPI-M), Hamburg, Germany aut Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1419-1436 0930-7575 44:5-6<1419 2015 44 382 https://doi.org/10.1007/s00382-014-2234-1 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/s00382-014-2234-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Webb Mark Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut NATIONALLICENCE 700 1- Lock Adrian Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut NATIONALLICENCE 700 1- Bodas-Salcedo Alejandro Met Office Hadley Centre, FitzRoy Road, EX1 3PB, Exeter, UK aut NATIONALLICENCE 700 1- Bony Sandrine Laboratoire de Météorologie Dynamique/Institute Pierre Simon Laplace (IPSL), Paris, France aut NATIONALLICENCE 700 1- Cole Jason Canadian Centre for Climate Modelling and Analysis (CCCMa), Victoria, BC, Canada aut NATIONALLICENCE 700 1- Koshiro Tsuyoshi Meteorological Research Institute (MRI), Tsukuba, Japan aut NATIONALLICENCE 700 1- Kawai Hideaki Meteorological Research Institute (MRI), Tsukuba, Japan aut NATIONALLICENCE 700 1- Lacagnina Carlo The Royal Netherlands Meteorological Institute, (KNMI), De Bilt, The Netherlands aut NATIONALLICENCE 700 1- Selten Frank The Royal Netherlands Meteorological Institute, (KNMI), De Bilt, The Netherlands aut NATIONALLICENCE 700 1- Roehrig Romain Centre National de Recherches Météorologiques (CNRM), Toulouse, France aut NATIONALLICENCE 700 1- Stevens Bjorn Max Planck Institute for Meteorology (MPI-M), Hamburg, Germany aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1419-1436 0930-7575 44:5-6<1419 2015 44 382