Journal article
Evaluation of historical diurnal temperature range trends in CMIP5 models
SC Lewis, DJ Karoly
Journal of Climate | Published : 2013
Abstract
Diurnal temperature range (DTR) is a useful index of climatic change in addition to mean temperature changes. Observational records indicate that DTR has decreased over the last 50 yr because of differential changes in minimum and maximum temperatures. However, modeled changes in DTR in previous climate model simulations of this period are smaller than those observed, primarily because of an overestimate of changes in maximum temperatures. This present study examines DTR trends using the latest generation of global climate models participating in phase 5 of the Coupled Model Intercomparison Project (CMIP5) and utilizes the novel CMIP5 detection and attribution experimental design of variousl..
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Grants
Awarded by Australian Research Council Centre of Excellence for Climate System Science
Funding Acknowledgements
This research was supported by funding from the Australian Research Council Centre of Excellence for Climate System Science (Grant CE 110001028). This work was also supported by the NCI National Facility at the ANU. We also acknowledge the World Climate Research Programme's Working Group on Coupled Modelling, which is responsible for CMIP, and we thank climate modeling groups for producing and making available their model output. For CMIP, the U.S. Department of Energy's Program for Climate Model Diagnosis and Intercomparison provides coordinating support and led development of software infrastructure in partnership with the Global Organization for Earth System Science Portals. We thank Markus Donat and Lisa Alexander at the University of New South Wales for providing access to GHCNDEX and HadEX2 observational datasets. Finally, we thank the three reviewers for their useful comments on the manuscript.