George Zittis

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Evolution of Climate Models over the last 40 years IPCC, 2007
The dynamical down-scaling technique Regional Climate Models (RCMs) • RCMs work by increasing the resolution of the GCM in a limited area of interest. An RCM might cover an area the size of Europe, or north Africa - typically 5000 x 5000km. • The full GCM determines the very large scale effects of changing greenhouse gas concentrations on global climate. The climate (temperature, wind etc.) calculated by the GCM is used as input at the edges of the RCM. • RCMs can resolve the local impacts given small scale information about orography (land height), land use etc., giving weather and climate information at resolutions as fine as 50 or 25km. www.climateprediction.net
Page 1 and 2: Dynamical Downscaling of Climate in
Page 3: Motivation • The Mediterranean re
Page 7 and 8: The PRECIS regional climate model (
Page 9 and 10: Climate projections with PRECIS (A1
Page 11 and 12: Studying the regional climate feedb
Page 13 and 14: Climate Change - Country level info
Page 15 and 16: Case study analysis
Page 17 and 18: Contacts: George Zittis g.zittis@cy
Page 19: PRECIS vs. CRU climatology (Precipi

George Zittis

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