Category Archives: GCM

Not all CMIP5 models can be correct

Ed Hawkins has an interesting new paper which discusses why models use temperature anomalies and how the normalisation period chosen can affect the results. The main reason why anomalies are needed in the first place is because the models have a large spread … Continue reading

Posted in AGW, Climate Change, climate science, GCM, Science | Tagged , , | 20 Comments

Global Warming for US & Canada ?

  The above animation shows decadel averaged temperatures for Norh America as calculated by the GISS-E2-R1_r1i1p2 model for RCP8.5 emissions scenario. GISS-E2 is my favoured model because it best reproduces a fit I made a year ago to HADCRUT4 (see … Continue reading

Posted in AGW, Climate Change, climate science, GCM, Institiutions, IPCC, Science | Tagged , | 4 Comments

Future warming in Europe?

The following animation shows the 23 decadel averaged temperature from 1861 to 2100 based surface temperatures calculated by CNRM-CM5 (the French GCM) using the RCP8.5 emissions scenario. CNRM-C5 has an average CMIP5 climate sensitivity and predicts a net warming of ~4C … Continue reading

Posted in AGW, Climate Change, climate science, GCM, Institiutions, IPCC, Science | Tagged , | 6 Comments