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Model output described in the 1995 IPCC Second Assessment Report* (IS92 scenarios), 30-year meansA large number of climate change experiments using General Circulation Models (GCMs) have been completed in recent years, both equilibrium and transient experiments, and both experiments forced with changes in greenhouse gas concentrations alone and those forced with greenhouse gas and sulphate aerosol changes. The IPCC TGICA defined a set of criteria that have been applied to identify GCM experiments whose results could be deposited at the IPCC DDC, experiments which could therefore form the basis for impacts assessments undertaken from 1998 onwards. These criteria included: These criteria led to an initial selection of experiments from seven modelling centres.
From these pages predefined climate change scenarios for 30-year timeslices and an observed climate dataset can be downloaded. The scenarios have been constructed from the results of the GCM climate change experiments that can be found at the DDC GCM Data Archive and are the same data that can be viewed at the Data Visualisation Pages. Please note that daily fields are only available directly from the respective modelling centres. GCM Climate Change Scenarios Scenarios constructed from the climate change experiments performed using seven GCMs can be downloaded via the table below together with full details of the experiments.
Key: a: = Number of integrations (i.e., members of ensemble) b: = End year of integrations To access the data from the integrations click on the model name.
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