ISIMIP3a focuses on impact model evaluation and improvement, and on detection and attribution of observed impacts according to the framework of the IPCC WGII-AR5 Chapter 18. ISIMIP3b is about GCM-based quantification of climate-related risks at different levels of climate change and socio-economic conditions.
Focus on model validation, in particular with respect to the representation of impacts of extreme weather events and climate variability. Includes a common global observational climate data set and a global observational impacts data set, against which the models can be bench marked.
Focuses on providing robust information about the impacts of 1.5°C global warming and related low-emission pathways, as required for the IPCC Special Report on this topic. Preindustrial control runs are included to facilitate statistical comparison with a no-climate-change case.
Focus on providing cross-sectorally consistent projections of the impacts of different levels of global warming in the 21st century. First ISIMIP simulation round.
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