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Climate Predictions - from monthly, seasonal to decadal time scales
Convener: Mark A. Liniger  | Co-Conveners: Stéphane Vannitsem , Francisco J. Doblas-Reyes , Wolfgang Müller , Gregory Duane , Noel Keenlyside 
 / Tue, 19 Apr, 08:30–12:00
 / Attendance Tue, 19 Apr, 17:30–19:00

Forecasts of climate at decadal, seasonal, and monthly time scales will be discussed in this session. This will include presentations and discussions of predictions for a time horizon of up to ten years from dynamical ensemble and statistical/empirical forecast systems. Further topics include

* forecast quality assessment in various climate components
* physical concepts and processes at the base of predictability
* initial drift analysis and bias adjustment
* role of anthropogenic climate change
* ensemble forecast generation and initialisation
* approaches to address model uncertainty
* statistical and dynamical downscaling
* demonstrations of end-user value for climate risk applications and climate-change adaptation

additionally, we discuss the topics in the context of alternative climate model approaches and ensemble methods, super modeling approaches or parametrisation.

A special focus will be put on results from the CMIP5 decadal prediction experiments and projects (e.g. CHFP, NACLIM, SPECS and EUPORIAS).