Results and deliverables
1. RCA4 simulations over Europe
The latest version of the Rossby Centre Regional Climate model - RCA4 is used to produce high-resolution regional climate simulations over Europe covering the Euro-CORDEX domain defined in the Coordinate Regional Downscaling Experiment - CORDEX.
The Era-Interim reanalysis (1980-2010) and 9 coupled atmosphere ocean general circulation models (AOGCMs) from the Coupled Model Intercomparison Project Phase 5 (CMIP5) have been downscaled over the Euro-CORDEX domain at 0.44 resolution. All AOGCM simulations have run in a transient mode for the 1951-2005 historical period following be two Representative Concentration Pathways (RCPs) scenarios – RCP45 and 85 for the 2006-2100 period.
One simulation driven by the EC-EARTH model has also been downscaled for a stabilization scenario - RCP26.
The 0.44 Euro-CORDEX ensemble produced by RCA4 is the largest ever ensemble of regional climate simulations over Europe simulated by one regional climate model driven by different AOGCMs.
A smaller sub-set, 5 AOGCMs of 9, has been chosen for high-resolution downscaling at 0.11 resolution over the same Euro-CORDEX domain. The ERA-Interim (1980-2010) and historical simulations (1970-2005) for all five AOGCMs have already been completed and RCP’s simulations are ongoing now (January 2013).
9 AOGCMs from CMIP5 project downscaled at 0.44 resolution: CanESM2, CNRM-CM5, HadGEM2-ES, IPSL-CM5A-MR, NorESM1-M, EC-EARTH, MIROC5, GFDL-ESM2M and MPI-ESM-LR.
5 AOGCMs from CMIP5 project chosen for downscaling at 0.11 resolution: CNRM-CM5, HadGEM2-ES, IPSL-CM5A-MR, EC-EARTH, and MPI-ESM-LR.
More about: WMO - Emission scenarios
2. HARMONIE system for ultra-high resolution climate simulations
A new high-resolution non-hydrostatic regional climate model - HARMONIE has been developing at Rossby Center since 2011. The HARMONIE system is based on numerical weather prediction (NWP) model which is specifically developed to allow integrations at convective-resolving resolutions, e.g. ~1-3km per grid box. A couple of 10-year evaluation simulations over Europe have been performed with the first version of the HARMONIE climate model system using two different horizontal resolutions - 15 and 6 km and have shown promising results. Development of the HARMONIE system is continuing at Rossby Centre with first simulations expected in 2013.