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System Configuration Information

These information can be changed if the corresponding operational model is modified.

GPC Offenbach

GPC Offenbach
When was the current long-range forecast system implemented? October 2018
Is it a coupled forecast system? Yes, ECHAM6.3.04, MPIOM1.6.3 plus submodels
Is it a Tier-2 forecast system? No
Atmospheric model resolution T127, corresponding to 0.9°x0.9° or~100 km on regular Gaussian grid
Ocean model (if applicable) TP04 corresponding to 0.4° on a tripolar grid
Source of atmospheric initial conditions ECMWF ERA-interim (for hindcasts), ECMWF IFS analyses (for forecasts)
Source of ocean initial conditions ECMWF ORA-S5 (both hindcast/forecasts )
If Tier-2, what is the source of SST predictions? N/A
Hindcast period 1990-2017
Ensemble size for the hindcasts 30 members
How is the hindcast ensemble configured? Bred vectors in the ocean for 3D temperature and salinity & perturbed physical parameters in the atmosphere
Ensemble size for the forecast 50
How is the forecast ensemble configured? Same as hindcast ensemble
Length of forecasts 6 months
Data format Netcdf, grib is possible
What is the latest date predicted anomalies for the next month/season become available? 8th of each month
How are the forecast anomalies constructed? Departures from the model climate estimated by the hindcast integrations
URL where forecast are displayed http://www.dwd.de/EN/ourservices/seasonals_forecasts/charts.html?nn=495490
Point of Contact jahreszeiten.vorhersage@dwd.de
kristina.froehlich@dwd.de
andreas.paxian@dwd.de
katharina.isensee@dwd.de

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