A new WWRP working group
Following the completion of THORPEX, a new World Weather Research Programme (WWRP) working group on Predictability, Dynamics and Ensemble Forecasting (PDEF) has been formed.
The new working group will:
- combine elements of the former THORPEX working groups on GIFS-TIGGE and PDP;
- involve both operational and academic communities in scientific research and development challenges;
- provide a centre of scientific expertise on dynamics, predictability and ensemble forecasting that was previously not covered in the core WWRP programme;
- support the WWRP research projects, including the 3 THORPEX legacy projects, S2S, PPP and HIWeather, plus other forecast demonstration projects (FDPs) and research and development projects (RDPs).
The group is chaired by Sarah-Jane Lock (ECMWF) and Laure Raynaud (Meteo-France), and includes scientific experts from a range of operational and research organizations, including the chair of the TIGGE panel.
Scientific Challenges
The PDEF working group will focus on a number of scientific challenges. The set of challenges is intended to evolve as priorities changes. The initial challenges are listed below.
- Stochastic representation of the effect of unresolved processes in numerical models
- Construction of ensemble initial conditions
- Interactions of diabatic processes with meso/synoptic scale dynamics
- Assessment of multi-model ensembles and calibration techniques
- Coupled modelling & assimilation