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The group is chaired by Craig Bishop (NRL, Monterey, USA) and Richard Swinbank (Met Office, ExeterJohn Methven (University of Reading, UK), and includes scientific experts from a range of operational and research organizations, including the chair of the TIGGE panel.
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The PDEF working group will focus on a number of scientific challenges. Each of the challenges will be “championed” by a PDEF member, while encouraging participation by the wider scientific community. The set of challenges is intended to evolve as priorities changes. The initial challenges are listed below.
- Stochastic representation of the effect of sub-grid-scale uncertainty 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
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