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Joint Meeting of CSSI and LSMG at Hungarian Meteorological Service

This joint meeting aims to discuss coordination, establish priorities, and survey relations with other SRNWP groups. Topics of discussions include physics, data assimilation, coupling and dynamics, and general issues.

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Joint Meeting of CSSI and LSMG at Hungarian Meteorological Service

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  1. JOINT MEETING OF CSSI and LSMG ANDRÁS HORÁNYI Hungarian Meteorological Service

  2. CSSI • Coordinators for Scientific and Strategic Issues • Mandate from the Assembly of Partners • Members: L. Gerard (Be), R. Brozkova (Cz), D. Giard (F), A. Horányi (H), A. Mokssit (Mo), D. Banciu (R) • Tasks: coordination, establish priorities, survey relations with other SRNWP groups, follow AROME project • Actions: meetings (Budapest, de Bilt), proposal of new type of coordination, participation on CIPN

  3. LSMG • LACE (Scientific) Management Group • Members: Working Group Leaders (G. Bölöni, P. Smolikova, T. Haiden), ALADIN Source Code Coordinator (O. Spaniel), Data Manager (S. Ivatek-Sahdan). Project Leader (D. Klaric)

  4. TOPICS OF DISCUSSIONS (physics) • Problematics of physics in view of AROME (timestep organisation, diabatic forcing, convection scheme, problems related to the „grey zone”, physics-dynamics interface, first preliminary results, etc.) • How to coordinate the different developments (ALADIN, meso-NH, AROME) for a smooth convergence? • How to maintain and merge the different versions?

  5. TOPICS OF DISCUSSIONS (data assimilation) • „Upscaling/downscaling” difficulties, cost issues, longer range plans for 4d-var, new observations) • How to distribute (share) the development work (AROME and ALADIN)? • How the coordination between the two teams would be ensured (more general)?

  6. TOPICS OF DISCUSSIONS (coupling and dynamics) • Coupling (progress at HIRLAM for revisiting the Davies scheme, two-way coupling) • How to tackle the revisit of coupling strategy? • Non-hydrostatic dynamics (robust NH dynamics, „chimney” problem) • No real obstacles foreseen, common for ALADIN and AROME

  7. TOPICS OF DISCUSSIONS (general) • Upscaling or downscaling (2-3 km to 10 km or reverse)? • Cost issue (driven by physics, but applying everywhere)? • Maintenance, phasing (who, when)??

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