1 / 13

ALADIN

ALADIN. A transition year EWGLAM/SRNWP, Dubrovnik, 8/10/07. ALADIN 2006=>2007. Preparation of the ALADIN strategic 10 year plan Collective effort from: An ad-hoc ‘taskforce’ Policy Advisory Committee PM and an editing mini-group

jock
Download Presentation

ALADIN

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ALADIN A transition year EWGLAM/SRNWP, Dubrovnik, 8/10/07

  2. ALADIN 2006=>2007 • Preparation of the ALADIN strategic 10 year plan • Collective effort from: • An ad-hoc ‘taskforce’ • Policy Advisory Committee • PM and an editing mini-group • Final version hopefully available in November (quite needed to go to a multi/year planning structure (some lack of continuity in current long-term oriented efforts) • AROME preparing for 2008 operational implementation in Toulouse. • ALARO also (with some partial steps at ~10km [i.e. without 3MT yet], Cz, At …).

  3. News about AROME (as of Oct 07)‏ • Operational implementation schedule • Examples: the good and the bad • Outlook

  4. Operational implementation plan at MF 2007 2008 2009 R&D Doppler radar assimilation R&D reflectivity, convection & clouds assimilation dyn. adaptation test runs 3DVar assimilation test runs operational production Arome v1 preoperational test suite oper. prod. Arome v2 forecasters feedback & getting used to model behaviour optimisation on MF's NEC nowcasting & relocatable versions

  5. The Arome-France model config Arome-France current domain Aladin-France domain

  6. Some other AROMEs... Alps (MAP D-PHASE experiment)‏ ongoing test runs by HIRLAM partners (FMI, DMI, SMHI)‏ and some more (Hungary...)‏

  7. Short-range forecast improvement thanks to local data assimilation Here on a Paris thunderstorm case, missed by the lower resolution ALADIN assimilation, and by AROME in dynamical adaptation mode. The improvement comes from low-level SYNOP T,HU,wind obs obs dyn. adaptation fc from assimilation 3-h rain forecast

  8. A typical nice forecast of low clouds model cloudy areas

  9. A tendency to overpredict density currents near thunderstorms: under investigation

  10. A word about ALARO • The 10km mesh base-line is stabilised and is already operationally or (pre-operationally) implemented, with good objective scores, especially for precipitations. • The work on the 5km mesh convective package (integrated, prognostic and multi-scale-oriented => 3MT) is ongoing, hard (upper-air scores just at break-even) but promising.

  11. 3MT

  12. 3MT: precip. outcome (provisional) Without 3MT With 3MT

  13. Outlook (until next EWGLAM) • For AROME: • scientific work priorities: turbulence (i.e. numerical diffusion vs subgrid turbulence), physics/dynamics interaction in convective clouds, initialisation of precipitating clouds; • increase vertical resolution. • For ALARO: • Concretise the first good results with the full configuration; • Go back to check the scale independency again; • Create the conditions for a good oper support.

More Related