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Transfer of Regional NWP Capabilities to Developing Countries Detlev Majewski, Deutscher Wetterdienst, Germany e-mai

13 Febuary 2008. GEO CBC Hannover. Stepwise introduction of regional NWP. Defined at the WMO Workshops in Pretoria (2002) and Casablanca (2005):Acquiring and using existing NWP grid point products;Acquiring and running a local NWP model without data analysis, but with verification;Running a local model, without data analysis, fine tuning the system for the local region; with statistical adaptation;Running a local model with local analysis of data..

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Transfer of Regional NWP Capabilities to Developing Countries Detlev Majewski, Deutscher Wetterdienst, Germany e-mai

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    1. 13 Febuary 2008 GEO CBC Hannover Transfer of Regional NWP Capabilities to Developing Countries Detlev Majewski, Deutscher Wetterdienst, Germany e-mail: detlev.majewski@dwd.de

    2. 13 Febuary 2008 GEO CBC Hannover

    3. 13 Febuary 2008 GEO CBC Hannover Main components of a regional forecasting system and corresponding data flow

    4. 13 Febuary 2008 GEO CBC Hannover Key issues for NWP capacity building

    5. 13 Febuary 2008 GEO CBC Hannover GME data as lateral boundary data of HRM

    6. 13 Febuary 2008 GEO CBC Hannover HRM at KMD, Kenya

    7. 13 Febuary 2008 GEO CBC Hannover Lessons learned, next steps Introduce NWP stepwise, taking the local knowledge into account. Build up a team of dedicated scientists, encourage networking with the HRM community worldwide, e.g. via http://groups.google.de/group/hrm_help. Aim for early “showpieces” to convince local users. Try to streamline the total forecasting process, not only the NWP part; involve the local forecasters quite early, e.g. in the definition of forecast products and graphics. Start objective verification of the NWP model against local observations as soon as possible. Try to involve local universities by offering the NWP model, data for case studies and computer resources. Overall goal: Achieve a sustainable improvement of the forecasting process at the service. Regional NWP Training in Botswana: 3 – 9 April 08 Next Regional NWP Training Workshop at DWD: 14 - 25 July 08

    8. 13 Febuary 2008 GEO CBC Hannover Building blocks for regional NWP Topographical data of region at ~ 1 km x 1 km resolution Regional NWP model (e.g. ALADIN, HRM, MM5/WRF/ETA, RAMS) Initial and lateral boundary data from global NWP model (e.g. GFS, GME, JMA, ECMWF) Reliable and reasonable fast data connection between global centre and national weather service running the regional model Computer system (Linux PC cluster) to run regional model Graphical display of forecasts (e.g. GrADS, DIANA: Open Source Visualization of the Norwegian Met. Service); Web pages Verification package (e.g. ORMVERIF) Regional NWP training by advanced centres (e.g. Météo France, DWD, KMA, NCEP, UKMO, SAWS, ACMAD, WMO) Training of computer skills (Linux, Fortran, html) Training of local forecasters in model interpretation

    9. 13 Febuary 2008 GEO CBC Hannover Any questions?

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