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Poster Presentation

COSMO General Meeting 2009

2 Poster Presentation | COSMO General Meeting 2009

Posters …

F. Di Giuseppe, G. Bonafè,L. Caporaso,M. Petitta

Introduction to the BASE:ALFA project

Marie Müllner, Guy de Morsier

Tuning the horizontal diffusion in theCOSMO model

Susanne Theis An Ensemble Prediction System based onCOSMO-DE

Elena Oberto, Massimo Milelli

Precipitation verification comparison in2008/2009 among the several COSMO-Model versions

Gdaly Rivin,Inna Rozinkina

COSMO-RU Today

3 Poster Presentation | COSMO General Meeting 2009

Tuning the horizontal diffusion in the COSMO modelPoster from Marie Müllner, Guy de Morsier

COSMO-7CFL & wind on level 33

Tests of modified diffusion:• no changes at boundaries (new nl: hd_corr_bd_x)• possibility to have a different (small) diffusion

in the inside of the domain with a smooth transition • do not diffuse pressure (new nl: hd_corr_in_p)

The problem:

COSMO-7 only u,v,w: 0.25 COSMO-2 only u,v,w: 0.15

Power spectra of the kinetic energy of COSMO-2 for different horizontal diffusion experiments

wave length

wave number

5

Susanne Theis, Christoph Gebhardt, Michael Buchhold,Marcus Paulat, Roland Ohl, Zied Ben Bouallègue, Carlos Peralta

Deutscher Wetterdienst

Deutscher Wetterdienst

An Ensemble Prediction Systembased on COSMO-DE

6

Precipitation verification comparison in 2008/2009 among the several COSMO-Model versions (Elena Oberto, Massimo Milelli - ARPA Piemonte)

7

COSMO-RU07

h = 2.8 km

Initial data for 00 и 12 UTC, 78 h forecasts

h = 7 km

Grid: 701 * 621 * 40

SGI Altix 4700 (1664 cores) (832 processors Itanium, 64-bit, 3,3 Tb memory)

Run time

33 min: 512 cores (16x32)

19 min: 1024 cores (32x32)

h = 7 км

COSMO-RU07 - domainHydrometeorological centre of Russian Federation