The meso-NH atmospheric simulation system. Part. I : adiabatic formulation and control simulations
Le système de simulation atmosphérique meso-NH. Part. I : formulation adiabatique et simulations des contrôles
Cordoneanu, E. ; Geleyn, J.-F.
Année de publication
1998
A three-dimensional meso-scale NWP model, the Arpege / Aladin model, has<br> been used to examine the characteristics of the sea breeze circulations<br> over an area with an irregular coastline and complex surface-heating <br>patterns on the Romanian Black Seaside. The upslope wind on the <br>Carpathian-Balkanian mountain slopes has also been studied. Given the <br>importance of physical parameterization in the simulation of such <br>phenomena, a comprehensive description of the physical package of Arpege<br> / Aladin is first presented. The results of the simulations compare <br>reasonably well with data available from surface Romanian stations, <br>radar and satellite pictures. Experiments with ideal data have also been<br> performed and essential surface features for these circulations were <br>identified. The results show that the Arpege / Aladin model is well <br>equipped for the description of such phenomena without any specific <br>tuning. Concerning the sea breeze on the Romanian Seaside, the real <br>experiments have shown that severe weather events can happen along the <br>breeze front. This is, in fact, the cumulated effect of the breeze front<br> and the afternoon convection over the coastal zone with reduced <br>vegetation cover.</div>
Accès à la notice sur le site du portail documentaire de Météo-France