Udina, Mireia,
Dept. Astronomia i Meteorologia, Universitat de Barcelona, Barcelona,
Spain, Soler, MR, Dept. Astronomia i Meteorologia, Universitat de Barcelona,
Barcelona, Spain, Viana, Samuel, Agencia Estatal de Meteorolog’a, Barcelona,
Spain, YagŸe, Carlos, Dpto. Geof’sica y Meteorolog’a, Universidad Complutense
de Madrid, Madrid, Spain
Internal gravity waves
generated at the top of a density current during the SABLES2006 (Stable
Atmospheric Boundary Layer Experiment in Spain-2006) field campaign, are
reproduced through mesoscale meteorological modeling with the Weather Research
and Forecasting model (WRF-ARW version 3.1.1). Two different experiments
corresponding to two different parametrization of the surface layer and the
Planetary Boundary Layer (PBL) are considered. The first includes the MM5 similarity for surface layer and
the Yonsei University (YSU) scheme for PBL, whilst the second uses the Eta
surface layer and the Mellor-Yamada-Janjic (MYJ) PBL schemes. Results show the
capability of the WRF model to detect internal gravity waves becoming a useful
tool to study the origin and development of density currents. However, PBL sensitivity
analysis also reveals large differences between the schemes used in this study,
like their different capability to detect internal gravity waves.