Based on the mesoscale model METRAS, a user friendly version of the mesoscale transport and fluid model METRAS has been developed for PCs running Linux. METRAS-PCL calculates wind, temperature and humidity with either fixed boundary values or by calculating and including the diurnal changes of surface temperature and humidity. It can be applied over complex terrain using nonuniform grid spacing in all three dimensions.

The model may be used as a meteorological pre-processor for pollution transport models, using the results to drive e.g. Lagrangian particle models, kinetic simulation particle models and Eulerian dispersion models.

For the development of METRAS-PCL the mesoscale model METRAS has been adapted to the Linux environment on PCs and to end user needs. The input and model control have been simplified.

To check the model quality, runs on high performance computers and on PCs have been performed. These results have been compared and METRAS-PCL has been evaluated. A user manual explains the model set-up and the interpretation of results (currently only available in German).

To request a copy of METRAS-PCL, please write to metras(at)we dont want spamzmaw.de

Versions:

Current version: METRAS-PCL (Linux, version 4.0beta), available for 32bit and 64bit.

• METRAS-PCL (Linux, beta version) is a public domain program, developed in 2005 by K.H. Schluenzen, V. Reinhardt (Meteorological Institute, University of Hamburg). METRAS-PCL is based on METRAS (version 6) and uses the features available in METRAS-PC concerning input and output. The initialisation is changed by no longer balancing the temperature field in the 1d part of METRAS-PCL for intialising the 3d part. This reduces instabilities in 3d runs over topography found in METRAS-PC when using a stable stratification for initialisation.
• METRAS-PC (Windows, version 1.0) is a public domain program, developed in 1998 by K.H. Schlünzen, S. Dierer, H. Panskus (Meteorological Institute, University of Hamburg) and K. Bigalke (METCON Umweltmeteorologische Beratung, Pinneberg) in a project funded by the Umweltbundesamt (Berlin) under grant number FE 104 04 354. Extensions and improvements on METRAS-PC will not be made. Care has to be taken when using this model over topography with a specified stable stratification.

Last update: June 30^th 2010