Development of the Mesoscale Model GRAMM-SCI: Evaluation of Simulated Highly-Resolved Flow Fields in an Alpine and Pre-Alpine Region

In this study, new developments implemented in the mesoscale model GRAMM-SCI are presented. has been specifically developed for providing flow fields sub-kilometer range. A comprehensive evaluation using wind, temperature, radiation, as well soil moisture and temperature observations an alpine valley a hilly pre-alpine region Styria (Austria) is Three one-way nested domains were used, whereby coarse run (5000 m horizontal resolution) was initialized forced ERA5 reanalysis data. The grid sizes two inner set to 1000 200 m, respectively. Comparisons carried out five-day period October 2017 which dominated by clear-sky conditions. Though, reveal quite complex structures governed interactions between synoptic thermally-driven local flows, able reproduce main features satisfactorily. addition, version of shows significant improvement with regard simulated air compared previous one. Finally, microscale flow-field simulations some monitoring sites that apparently influenced nearby buildings or vegetation.