Analysis of the October 2014 subtropical cyclone using the WRF and the HARMONIE-AROME numerical models: Assessment against observations

Subtropical cyclones (STCs) are low-pressure systems characterized by having a thermal hybrid structure and sharing tropical extratropical characteristics. These widely studied due to their harmful impacts, in some cases, similar those caused hurricanes or storms. From numerical modeling point of view, they considered challenge on account rapid intensification. That is the reason why this paper analyzes simulations STC that occurred October 2014 near Canary Islands through two high-resolution models: Weather Research Forecasting (WRF) HARMONIE-AROME. In study, obtained with both models analyzed versus different observational data. METAR data used validate surface simulated variables throughout life while soundings chosen study tropospheric behavior. Finally, MSG-SEVIRI satellite brightness temperature be compared temperatures give information cloud top spatial atmospheric system. The 2 m temperature, dew-point 10 wind speed do not show significant deviations when carrying out validation against available It outstanding good results found for HARMONIE-AROME model analyzing sounding dates. Additionally, regarding sounding, better presented general model, being WRF slightly during pre-STC stage. Moreover, skillfulness highlighted simulating infrared distribution model.