IceTools

A high-resolution model was developed to better represent local terrain and meteorological variability. Validation using SMHI wind data showed improved accuracy compared to previous model, especially in forested areas. In a case study, using video recordings from Vattenfall Eldistribution from a site in Northern Sweden, modeled icing was directly compared to actual icing. The comparison gave valuable understanding of the performance and limitations of the model, especially with regards to ice growth and shedding. It also highlighted the importance of including a wind reduction factor in forested terrain and revealed the model's sensitivity to temperature, identified as the main driver of snow shedding events. For a more robust statistical calibration and further development of the model, more direct measurements of icing and meteorological data are of high importance.