Wind conditions in Bergensdalen affected by the valley formation

This study analyzes how the topography of Bergensdalen, a U-shaped valley in Bergen, influences local wind conditions over a three-week period in March 2025. Wind speed and direction were measured using anemometers and wind vanes placed at five different locations. The data were then visualized using wind roses and graphs. The results show clear differences in wind conditions at different locations, due to the influence by the surrounding mountains. The main findings shows that wind speed increases with higher altitudes, while at lower altitudes the wind speed reduces due to topographical effects and friction. The main wind direction was from the southwest, although it was partly blocked by the mountains.