Abstract
Blowing snow affects road traffic because it induces multiple collision accidents and causes vehicles to become stuck in snowdrift on the road. To mitigate damage from snowstorms effectively, it is desirable to obtain spatial and real-time information on occurrences of blowing snow. In this study, we discussed whether it is possible to spatially obtain real time information on surface blowing snow based on data observed in the sky by a weather radar with high temporal and spatial resolution (X-band MP radar). Radar data and results of surface observation were analyzed, and an improved correction coefficient for obtaining surface snowfall intensity using radar precipitation data was proposed. Snow mass flux at a height of 340 meters was spatially calculated from radar data, and compared with measured surface snow mass flux. As a result of this study, it was shown that the correlation between the calculated value and the measured value was improved by considering the advection of the falling snow particles due to the wind.
