Abstract
According to Sato (1990), sublimation rates were studied both theoretically and experimentally for the collected blowing snow in a net type collector.
Calculations based on the heat balance of the collected snow were made to examine the dependency of the sublimation rate on the following parameters: temperature and relative humidity of the air, and transfer coefficient for sensible heat, which is close to that for water vapor. The dependences are analogous to the case of a Cyclone type collector shown in Sato (1990).
From the measurements of sublimation rates in a cold room, it was found that the error in the mass flux measurment with the net type collector, caused by the sublimation of the collected blowing snow, is under that for the Cyclone type collector.
The transfer coefficient for sensible heat (water vapor) was evaluated from the measured sublimation rates. The transfer coefficient increases with the length of collected snow and with the decrease in its density. The transfer coefficient is directly proportional to the ambient wind speed.
As a result of this study charts were presented to give the sublimation rate under various meteorological conditions (air temperature, humidity, and wind speed).
