A tentative unmanned observation was carried out at Asuka Camp in 1985 by means of a data logger equipped with a thermometer and an anemometer. The data logger, run by Lithium batteries, was buried in the surface snow without any heater. Although the sensors were covered by heavily drifting snow during the later period of observation, the desired recordings were performed successfully. Analyses of the obtained data provided information on diurnal variations of air temperature, periods and behavior of disturbances, monthly mean air temperature and depth of snow drift at Asuka Camp in 1985
