abstract
During 1971 and 1972 the snow accumulated fast at Sanae as a result of the wind obstruction by the new buildings. During the second half of 1972 the snow accumulation around the neutron monitor hut caused reduction in the counting rate when the elevation of the snow rose above the screening wax layer around the 3NM64 neutron monitor. This reduction in counting rate was found to be related to the snow profile around the hut.