差分熱量計型積雪含水率測定器

抄録

A new method for the wetness measurement of many and small pieces of snowcover is discussed. The total latent heat of the snowcover of wet and dry snow are compared with the use of an electrically heated differential calorimeter, The difference between the temperatures of the two vessels attains a certain definite value Δθ_ƒ after the snowcover in both vessels melt. Δθ_ƒ depends linearly on the wetness of the wet snowcover. In the present device, dry snowcover is displaced by a snowlike solid benzene and three samples, each of 10 g, can be measured in one operation. It is also reported that the vertical distribution of wetness within the snowcover was measured every two hours and that 6 measurements were made within 45 minutes.