%0 Article
%T Observations on the soil frost of the winter 1941-1942
%A Kokkonen, P.
%D 1942
%J Acta Forestalia Fennica
%V 50
%N 22
%R doi:10.14214/aff.7375
%U https://silvafennica.fi/article/7375
%X <p>Soil frost from the winter 1941-1942 was of a special form. To create such a strong soil frost there need to be capillary soil form and long period of permanent and intense cold, meaning minus temperatures.  The frost layer was thicker than normally.</p><p>Such a frost causes many problems on the fields and roads when the soil rises because of the frost and then falls unevenly back when the frost melts.</p>The PDF contains a summary in Finnish.