In-Situ Uniaxial Compression Tests of Level Ice: Part II — Ice Strength Spatial Distribution

Part I of this paper describes in-situ field tests of ice strength estimation in relation to the different length scales. Part II deals with the spatial heterogeneity of the ice strength in landfast level ice for the different tests areas. The paper presents a statistical analysis of the ice strength distribution for a Point-area, for a line and for an area in the ice cover. The ice strength distribution for a Point-area varied seasonally. It was estimated in terms of the coefficient of variation about 24.9% at the end of the season. For the coldest months the ice strength variability was around 40%. For the test area the strength spatial variability for the ice samples from the certain ice depth below the ice cover surface was about 19.4% for warm ice and 35.8% for cold ice. The ice strength heterogeneity for a line was determined of 14.4% in case of warm ice.