“…Nevertheless, it can be shown that the exponent n is preserved at the macroscopic scale and that the macroscopic dissipation power is the volume average of the local one (Suquet, 1993). Using these properties, the macroscopic constitutive equation of snow is formulated within the framework defined by the theory of representation of anisotropic tensor functions (Smith, 1971;Liu, 1982) and by using macroscopic iso-dissipation surfaces (Green, 1972;Abouaf, 1985;Duva and Crow, 1992;Sofronis and McMeeking, 1992;Geindreau et al, 1999b;Storakers et al, 1999;Sanchez et al, 2002;Orgéas et al, 2007). The paper is organized as follows.…”