METHOD FOR ASSESSING THE STATE OF SNOW AND ICE COVER Russian patent published in 2021 - IPC G01R27/26 

FIELD: physics.

SUBSTANCE: invention is used for remote assessment of the state of the snow and ice cover. The essence of the invention lies in the fact that additionally, the dependence of the Fresnel reflection coefficients R_vi,i+1, i,i + 1 of the interfaces of the layers of the controlled area on the angle of incidence within the range from 40 to 90° is determined, the Brewster angles θ_Bi,i+1, i, i + 1 of the interfaces of the layers are determined, the relative dielectric conductivities of the layers ε_ri+1 of the snow-ice cover are determined by the formula ε_ri+1=(tgθ_Bi,i+1], the obtained values of the relative dielectric conductivities of the layers are compared with the given values ε_vrΔ and the state of the snow and ice cover is assessed according to the condition ε_ri+1=ε_vrΔ: “snow cover”, “firn”, “ice cover” or “water”.

EFFECT: improving the identification accuracy of the constituent elements of the structure of the snow and ice cover.

1 cl, 4 dwg