When low‐frequency underwater sound “reflects” from the Arctic ice cover, not only will it be reflected from the plane, and specularly scattered from roughness elements, but it will also be diffracted at leads and reradiated from flexural waves in the ice. In the case of near‐grazing forward scatter from closely spaced roughness elements there may also be a coherent forward scattered boundary wave detectable near the under‐ice surface. These phenomena have been studied in an anechoic tank by pulse transmission from an underwater point source to a large floating acrylic model of the Arctic ice. Scaling of the flexural wave velocityB(ωh)1/2at frequency ω and ice thicknesshis accurately achieved becauseB, for the acrylic model, is well within the range of typical values in arctic ice. Scaling of the sound scattered from roughness elements is also accomplished in terms of frequency and the length dimension. Consequently, the laboratory model at frequency 50 kHz represents 100‐Hz sound encountering a typical Arctic canopy which is112 mthick and about a kilometer in extent. The physical contributors to the gross “reflection coefficient” are studied for models of a plane ice layer, an Arctic ice ridge, edges of leads, and a rubble field of ice. [Work supported by ONR.]