With this ability of radar, paleo-river covered by drift-sand was found in the south of Egypt, northern Africa, and the geological features beneath the sand in Arab peninsula was also outlined.

Along the east coast of the United States, the southernmost advance of this ice is recorded by the enormous sand and drift deposits of the terminal moraines that form Long Island and Cape Cod.

The classification of coastal dunes is the most important basic problem in the research on the landscape of the wind drift sand in coastal region.