An experience in loess areas topography study using cartographic and space photo materials (with special reference to the eastern part of the Caucasian foreland)

Abstract

Maps and aerial and space photoes of various scales when simultaneously analysed permit to evaluate some features of the loess topography and engineering characteristics of loess. Most reliable data on the loess areas subsidence properties can be obtained from maps and aerial photoes on the scale of l:25000. The aerial photoes permit to discern minor depressions 20 meters and more in diameter, the depressions' average diameter within the area being 25 to 30 meters.