Radio echo sounding of sea ice

1. Morphological structure and state (i.e. temperature, salinity) of drifting sea ice are discussed. 2. The results of laboratory and natural investigations of UHF electromagnetic characteristics ( and tg ) of drifting sea ice are given. The estimate of electromagnetic contrast on ice-sea water boundary is given. 3. The results of experiments on radio echo sounding of drifting sea ice from aircraft are presented.