The principal results of many years of experience in work on the use of satellite radar data in solving problems in hydrometeorology and environmental monitoring are presented. This experience shows that the aforementioned information has come into most widespread use when solving problems involved in the monitoring of ice conditions in the Earth's polar regions. In the final analysis, satellite radar images have become the principal source of information in support for hydrometeorological work in the Arctic and Antarctica, and are important in climatological studies as well.