Ecological Systems and Devices Annotation << Back Interferometry Methods in the Problems of Geo-disaster Assessment Potapov I.I., Nazaryan A.N., Soldatov V.Yu. The problem of early detection of negative changes in the environment is discussed and the role of satellite interferometry methods in the solution of this problem is analyzed. An indicator for the environment instability is proposed and the scheme for the monitoring of anomalous changes in the nature is synthesize basing on this indicator. Tropical Hurricane Katrine is considered as an example of this indicator use and it was shown that use of proposed indicator of instability could detect the beginning of Hurricane Katrine with probability 0,9 two days before.