Аннотация:Domestic Technologies of Operational Satellite Monitoring of Seas. By V.V. Zatyagalova and N.A. Filimonova Earth remote sensing data opened new possibilities for operational monitoring of oil pollutions of seas, their drift dynamics, origin detection and emergency situations risk reduction. Operational radar monitoring of ship position and oil spills technology developed by RDC "ScanEx" is based upon direct licensed acquisition, operational processing and analysis of radar images delivered by ENVISAT-1 and RADARSAT-1 satellites to the proprietary network of receiving stations "UniScan". The results of the monitoring in the form of maps displaying oil spills location or geoinformation complex products presented in a single information space are transferred to user within 1.5-3 hours after imaging via ftp or interface based on "Kosmosnimki" geoportal. The technology was tested in the framework of the Black Sea operational monitoring in 2008 and also a range of the Russian seas one-time monitoring projects conducted in 2008-2009.