The flood extent products are derived from satellite imagery with a system developed and operated by the Earth Sciences Sector (ESS) of Natural Resources Canada (NRCan). This emergency mapping service is activated for large flood events in Canada. Products are generated and distributed in near real time as processed imagery becomes available. NRCan works closely with Public Safety Canada's National Headquarters in Ottawa, Regional offices, and Government Operations Centre (GOC) to define of user needs, technical feasibility and for the coordination of satellite acquisition planning.