Editing Event count (oil spills) (section)

== Monitoring and Measurement ==
Monitoring of oil spill events relies on a combination of remote sensing technologies, vessel and platform reporting, and environmental surveillance. Satellite imagery, including synthetic aperture radar and multispectral sensors, enables detection and tracking of surface oil slicks over large ocean areas. Aerial reconnaissance and ship-based observations complement satellite data by providing higher resolution assessments. Incident reports from maritime authorities, oil companies, and environmental agencies contribute to event databases. Standardized classification and reporting protocols facilitate the aggregation and comparison of oil spill counts across regions and time periods.

Within the SIGNAL system, this phenomenon is treated as a defined environmental signal whose boundaries and measurement conventions are described below.