Defense works change map


  • The Coast Line Change Map provides the delineation of the stretches of coast on which changes occurred between two different time instants (initial and final date), classifying them according to the type of variation, which can be
    • Variation in the typology of the stretch of coast (e.g. from natural to artificial)
    • Shifting the shoreline (retreat or advance)

Operating scenarios

  • Post event

Technical specification

Spatial resolution1 – 5m
Coverage areaMaximum extension of the AOI: 50km
Geographic accuracyCircular Error 90%: <= 2 pixels (equal to 2 times the spatial resolution of the EO data used) or equal to that of the Coastline Maps products (State Maps) used as input
Information Age1 year
Measurement uncertainty15%
Measurement / projection unitProjection: UTM-WGS84
Input EO data– Very high resolution optical data: oPléiades, WorldView-2/3, GeoEye – Very high resolution SAR data (optional, as support for optical data): oCOSMO SkyMed, TerraSAR-X relative to the final date considered. 
Optional if a Defense Works Map (State Maps) is available for the final date.
Other input data– Map of the Defense Works (State Map) for the starting date – Map of the Defense Works (State Map) for the final date (optional)
Validation dataGround truth
FormatGIS-file: shapefile Metadata: compliant with ISO 19115 standards, and with the specifications required by the Inspire Directive by the relative Legislative Decree
Refresh rate2 days


Map of Change of Coastal Defense Works on the Gulf of Naples, obtained by comparing two Coastal Defense Works Maps related to two different dates