Table 1 Existing GIS layers from ESA, LGS and DPC

Objects

Data creation dates

Pleiades-1A image

June 14, 2019 (0.5 m resolution)

Digital Elevation Model (DEM), Digital Surface Model (DSM), Digital Terrain Model (DTM)

DEM: September 2017; DSM: February 2014;

DTM: January 2014

Area impacted by the 2002 tsunami, Operational centres, Sirens, 400 m contour line, Helicopter landing pad, Waiting areas, Streets, Evacuation routes

Area impacted by the 2002 tsunami: August 2010; Operational centres: June 2014; Sirens: February 2003; 400 m contour line: July 2006; Helicopter landing pads: February 2014; Waiting areas: April 2010;

Streets: July 2010; Evacuation routes: July 2010