Assessing the risk of when, where and how severe a weather-based disaster will be

This service delivers coastline, and, where relevant intertidal maps. The coastline method works by identifying land-water boundaries in time series of SAR data and high-resolution optical images from Earth observation (EO) data. Tidal corrections are applied in order to establish locations for high and low water shorelines, and the location of mean sea level. Tidal corrections are based on available tidal models, supplemented with available tide gauge data and sea level measurements from coastal altimetry. Multiple coastline maps produced can be used to identify locations of shoreline change due to coastal erosion or sediment deposition that can can cause flooding, rock falls, landslides, loss of land and damage to infrastructure, obstruct port inlets, and reduce maritime safety. The maps can, therefore, be used to monitor regions that are known to suffer rapid shoreline change, identify new locations where shoreline changes occur as well as inform planning of coastal defences.