Maritime Mapping.
It’s relevance has been discussed above with some dismissing its importance for SAR operations. These are commonly used in UKSAR and have done since the beginning of the current contract. When conducting maritime and littoral let downs either IMC or on NVG, the front end are using aeronautical charts and the back end are following up with a combination of aeronautical and maritime digital mapping. Contacts on radar/FLIR are cross checked with the charts in order to identify buoys and low laying terrain.
LZ