What specific seabed characteristic must be meticulously mapped during a cable route survey to prevent long-term cable damage from abrasion?

The specific seabed characteristic that must be meticulously mapped during a cable route survey to prevent long-term cable damage from abrasion is the presence, distribution, and characteristics of rock outcrops and mobile seabed features, particularly areas with exposed bedrock and the presence of sand waves or migrating gravel beds. Subsea cables connecting tidal energy plants to the grid are susceptible to abrasion, which is the wearing away of the cable's outer layers due to friction against the seabed. Rock outcrops and exposed bedrock present hard, sharp surfaces that can cause significant abrasion damage over t....