33m
3m - 8m
Shore
Advanced
33m
3m - 8m
Shore
Advanced
Other, Cave, Inland
Shore
33m
3m – 8m
Advanced
21% – 33%
O213% at 31m / 34%
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Remote Silt Disturbance — Silt can be disturbed metres away from the source.
Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.
High Cognitive Load Navigation — Complex passages increase mental workload even on a line.
Thermocline Buoyancy Shift — Sharp thermoclines can cause sudden buoyancy changes.
Instant Visibility Collapse — Sediment disturbance can eliminate visibility immediately.
Late Detection of Structures — Submerged structures may only appear at very close range.