Certainly in the UK and, in my experience, around the world, military exercised are programmed, confined to specific areas and certain emitters such as sonar ar

Certainly in the UK and, in my experience, around the world, military exercised are programmed, confined to specific areas and certain emitters such as sonar are carefully logged. That said, we know little about how currents and water bodies move so I'm sure these researchers have something more concrete.