Comment by Arnt
2 days ago
Here's a map showing radar coverage: https://www.researchgate.net/publication/369794025/figure/fi...
There are more radars there, that's not everything. But until recently, what reason was there to pay for complete coverage?
There's also satellite footage available from commercial companies. Ships can only move so fast so even hourly footage narrows down very quickly.
If there wasn't already a company offering this as a geo-feed I'd be very surprised.