Besides of the deployment and the recovery of our instruments the airgun watch while we´re shooting is one of our main duties on board.

And this is how it works:

General:
– check for marine mammals: if you see a mammal, please inform the bridge!
– check the streamer depth
– check the trigger interval
– check the airgun trigger

Every 20 minutes:
– check the airgun pressure
– visual check of the airgun floats
– are all lines clear?
– visual check of the streamer cable
– write log book