Airgun Adjustments

We got to watch as the airguns were brought on board the other day to change the configuration. As we switch between wide-angle OBS surveys for deep crustal structure and high-resolution MCS for shallow surveys, we have to change the position of the airguns and hydrophone in the water.

Here the head buoy emerges out of the water and into the hangar on board.

You can see 2 of the airguns hanging down from the float string here. They were adjusting the depth at which the airguns hang below the water.

Josh, one of the airgun techs, adjusts the airgun height at tail of the array.

Here’s a panorama of the whole float string in the hangar before it is redeployed.