By Sam Mitchell
Once the ROV Jason begins collecting samples on the seafloor, we need a way to retrieve these samples as frequently as possible while Jason remains working underwater. This is where the elevator comes in.
The elevator is a four-by-four-foot platform with collecting boxes and crates bolted to it, a weight mechanism that enables the elevator to sink, a tracking beacon to determine its location, and an incompressible, buoyant top of bubble-rich, low-density glass to bring it back to the surface.
Photos today are of AUV Sentry being fished out of the ocean reluctantly and the data's downloading! What volcano surprises has she in store?! And the first rocks from the sea floor at Havre being dried out ready for closer examination.