Recovery of 2001 Mooring

Photo Credit: University of Washington

Photographers: Paul Aguilar and Jim Johnson

 



Aagaard operates the hydraulic winch as Ohmart coordinates with the divers below during the flotation recovery.
(Johnson)

 



Ohmart checking instrument package aligned beneath the hole.
(Johnson)

 



The mooring line has been released from the anchor by remote control. The steel float, radio beacon, and upward looking sonar (ULS) are nearing the bottom of the ice.
(Aguilar)

 



When the beacon reaches a particular shallow depth it activates. This tells the team where the top of the mooring is under the ice.
(Aguilar)

 

 



The top float and upward looking sonar (ULS) device breaks the surface after the diver repositions it from under the ice.
(Johnson)

 



The hydraulic power pack generates energy for the capstan to pull up the mooring line. Aagaard and Ohmart have just hauled up a current meter.
(Johnson)

 



Johnson detaches the acoustic doppler current profiler (ADCP) from the line and is about to place it on the ice.