Bathymetric AUV shows promise for NOAA surveying

In a step towards greater efficiency in NOAA’s hydrographic surveying, experts onboard the NOAA Ship Ferdinand R. Hassler just wrapped up the first extended testing of Coast Survey’s new bathymetric mapping autonomous underwater vehicle (AUV). From Sept 3 to 13, the vehicle completed ten missions lasting up to 16 hours during day and night, while the ship continued with its assigned hydrographic surveys in the approaches to Portsmouth, New Hampshire.

This AUV is equipped with high resolution seabed mapping equipment similar to the ship’s, including a high accuracy positioning system and multibeam echosounder capable of producing seamless maps of the seafloor.

During this cruise, Coast Survey and Hassler personnel developed safe deployment and recovery procedures for the 675-pound, 13-foot vehicle, and they standardized mission programming and monitoring protocols to integrate the AUV with the shipboard survey operations. Future tests will refine these techniques, and focus on integrating the AUV’s seabed mapping data into the ship’s data processing workflow.

Coast Survey’s AUV team lead Rob Downs and Lt. Adam Reed prepare to initiate the AUV mission. Chief boatswain Brad Delinski, hydro senior survey technician David Moehl, and assistant boatswain Bruce Engert guide the AUV to the launch position, while field operations officer Lt. Madeleine Adler directs the operation.
Coast Survey’s AUV team lead Rob Downs and Lt. Adam Reed prepare to initiate the AUV mission. Chief boatswain Brad Delinski, hydro senior survey technician David Moehl, and able-bodied seaman Bruce Engert guide the AUV to the launch position, while field operations officer Lt. Madeleine Adler directs the operation. Photo credit: Lt. Olivia Hauser

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