The Endurance Array team at Oregon State University (OSU) achieved a first in early August. They succeeded in recovering a Coastal Surface Piercing Profiler (CSPP) and its anchor from the Oregon Shelf site with an ROV customized for this endeavor.

The team boarded the 54-foot R/V Elakha, which is owned and operated by Oregon State University on Thursday 5 August, to implement a recovery scheme developed by OSU-OOI technicians Alex Wick and Ian Black.

Wick and Black also created and configured the line pack and other materials needed by the ROV, and led operations on deck.  Jeremy Fox, captain of the R/V Oceanus, operated the ROV. The goal was to retrieve the orphaned CSPP from the site.

“This successful mission demonstrates the creativity and determination of the Endurance Array team to retrieve equipment from the seafloor,” said Jonathan Fram, project manager for the Endurance Team Array at OSU.  “When we lose a piece of equipment, we do everything in our power to retrieve it not only because of the expense of the equipment and the scientific value of data it contains, but because we are required to recover what we deploy. OSU-OOI has recovered orphaned equipment with ROVs in the past, but the recovery scheme used here was much more effective and efficient.”

The mission is shown in the pictures below:

Elakha
OSU’s 54″ R/V Elakha, the Chinook trading language word for sea otter, is powered by a single, 600-horsepower diesel engine with a range of about 575 miles. OOI uses it for day trips from Newport to service Oregon Line moorings and gliders.Credit: OSU, College of Earth, Ocean, and Atmospheric Sciences
ROV-with-recovery-line
ROV with recovery line pack underneath. Credit: Alex Wick, OSU
ROV underneath
The ROV took this picture of the upside-down anchor. The team initially wasn’t able initially to recover the anchor because the white recovery floats were on bottom, so they didn’t float up when they were released. Here, the ROV arm is holding a hook with a blue line attached to it. Credit: Jeremy Fox, OSU
Anchor attached
This is a close-up of the anchor with the recovery line successfully attached. With the anchor secured, the team recovered the ROV, detached the blue line from the line pack bag, and then winched up the anchor and attached profiler. Credit: Jeremy Fox, OSU
Ian at stern
Ian Black sits on the deck of the R/V Elakha after a successful mission to recover an orphaned CSPP and anchor. Credit: Jeremy Fox, OSU