Water column sampling
ROPOS recently ran a series of dives to swap out the OOI deep profiler vehicles after a year in the water. A specialized ROV frame places the new vehicle on the cable and removes the old one to bring it back to UW for cleaning and refurbishment.
![](https://www2.whoi.edu/site/ooi-expedition/wp-content/uploads/sites/143/2022/08/RCA-ROPOS-1-FbHqUMoVEAEh-9N.jpeg)
Credit: NSF-OOI/UW/CSSF/V22.
![](https://www2.whoi.edu/site/ooi-expedition/wp-content/uploads/sites/143/2022/08/RCA-ROPOS-2-FbHrM7NUYAE-rNI-1024x576.jpeg)
Credit: NSF-OOI/UW/CSSF/V22.