The POGO (Profiling OceanoGraphic Observatory--formerly known as 'VPS') is a mobile instrument platform. It consists of a seafloor base unit and a tethered float. A winch on the base unit raises and lowers the float, which bristles with instrumentation for monitoring:
POGO is designed for installation at a depth of 396m. Cable spooled on the platform is long enough for the float to extend to the surface, allowing scientists to capture data throughout the water column.
After deployment in August 2009, a significant problem developed: the instrument float could be extended upward, but it could not be retracted back down to the base platform. Our only recourse was to recover POGO and bring it back to Victoria for repairs. This was done during the May 2010 installation & maintenance cruise.
POGO was re-deployed for several weeks in September 2010, but a connector problem rendered it inoperable. It was then recovered by the R/V Thomas G Thompson in late September 2010. Then, in May 2012, POGO was successfully deployed and began regular data collection operations there.
POGO's base platform has two cameras and some other sensors associated with the mechanical assembly, but all scientific sensors are affixed to the profiler float unit.
Connected to Barkley Slope/Canyon node on 28 May 2012 from the R/V Thompson.
Click the images to see enlarged pictures with full captions.
Not currently installed.Wally II