Wideband
High-resolution Acoustic Profiling System
(WHAPS)
This system was originally
developed for Tim Cowles at Oregon State University for use
in his thin layers work. He needed a sensor that would
rapidly estimate zooplankton abundance and output a value
that could be logged with all of the other sensor data he
was taking on a slow-drop package he deployed at sea. We
came up with WHAPS as an answer. Rather than describe the
system here, take a look on the download page at the paper
we gave at the ASA meeting in 1996.
This WHAPS was lost at sea on it's maiden voyage. This is
not as uncommon as one might think. When I first arrived at
OSU in 1975, the talk around the school was of an expensive
gizmo that had come off the wire on it's first deployment
and was now lost off Newport. Can't remember if it ever
came back. They usually don't.
I re-visited WHAPS for the Monterey Bay work of 2005-6.
I'll put some information on these on this site in the near
future. Probably.