Acoustic Zooplankton Fish Profiler (AZFP) combined with the Ice Profiling Sonar (IPS)

ASL Environmental Sciences is pleased to announce the combining of our Acoustic Zooplankton Fish Profiler (AZFP) with our Ice Profiling Sonar (IPS) to provide a comprehensive solution for ice thickness detection and water column profiling of fish, zooplankton, bubbles and suspended sediments in ice-infested waters. The AZFP6-ice is the next generation in high resolution, low power, continuous recording subsurface instruments that are capable of longterm deployments of a year or more. The AZFP6-ice would typically be used in an upward looking taut-line mooring as illustrated below but could easily be inverted to record the water column in a downward looking orientation. Built into the ice profiling sensor is a logarithmic detector which resolves both strong and weak acoustic targets. In practice, this means that the signal from strong reflections such as the water–air interface at close range doesn’t saturate, and weak targets such as the water–ice interface at long range are still measurable.