The Ice Tethered Profiler (ITP) is an autonomous time-series instrument that vertically profiles the water column under the ice. The ITP collects in situmeasurements of conductivity, temperature, and depth. Data is automatically transmitted in near real time via inductive modem.
The McLane Moored Profiler (MMP) autonomously profiles the water column in a time-series along a fixed tether.
Profiling depth, time intervals and pressure stops are user-defined, and profiling patterns can span specific seasons or timeframes. An optional underwater inductive modem provides real-time communication between the MMP and a surface buoy or seabed node.
We offer two MMP models: the standard and extended version. The extended MMP provides 50% more battery capacity and is 12.7cm longer than the standard MMP.
The Prawler (PRofiling crAWLER) is a low-cost, wave-actuated vehicle that moves along the mooring wire, collecting data from the surface to 500m of the water column. Data can include conductivity, temperature, depth (CTD), optical backscatter, and dissolved oxygen.
Wave motion and special ratcheting clamps move the vehicle up the wire. The Prawler free-falls to the bottom of the user programmed profiling range, collecting data measurements. Wave oscillation powers vehicle movement. Sensors are powered by primary lithium batteries.
