Through the ice, wire-walking profilers (McLane Labs Ice Tethered Profilers [ITPs]) were deployed in both lobs of Lake Bonney. Attached to the ITPs were sensors for conductivity, temperature, dissolved oxygen, and pressure (Seabird model 41CP CTD endcaps). The ITPs were programmed to profile once daily around regional solar noon. A profile consisted of one downward and one upward movement to the furthest reach of the profilers possible movement, or the bottom of the lake or bottom of the ice, whichever limit came first. During the profiles, conductivity, temperature, salinity and dissolved oxygen readings were recorded every 2 seconds. To convert the raw dissolved oxygen readings (recorded in sensor output units, hertz), manufacturer calibration coefficients and fit equations were used.