Onset Water Temperature Pro v2 loggers were used in each of the five lakes. Loggers were attached to a cable which had an anchor (sandbag) and float. One logger was always near the float and one near the sandbag to obtain the upper and lower measurements in the water column. Replicate measurements were obtained, with one thermistor string on the north side of the lake, and one on the south side.
Deployed on a Zodiac inflatable boat and outboard motor, a Lowrance/Eagle SeaCharter502cDF iGPS Sonar Unit obtained high frequency water depth soundings in August 2008. These sonar tracks are plotted on satellite imagery for all five lakes.