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McWain Pond High-Resolution Temperature Monitoring

A. The water column of McWain Pond was weakly stratified when sensors were deployed in early May. Shallower waters gradually warmed throughout May before a short cool down in early June. Deep waters stayed cold but warmed slightly in late May.
B. Surface water temperature increased steadily from mid-June throughout July with peak temperature occurring on July 29 (28.1°C/ 82.5 °F). Deep waters stayed consistently stable and cold.
C. Surface waters began cooling slightly throughout August before reaching near peak temperatures again in early September. Deep waters remained cold but began to warm slightly.
D. Shallow waters began to cool and mix with waters from the middle depths. Deep waters were still cold but had started to warm slightly. The decrease in temperature difference between shallow and deep waters is a precursor to fall turnover.
E. Temperatures throughout the water column became uniform resulting in lake mixing in late October.

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