Last spring I accompanied David Hodsdon and Jack Holland on one of their regular monitoring sessions. Here are some pictures I took showing them going through their routine.
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- David and Jack arrive on site and drop anchor. After doing this for years, they’ve gotten pretty good anchoring (close to) the same spot.
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- Measuring the water depth to confirm their location.
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- Jack doing a secchi disk reading.
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- David’s turn with the secchi disk.
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- David using the YSI Pro20 digital dissolved oxygen meter.
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- A close up of the YSI Pro 20 digital dissolved oxygen meter display.
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- Jack doing the data recording.
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- David measures the wind speed, direction, and temperature.
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- 37 years of secchi disk readings