Lake Sunapee Instrumented Buoy: High Frequency Water Temperature and Dissolved Oxygen Data - 2007-2020

The Lake Sunapee instrumented buoy is equipped with a thermistor chain comprised of ten integrated Nexsens TS210 units (July 2017 - current) and two Ponsel Digisens Optical probes suspended at approximately 1.5 meters and 10.5 meters depth. Note that the below-surface depth of the thermistors have fluctuated throughout the years.

Lake Sunapee buoy is located near Loon Island Lighthouse during the summer months and in the Lake Sunapee Harbor during the winter months (2010-current) except for the first few years of data collection (2007-2010), when the buoy was located near Loon Island year-round. The buoy was moved to the harbor during the winters after suffering ice damage, sensor failures, and general data transmission errors during the winter of 2009-2010.

In two instances, HOBO units were deployed at the buoy's location when sensors failed mid-season (thermistor line mid-2015, HOBO temp/lumen pendants deployed in place) or if sensors were unavailable for the season (2018, a HOBO U26 dissolved oxygen sensor was deployed when DO probes were not functioning).

All datasets have been QAQC'd to remove obviously errant readings, highly suspicious readings, and artifacts of buoy maintenance.