North Temperate Lakes LTER: High Frequency Meteorological and Dissolved Oxygen Data - Sparkling Bog North Buoy 2008 - 2012

The instrumented buoy on Sparkling Bog North is equipped with a dissolved oxygen sensor,
a thermistor chain, and meteorological sensors that provide fundamental information on lake
thermal structure, weather conditions, and lake metabolism. Data are usually collected
either at 1 minute or 10 minute intervals. The D-Opto dissolved oxygen sensor is 0.5m from
the lake surface, thermistors are at the surface, at 0.25 m and at every .5 m from 0.5 m to
4.5 m, and meteorological sensors measure wind speed, wind direction, relative humidity, and
air temperature. The buoy is also equipped with a CO2 monitor and a YSI AutoProfiler that
measures several parameters including dissolved oxygen, water temperature, conductivity, pH,
ORP, turbulence and chlorophyll-a. After correcting for flux to or from the atmosphere and
vertical mixing within the water column, high frequency measurements of dissolved gases such
as carbon dioxide and oxygen can be used to estimate gross primary productivity,
respiration, and net ecosystem productivity, the basic components of whole lake metabolism.
Sampling Frequency: varies for instantaneous sample. Generally 1 minute or 10 minutes.
Number of sites: 1