First flux tower erected at the Calhoun CZO

The flux tower installed August 17, 2016 in the young pine stand at the Calhoun Long Term Soil Experiment site.

17 Aug 2016

Image: The flux tower installed August 17, 2016 in the young pine stand at the Calhoun Long Term Soil Experiment site. [Click image to enlarge]

On August 17, 2016 a crew from Georgia Tech led by graduate student Yao Tang and professor Jingfeng Wang, with a little help from the folks at Duke, installed a heavily instrumented 9-meter (30-foot) flux tower in the young pine stand at the long-term soil experiment site.

Instruments installed on the Campbell UT 30 tower include a LI-7500A (for CO2/H2O measurements), CS215/L100PT (T and RH), CNR4 net radiometer, and an RM Young Model 81000 Ultrasonic Anemometer (wind speed). There's also an SI-111 at 1m (infrared thermometer for Ts), a TB4 rain gauge at ground level, and just below the surface a CS616 (soil moisture), 107L (soil T), and Hukseflux HFP01 (soil heat flux). The array is powered by a number of solar panels attached to deep-cycle batteries.

Earlier in the same plot the Duke crew installed 0.5, 1.5, 3, and 5-m deep gas wells and a 5-m deep hydroprobe well.

Followup visits on August 25 and 31 confirmed that all the installed sensors seem to work well and are collecting data!


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