Willow Creek tower observations(upland hardwood - operational)

Fluxes+CO2+meteorology

CO2+PAR+T/RH

30m

24m

16m

10m

Fluxes = CO2, H20, Tv,

momentum

Meteorology = dewpoint (chilled-

mirror), temperature (platinum

thermistor), barometer,

4-component radiation

(Kipp and Zonen),

direct/diffuse PAR (shadowband)

On the ground:

Precipitation (tipping bucket)

Soil T/moisture profile

Soil heat flux plate

Tree bole temperatures (N&S)

Willow Creek tower observations (upland hardwood - operational)