The site was established in summer 2014 and is part of a eddy covariance flux tower network funded by DOE and USDA. The Willamette Grass site is also part of the AmeriFlux network (US-Wgr). Meteorological variables such as temperature, humidity, solar irradiance and wind are measured at this site. Turbulent fluxes of water vapor, carbon dioxide and heat are observed and stored as 30 minute averages. At this site the crop changes periodically and rye grass and fescue is grown alternately at this site located in Oregon's Willamette Valley with its relatively mild climate. The grass site is also part of the PhenoCam network operated by Harvard University.
Site removed: September 2016
Meteorological instrumentation: | ||
|---|---|---|
Sensor | Variables | Height [m a.g.l.] |
PT 100 probe | Air temperature | 2.0 |
DELTA-T BF5 | Incoming and diffuse PAR | 2.5 |
Kipp & Zonen CNR1 | SWin, SWout, LWin, LWout | 2.5 |
Campbell CSAT3 | 3D wind and sonic temperature | 2.5 |
LIcor LI 7500 | CO2, Water vapor | 2.5 |
Vaisala PTB101b | Ambient air pressure | ground level |
Close-up of the eddy covariance and meteorological equipment
Dr. Andres Schmidt and Dr. Hyojung Kwon explain eddy covariance to OSU College of Forestry students