Appalachians & Cumberland Plateau
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NEON Sampling Boundaries
Tower Airshed Boundary
This map depicts the spatial layout of this field site. Please note that some locations may have moved over time due to logistics, safety and science requirements.
This map was updated on October 26, 2018
Construction Status for this Site
Oak Ridge National Laboratory (ORNL) is located at the U.S. Department of Energy's Oak Ridge Reservation in Roane County, Tennessee. The ORNL reservation is situated within the borders of five parallel ridges and valleys to the north of the Clinch River that are part of the Ridge-and-Valley Appalachians physiographic province (Environmental Sciences Division n.d.). The NEON tower site and Walker Branch aquatic site at ORNL are located within the Walker Branch Watershed, a 100 ha area that has served as the site for long-term environmental studies by the Environmental Sciences Division at ORNL, NOAA, and many visiting university researchers.
Total data products planned for this site: 119
Site Host & Access Site Host:
U.S. Department of Energy
Is additional non-NEON research allowed at this site?:
No additional research is allowed in this area at this time. The site hosts have only permitted NEON research activities and are not open to additional research.
Site Characteristics Latitude/Longitude:35.96412, -84.2826 Elevation:334 m Mean Annual Temperature:15C/59F Mean Annual Precipitation:1222 mm Dominant NLCD Classes:
Upper Knox group, dolostone, and limestone. Ordovician and Cambrian.
USGS HUC: h06010207
Dominant Phenology Species:
Quercus montana, Liriodendron tulipfera, Cornus florida
Mean Canopy Height:
The mean canopy height is 28'.
Fine, kaolinitic, thermic. Typic Paleudults.
The dominant wind direction is west-northwest.
Data Collection Types
Airborne Remote Sensing Surveys
Remote sensing surveys of this field site collect lidar, spectrometer and high-resolution RGB camera data.
The flux/meteorological tower at this site is 127’ with 6 measurement levels. The tower top extends above the vegetation canopy to allow sensors mounted at the top and along the tower to capture the full profile of atmospheric conditions from the top of the vegetation canopy to the ground. The tower collects physical and chemical properties of atmosphere-related processes, such as humidity, wind, and net ecosystem gas exchange. Precipitation data are collected by a tipping bucket at the top of the tower, a Double Fence Intercomparison Reference (DFIR) near the tower, and a series of throughfalls located in the soil array.
This site has one phenocam on the top of the flux tower and one near the bottom of the tower.
Soil Sensor Measurements
This site has five soil plots placed in an array within the airshed of the flux tower. The following measurements may be collected at the soil surface in each soil plot:
Photosynthetically Active Radiation (PAR) at soil surface
Soil heat flux
The following measurements are collected at multiple depths in each soil plot:
Field ecologists collect the following types of observational data at this site:
Other Domain 07 Field Sites
Core Aquatic | Wadeable Stream | Tennessee
Distance: 0 mi.
Relocatable Aquatic | Wadeable Stream | Tennessee
Distance: 48 mi.
Relocatable Terrestrial | Tennessee
Distance: 48 mi.
Relocatable Terrestrial | Virginia
Distance: 230 mi.
Colocated Research Organizations
DOE - Oak Ridge National Laboratory
Field Operations Office
154 Fairbanks Road, Fairbanks Plaza
Oak Ridge, TN 37830