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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 January 11, 2019
Construction Status for this Site
The field site is located south of the rapidly developing Salt Lake City area, also near Provo and Logan, anchoring this arid urban-rural megatransect.
Site history & management
The Onaqui-Benmore area has been grazed by domestic livestock since settlement. By the 1980's, the U.S. Forest Service instituted a light to moderate fall and winter grazing regime that continues today.Fire has always been a component of sagebrush steppe, one of the dominant vegetation types in the area. However, the invasions of exotic annual vegetation, especially Bromus tectorum, also known as drooping brome or cheatgrass, have dramatically shortened fire return intervals. The invasion-fire feedback has resulted in the loss of native perennial species from extensive areas of the region. The restoration of sagebrush at Onaqui-Ault after the cheatgrass invasion and woodland expansion creates an opportunity to collect data on the changes related to invasive or non-invasive species advancement, as well as the dynamics of rodents and hantavirus.
Total data products planned for this site: 114
Site Host & Access Site Host:
Bureau of Land Management, U.S. Forest Service
Is additional non-NEON research allowed at this site?:
Yes, non-NEON research activities are allowed in this area. Researchers must obtain their own permits with the site host(s).
Site Characteristics Latitude/Longitude:40.17759, -112.45244 Elevation:1685 m Mean Annual Temperature:9C/48.2F Mean Annual Precipitation:388 mm Dominant NLCD Classes:
Alluvium and colluvium. Quaternary.
USGS HUC: h16020304
Dominant Phenology Species:
Artemisia tridentata ssp. tridentata, Ceratocephala testiculata, Bromus tectorum
Mean Canopy Height:
The mean canopy height is 1.2 m.
Fine, loamy, mixed, superactive, mesic. Xeric Haplocalcids.
The dominant wind direction is southwest.
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 26’ with 4 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 may be collected by a tipping bucket at the top of the tower and a Double Fence Intercomparison Reference (DFIR) near the tower.
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 15 Field Sites
Core Aquatic | Wadeable Stream | Utah
Distance: 54 mi.
Field Operations Office
2992 South Main Street
South Salt Lake City, UT 84115