Bigelow Site (High-Elevation)

Field Areas     

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Bigelow site consist of the eddy covariance tower and zero order basin located south-east of the tower.

0.016 km2   Area

2532 - 2574 m   Elev

9.2 °C   Temp

609 mm   Precip

Parent Field Area:
Santa Catalina Mountains ▲

Mt. Bigelow eddy covariance tower.

Biome

coniferous forest

Land Use

forest land

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Setting & Research
Overview Maps
Dynamic Map
Data
Photos
Partner Organizations
  • Setting & Research

    The Bigelow site is located on a sky island, (a type of continental terrain consisting of a sequence of valleys and mountains isolated by the surrounding desert floor), in the Santa Catalina Mountains of the Coronado National Forest, NE of Tucson, Arizona (32o 25’ 00” N, 110o 43’ 31” W).  This is the second high-elevation site paired with the Marshall Gulch site which is situated 3.5 km WNW. The footprint of the tower encompasses a large footprint characterized by areas of topographically complex terrain.  The site represents a secondary-growth subalpine mixed conifer forest composed predominantly of Ponderosa pine (Pinus ponderosa), Douglas fir (Pseudotsuga menziesii), Chihuahua pine (Pinus leiophylla) and Mexican pine (Pinus ayacahuite), with occasional Southwestern white pine (Pinus strobiformis Engelmann) and White fir (Abies concolor).  Much of the woody regeneration in the sub-canopy is Douglas fir.  The zero order basin (ZOB) is located on east slope down from the tower. The area of the ZOB is 0.016 km2, elevation ranges from 2532 m to 2574 m, and slope ranges from 0.3 degree to 27.6 degrees.

  • Overview Maps

    Map Overlays
    Satellite
    Elevation
    Aspect
    Slope
    TWI
    EEMT
    Instrumentation
    • Bigelow tower satellite view.

    • Bigelow tower elevation map.

    • Bigelow tower aspect map.

    • Bigelow tower slope map.

    • Bigelow tower topographic wetness index map.

    • Bigelow tower environmental energy and mass transfer (EEMT) map.

    • Bigelow tower instrumentation map.

  • Dynamic Map

    To fully zoom into a small area, you may need to visit the "Map" button and uncheck "Terrain" view.

  • Data

    Bigelow Site - Soil Gas - CO2 and O2 (2014-2019)
    25 components    Bigelow Site (High-Elevation)    Climatology / Meteorology, Soil Science / Pedology, Biogeochemistry, Biology / Ecology    Jon Chorover; Greg Barron-Gafford; Rebecca Minor; Nate Abramson

    Bigelow Site - Soil Moisture, Soil Temperature, Electrical Conductivity, Water Potential (2014-2019)
    25 components    Bigelow Site (High-Elevation)    Hydrology, Soil Science / Pedology    Jon Chorover; Greg Barron-Gafford; Rebecca Minor; Nate Abramson

    Bigelow Site - Streamflow / Discharge (2015-2019)
    6 components    Bigelow Site (High-Elevation)    Hydrology    Peter Troch; Nate Abramson

    Bigelow Site - Soil Redox Potential (2015-2019)
    6 components    Bigelow Site (High-Elevation)    Soil Science / Pedology, Geochemistry / Mineralogy    Jon Chorover; Greg Barron-Gafford; Nate Abramson

    National - Soil Gas - CO2 and O2 (2014-2017)
    2 components    Bigelow Site (High-Elevation), Jemez 2013 Burned ZOB, Jemez Unburned Site, Calhoun CZO Research Area 1, Garner Run - Sandstone Forested, Northeastern Puerto Rico and the Luquillo Mountains    Biogeochemistry, Climatology / Meteorology, Soil Science / Pedology, Biology / Ecology    Brecheisen, Zachary; Brecheisen, Jon; Brecheisen, Jason; Silver, Whendee; Abramson, Nate; Abramson, Greg; Condon, Katherine E.; Cook, Charles W.; Hill, Lillian; Losleben, Mark; Minor, Rebecca; O'Connell, Christine; Richter, Daniel deB.; Durcik, Matej

  • Photos

    Catalina

    Santa Catalina Mountains Photos

  • Partner Organizations

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Ecosystems
  • Ecosystems

    • coniferous forest

    The site represents a secondary-growth subalpine mixed conifer forest composed predominantly of Ponderosa pine (Pinus ponderosa), Douglas fir (Pseudotsuga menziesii), Chihuahua pine (Pinus leiophylla) and Mexican pine (Pinus ayacahuite), with occasional Southwestern white pine (Pinus strobiformis Engelmann) and White fir (Abies concolor).  Much of the woody regeneration in the sub-canopy is Douglas fir.