Mt Bigelow Eddy Correlation Tower

Tower Height: 30 m

Location:
Coronado National Forest, Santa Catalina Range, Mt Bigelow Northeast of Tucson, AZ

Site Description:
Fir/Pine second growth subalpine forest
~12m

GPS Coordinate: Datum WGS84
Latitude: 32° 25' 00" N Longitude: 110° 43' 31.85" W

Station Elevation:2583 m above sea level

Initial Installation: 15-Apr-02

 

Equipment:

Eddy Covariance System:
Gill Windmaster Pro Ultrasonic Anemometer
Li-Cor 7500 Open Path CO2 and H2O Analyzer

Air Temperature and RH Sensor:
3- Model HMP45C temperature & relative humidity (produced by Vaisala) Sensor mounted inside an RM Young 12 plate Gill Radiation Shield.

(4.6 m, 11.1 m, and 25 m)

1- Gill Sonic temperature above canopy

Wind Speed and Direction Sensors:
3 - Model 3001-L Wind Monitor
1 - Gill Windmaster Pro Ultrasonic Anemometer

(4.6 m, 11.1 m, and 25 m)

Net Radiation Sensors:
1 - Kipp & Zonen 4-Way Radiometer
2 - Kipp & Zonen NR-Lite net radiometer (domeless)

Surface Temperature Sensor:
1 - Model Precision Infrared Thermometer (produced by Apogee) mounted at an angle using a movable camera mount.

Canopy Temperature Sensor:
1 - Model Precision Infrared Thermometer (produced by Apogee) mounted at an anlge using a movable camera mount.

Snow Depth Sensor:
1 - NRCS SNOTEL type snow pillow and pressure transducers

Soil Heat Flux Plates:
2 - REBS soil heat flux plates

TDR Probe Used:
6 - Model CS615 Water Content Reflectometers (Produced by Campbell Scientific)

Surface/ Soil Thermocouple Array:
2 - Custom Soil Thermocouple probe (produced by NOAA Lab)
Sensor array has 7 probes. At Surface, 2,4,8,16,32,64 cm b.g.s.

Barometric Pressure:
1 Vaisala PTB101B Barometric Pressure Sensor

Tree Bole & Xylem Temperature:
6 - 2 Sets of thermocouple in the heartwood and xylem

Dataloggers Used:
1 - CR23X (produced by Campbell Scientific)
S/N: Standard operating range: -25 to +50O.
C housed inside a white fiberglass-reinforced enclosure.

1- 10X (Campbell Scientific).

Data Acquisition, Transmission / Storage:
Linux based pc data acquisition system
Telephone line/modem data transfer
10 hertz raw data & 30 min averaged fluxes

Multiplexers Used:
1 - Model AM25T (produced by Campbell Scientific)
25 Channel multiplexer for thermocouple

Power Source:
Currently Solar panels.

Tower Used:
1 - 30 m stairway scaffolding

 

 

 

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