| Wind Speed |
R.M. Young Wind Sentry 03002 Cup Anemometer |
0 to 50 ms-1 (0 to 112mph) |
0.2 ms-1 |
±0.5ms-1 (±1.1mph) |
| Wind Speed (base station and rooftop) |
Gill Windsonic 2-D Sonic Anemometer |
0 to 60 ms-1 |
0.01ms-1 |
±2% of reading |
| Wind Direction |
R.M. Young Wind Sentry 03002 Wind Vane |
360° mechanical 352° electrical (8° dead band) |
1° |
±5° |
| Wind Direction |
Gill Windsonic 2-D Sonic Anemometer |
360° (no dead band) |
1° |
±3° |
| Barometric Pressure |
Vaisala Barocap PTB110 Electronic Barometer |
50 to 110kPa |
0.01kPa |
±0.03kPa at 20°C |
| Photosynthetic Photon Flux |
Apogee SQ-110 Quantum Sensor |
0 to 2000 µmol m-2 s-1 |
0.5 µmol m-2 s-1 |
±5% |
| Net Radiation (shortwave & longwave upward & downward radiation flux) |
Huskeflux Model NR01 4-way Net Radiometer |
0 to 2000 W m-2 |
0.1 W m-2 |
±3% |
| Shortwave (Solar) Radiation (Base Station) |
Apogee Model SP-110 Silicon Pyranometer |
0 to 1750 W m-2 |
0.1 W m-2 |
±5% |
| Shortwave (Solar) Radiation (rooftop) |
Kipp & Zonnen Model CM 21 Black Body Pyranometer |
0 to 1400 W m-2 |
|
|
| Longwave (Solar) Radiation (rooftop) |
Kipp & Zonnen Model CG 1 Pyrgeometer |
|
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|
| Surface Temperature |
Apogee Model SI-100 Infrared Radiometer |
-40° to +60° C |
0.01° C |
±0.2° C from -10° to 65° C |
| Precipitation (base station) |
Texas Electronics Model TE525MM Tipping Bucket Rain Gauge |
|
1 tip (0.1 mm) |
±1% up to 10 mm h-1 |
| Precipitation (rooftop) |
Met One Model 385 Heated Tipping Bucket Rain Gauge |
|
1 tip (0.1 mm) |
±1% up to 127 mm h-1 |
| Air Temperature |
R.M. Young Naturally Ventilated Gill-type Radiation Shield |
-40° to +60° C |
0.01° C |
1° C |
| Air Temperature |
Apogee TS-100 Fan Ventilated Radiation Shield |
-40° to +60° C |
0.01° C |
0.1° C |
| Atmospheric CO2 |
Vaisala Carbocap GMP 343 CO2 Transmitter |
0 to 1000 ppm |
1 ppm |
±3 ppm CO2 +1% of reading |
| Volumetric Soil Water Content |
Campbell Scientific Model CS655 Water Content Reflectometer |
0 to 50% VWC |
0.1% VWC |
±2.5% VWC |
| Relative Humidity |
Vaisala Model HMP 110 |
0 to 100% RH |
0.01% RH |
±1.7% (0 to 90% RH) ±2.5 % (90 to 100% RH) |
| Surface Wetness |
Decagon Dielectric Leaf Wetness & Frost Sensor |
dry to wet |
1 drop of water |
1 drop of water |
| Datalogger |
Campbell Scientific Model CR3000 |
0 to 5 volts DC |
0.33 microvolts |
|
| Multiplexer |
Campbell Scientific Model AM16/32 |
16 differential channels |
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