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Specifications

Parameter Manufacturer Measurement Range Resolution (Reproducibility) Fundamental Accuracy
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) ±5°
Wind Direction Gill Windsonic 2-D Sonic Anemometer 360° (no dead band) ±3°
Barometric Pressure Vaisala Barocap PTB110 Electronic Barometer 50 to 110kPa 0.01kPa ±0.03kPa at 20°C
Photosynthetic Photon Flux Apogee Barocap PTB110 Quantum Sensor 0 to 2000 umo m-2s-1 0.5 umolm-2s-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
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 Reflectomete 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