1. UnitsSensors Dynamic Platform A North Straight High Speed Circuit South Straight High Speed Circuit Wet Handling Track ºC Temperature Ambient XXX ºC Asphalt Temperature XXX ºC Wet Asphalt Temperature X %Humidity RelativeXXX m/segWind SpeedXXXX ºWind DirectionXXXX HpaPressureX ltrRainX W/m²Solar RadiationX Data collection: Every 10 minutes, 1 hour and each day. SENSORS

2. SENSORS SPECIFICATIONS THE 108 TEMPERATURE SENSOR The 108 temperature probe uses a thermistor to measure temperature. Sensor: BetaTherm 100K6A Thermistor Temperature Measurement Range: -5ºC to +95ºC Survival Temperature Range: -55ºC to +l00ºC Thermistor Interchangeability Error*: <±0.16ºC or -5 to +95ºC Edlog Polynomial Linearization Error: <±t0.5ºC over -7 to +90ºC CRBasic Therm108 Linearisation error: <±t0.01ºC over -5 to +95ºC Bridge resistor Error (worst case)*: <±0.49ºC over -5 to +95ºC Time Constant in Air: <80s to 63% in air at 1 m/s

3. SENSORS SPECIFICATIONS LP02 PYRANOMETER SENSOR Response time for 95% response:18 s Zero offset (response fo 200 W/m² net thermal radiation): < 15 W/m² Zero offset (response to 5 k/h change in ambient temperature):<4 W/m² Non-stability:< 1% change per year Non-Linearity:< +/- 2.5% Directional response for beam radiation:Within +/-25 W/m² Spectral selectivity: +/- 5% (305 to 2000 nm) Temperature response (within an interval of 50ºC): Within 6% (-10 to +40ºC) Sensitivity: 10-40 µV/ Wm-² Expected voltage output: 0.1 to + 50 mV in natural sunlight Operating temperature: -40 to +80ºC Sensor resistance: Between 40 and 60 Ohms Range: 0-2000 W/m² Expected accuracy for daily sums: +/- 10%

4. SENSORS SPECIFICATIONS HMP45C Temperature and RH Probe Sensor: 1000 O PRT, IEC 751 I/3 Class B Temperature Measurement Range: -40ºC to +60ºC Temperature Output Signal range: 0.008 to 1.0 V Temperature Accuracy: ±0.4ºC Relative Humidity Sensor: HUMICAP@ 180 Relative Humidity Measurement Range: 0 to 100% non-condensing RH Output Signal Range: 0.008 to 1 VDC Accuracy at 20ºC: ±2% RH (0 to 90% Relative Humidity) ±3% RH (90 to 100% Relative Humidity) Temperature Dependence of Relative Humidity Measurement:±0.05% RH/ºC Typical Long Term Stability: Better than 1% RH per year Response Time (at 20ºC,90% response): 15 seconds with membrane filter

5. SENSORS SPECIFICATIONS C5100 Barometric Pressure Sensor Performance for "Standard" Range Option Measurement Range:600 mb to I100 mb (hPa) Operating Temperature Range:-40ºC to +60ºC (-40ºF to +140ºF) Storage Temperature Range :-60ºC to +120ºC (-76ºF to +248ºF) Proof Pressure:1500 mb Burst Pressure:2000 mb Humidity Range:non-condensing (up to 95% RH) Media Compatibility:non-conosive, non-condensing air or gas Resolution:0.01mb Total Accuracy:±0.5 mb @20ºC, ±1.0 mb @0ºC to +40ºC ±1.5 mb @ -20ºC to +50ºC, ±2.0 mb @ -40ºC to +60ºC Linearity:±0.4 mb Hysteresis:±0.05 mb Repeatabibity:±0.03 mb Long-term Stability:±0.1 mb per year

6. SENSORS SPECIFICATIONS WIND SPEED SPECIFICATIONS Range: 0 to 100m/d (224mph) Sensor: 18cm diameter 4-blade helicoid Pitch: 29.4 cm air passage per revolution Distance Constant: 2.7 m (8.9 ft.) for 63% recovery Threshold Sensitivity: 1.0 m/s (2.2 mph) Transducer: Centrally mounted stationary coil, 2K Ohm nominal DC resistance Transducer Output: AC sine wave signal induced by rotating magnet on propeller shaft. 80 mV p-p at 100 rpm. 8.0 V p-p at 10,000rpm. Output Frequency: 3 cycles per propeller revolution (0.098 m/s per Hz) WIND DIRECTIUN SPECIFICATION SUMMARY Range: 360º mechanical, 355º electrical (5º open) Sensor: Balanced vane, 38 cm (15 in) turning radius. Damping Ratio:0.3 Delay Distance:1.3 m (4.3 ft) for 50% recovery Threshold Sensitivity:1.1 m/s (2.5 mph) at 10º displacement Damped Natural Wavelength:7.4 m (24.3 ft) Undamped Natural Wavelength:7.2 m (23.6 ft) Transducer:Precision conductive plastic potentiometer, 10K ohm resistance (±20%), 0.25% linearity, life expectancy 50 million revolutions, rated 1 watt at 40ºC, 0 watts at 125ºC MODEL 05103-5 WIND MONITOR

7. SENSORS SPECIFICATIONS ARG100 RAINGAUGE The ARGI00 is a well-designed tipping bucket raingauge which combines durable construction with very reasonable cost. The gauge offers less resistance to airflow than most previous designs, which helps to reduce the sampling errors that inevitably occur during wind-driven rain. The gauge is manufactured for Campbell Scientific by environmental Measurements Ltd. (under licence from the Institute of Hydrology), and will provide many years of reliable operation when carefully sited and installed. The ARGl00 raingauge is constructed from UV- Resistant, vacuum-moulded plastic and consists of a base and an upper collecting funnel. The base splits into two parts, the inner section supporting the tipping-bucket mechanism and the outer providing protection and allowing the unit to be bolted firmly to a suitable mounting plinth or concrete slab. The tipping bucket arrangement is similar to most other gauges of this type; precipitation is collected by the funnel and is passed to one of the two buckets situated at either end of a short balance an. The balance ann tips when the first bucket is full, emptying this bucket and positioning the second under the funnel. The tipping process repeats indefinilety as long as rain continues to fall, with each tip corresponding to a fixed quantity of rainfall. At each tip, the moving balance arm forces a magnet to pass a reed switch, causing contact to be made for a few milliseconds. A two-core cable is used to connect the gauge to the datalogger where the switch closures are counted. The ARGl00 is adjusted at manufacture to tip once for each 0.2mm of rain (a sensitivity of 0.25mm/tip is optional). rating to simulate.