MRESS Specifications
The following instruments are installed on MRESS_001:
- Vaisala 50Y Temperature/Humidity Probe
- Gill Windsonic4 Sonic Anemometer
- Garmin HVS-16 GPS Receiver
- Vaisala PTB101B Barometer
- Climatronics 100093-3 Dual-Element Thermistor (NOT ACTIVE YET)
The system has a sampling frequency of 1Hz, or 1 sample every second. Additional processing is done server-side to calculate the WMO-Standard 3-second gust and 1 minute-average wind data. Note: The WMO suggested averaging period for a wind measurement is 10 minutes, but that is not applicable (temporally or spatially) for Storm/Micro-Scale phenomena.
| Temperature (Fast-Response) |
|---|
| Range: | -30°C to +50°C |
| Accuracy: | ±0.15°C |
| Linearity: | ±0.16°C |
| Time Constant: | 0.6 sec |
| Pressure |
|---|
| Range: | 600 to 1100 mb |
| Accuracy: | ±0.5 mb @ +20°C |
| Temperature Range: | -40° to 60°C |
| Wind Speed |
|---|
| Range: | 0 to 60 m/s (0 to 134 mph) |
| Accuracy: | ±2% of Reading (±0.5 m/s @ 25 m/s)
or (±1.1 mph @ 56 mph) |
| Output Resolution: | 0.01 m/s (0.02 mph) |
| Wind Direction |
|---|
| Range: | 0° to 360° |
| Accuracy: | ±3° |
| Output Resolution: | 1° |
| Vehicle Speed (GPS) |
|---|
| Range: | 0 to 999 kts (0 to 1150 mph) |
| Accuracy: | ±0.1 kts (±0.12 mph) |
| Output Resolution: | 0.01 kts (0.012 mph) |
| Vehicle Direction (GPS) |
|---|
| Range: | 0° to 360° |
| Accuracy: | ±0.3° on 20 s continuous-stretch |
| Output Resolution: | 0.1° |
| Temperature (Slow-Response) |
|---|
| Range: | -10C to +60C |
| Accuracy: | ±0.6C (see graph) |
From Vaisala 50Y Product Manual.
| Relative Humidity |
|---|
| Range: | 0% to 100% |
| Accuracy: | Around ±3% (see graph) |
From Vaisala 50Y Product Manual.