Characteristics of the Near-Ground Typhoon Morakot

Table 1

Specific parameters of the WJ-3 anemometers.

Project	Value
Measurement range of wind speed	0∼60 m/s
Measurement accuracy of wind speed	±0.4 m/s
Start-up wind speed	≤0.8 m/s
Resolution of wind speed	0.1 m/s
Measurement range of wind direction	0∼359.9°
Measurement accuracy of wind direction	±2°
Resolution of wind direction	1°
Input voltage	AC220V ± 10% (50 Hz)
Transmission mode	RS485
Transmission distance	1kM
Displayed contents	Instantaneous wind speed/direction, 2-minute mean wind speed/direction, 10-minute mean wind speed/direction