TWP/SMET/C2 - Lower Wind Sensor Direction Incorrect

Wind directions between lower and upper anemometers were displaced by approximately 45 
degrees when a new sensor was installed to replace the failing lower winde sensor.  The new 
sensor direction data incorrect.

Use upper wind data.

• Lower sensor, wind direction standard deviation(lo_dir_sd)
• Lower sensor, wind direction vector average(lo_dir_vec_avg)