NSA/TWR/C1 - 40m level data incorrect

A power distribution problem required us to turn off the 50V DC power to the 40m level.  
This shutdown the T/RH probe and the heating of the ultrasonic sensor.  The wind data is 
useful at times when there is no icing present.  This DQR is a follow on to D091201.2 that 
was closed when the 20m level T/RH probe was replaced.

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• Air temperature, standard deviation(temp_std)
• Relative humidity observed by the Raman lidar(rh_mean)
• Temperature mean(temp_mean)
• Temperature and relative humidity sensor error code(trh_err_code)
• Dew point standard deviation(dew_point_std)
• Vapor pressure standard deviation(vapor_pressure_std)
• Wind speed arithmetic mean(wspd_arith_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Dew point mean, calculated(dew_point_mean)
• Standard deviation in logger enclosure relative humidity(rh_std)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)