SGP/EBBR/E8 - Wind Direction Incorrect

The wind direction sensor output read 135 degrees for much of the period, 
an indication of sensor failure.  Energy Balance fluxes are not affected by
the problem.  The values below were incorrect when wind direction was 135:

5 minute:  res_ws, wind_d, sigma_wd
15 minute: mv_wind_d
30 minute: res_ws, wind_d, sigma_wd

• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)

• Wind direction vector mean (mV)(wdir_vec_mean_mv)

• Wind direction vector mean(wdir_vec_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Wind speed vector mean(wspd_vec_mean)