SGP/RL/C1 - Malfunction in WFOV data acquisition

A malfunction in the data acquisition hardware resulted in corrupted data in the 
wide-field-of-view (WFOV) nitrogen, water vapor and elastic channels. The problem is so serious as 
to yield these signals useless during the period covered by this DQR.

Do not use any data products derived from the WFOV raw signals during the period covered 
by this DQR. This includes water vapor mixing ratio, aerosol scattering ratio, and aerosol 
extinction. 

The narrow-field-of-view (NFOV)channels are unaffected by this problem. So data products 
derived from only the NFOV channel should be okay. These include the 'high' channel 
signals from the merge VAP, depolarization and temperature.

Do not use data

• Number of photons counted in the low water vapor channel(water_counts_low)
• Glue coefficient (slope) for low nitrogen channel(nitrogen_counts_low_glue_coef_slope)
• Fit parameters for the low nitrogen channel(parameters_nitrogen_low)
• Fit parameters for the low water vapor channel(parameters_water_low)
• Glue coefficient (offset) for low elastic channel(elastic_counts_low_glue_coef_offset)
• Glue coefficient (offset) for low nitrogen channel(nitrogen_counts_low_glue_coef_offset)
• Glue coefficient (offset) for low water vapor channel(water_counts_low_glue_coef_offset)
• Fit parameters for the low elastic channel(parameters_elastic_low)
• Number of photons counted in the low nitrogen channel(nitrogen_counts_low)
• Glue coefficient (slope) for low water vapor channel(water_counts_low_glue_coef_slope)
• Glue coefficient (slope) for low elastic channel(elastic_counts_low_glue_coef_slope)
• Number of photons counted in the low elastic (aerosol) channel(elastic_counts_low)

• Number of photons counted in the low water vapor channel(water_counts_low)
• Number of photons counted in the low nitrogen channel(nitrogen_counts_low)
• Number of photons counted in the low elastic (aerosol) channel(elastic_counts_low)

• Aerosol optical depth uncertainty(aod_err)
• Aerosol backscatter coefficient at 355 nm(bscat)
• Water vapor mixing ratio from the Raman lidar near 60 m(rl_w_60m)
• Aerosol extinction coefficient(ext)
• Maximum altitude used while computing AOD from the extinction profile(aod_max_height)
• Median vertical velocity(w)
• Precipitable water vapor observed by the Raman lidar(pwv_rl)
• Average cloud base height used in the retrieval(cbh)
• Random error in the aerosol extinction coefficient profile(ext_err)
• Suggested maximum altitude to use the water vapor data from the Raman lidar(w_max_height)
• Cloud mask from depolarization VAP(cmask)
• Random error in the precipitable water vapor observed by the Raman lidar(pwv_rl_err)
• Aerosol optical depth at 355 nm(aod)
• Aerosol scattering ratio uncertainty(asr_err)
• Aerosol scattering ratio(asr)
• Water vapor mixing ratio error from the Raman lidar near 60 m(rl_w_60m_err)
• Relative Humidity (hybrid-b grid)(rh)
• Fraction of the total precipitable water vapor in the column sensed by the Raman
  lidar(pwv_rl_fraction)
• Aerosol backscatter coefficient uncertainty(bscat_err)
• Aerosol optical depth profiles at 355 nm(aod_profile)
• Random error in the water vapor mixing ratio profile(w_err)