D Q R Report

DQRID : D131024.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/19/2013	2200	09/15/2013	2200	Incorrect

Subject:	NSA/HSRL/C1 - Laser failure
DataStreams:	nsahsrlC1.a1
Description:	Starting at around 08:00 UTC on July 20, the HSRL laser output stopped. The laser was repaired by UW SSEC staff on Sept 10 but instrument work continued until Sept 15 22:00 UTC. All lidar profiles in this time period should be deemed "bad" and not used.
Suggestions:	Use MPL profile data when available for vertical profile and cloud detection above 2 km. Use Vaisala ceilometer for cloud detection below 2 km.
Measurements:	nsahsrlC1.a1: cal_time num_seeded_shots beta_a combined_gain c_pol_dark_count profile_mask combined_dark_count_lo seed_quality lidar_calibration_Cmm combined_dark_count_hi beta_a_backscatter_std lidar_calibration_Cmc geo_cor mol_cal_pulse beta_a_backscatter cal_time_vector cal_trigger transmitted_energy molecular_counts combined_merge_threshold atten_beta_r_backscatter combined_counts_lo depol frequency_quality lidar_calibration_Cam combined_counts_hi od lock_quality mol_dark_count cross_counts more