DQRs for Session: 180503 User:simpfendoerferl1Completed: 10-17-2016

Data Quality Reports for Session: 180503 User: simpfendoerferl1 Completed: 10/17/2016

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D130712.4	NSA/HSRL/C1 - Degraded operation	nsahsrlC1.a1	Suspect
D130712.5	NSA/HSRL/C1 - Missing data	nsahsrlC1.a1	Missing
D130712.6	NSA/HSRL/C1 - Instrument reinstallation	nsahsrlC1.a1	Incorrect
D130712.7	NSA/HSRL/C1 - Degraded operation, laser instability, dirty window	nsahsrlC1.a1	Suspect
D130712.8	NSA/HSRL/C1 - Laser instability	nsahsrlC1.a1	Suspect
D131024.1	NSA/HSRL/C1 - Laser failure	nsahsrlC1.a1	Incorrect
D131025.2	NSA/HSRL/C1 - Filter wheel problem	nsahsrlC1.a1	Incorrect
D150123.10	NSA/HSRL/C1 - Data not available	nsahsrlC1.a1	Missing

DQRID : D130712.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/08/2011	0000	12/04/2011	2359	Suspect

Subject:	NSA/HSRL/C1 - Degraded operation
DataStreams:	nsahsrlC1.a1
Description:	The HSRL was suffering from operational issues following an enclosure overheating incident. Data continued to be collected, albeit with reduced power output, detection sensitivity, and calibration issues. It has utility for cloud and aerosol detection but must be used with caution. Heights and locations are quantitative and reliable, intensities are not.
Measurements:	nsahsrlC1.a1: Particulate extinction cross section per unit volume(beta_a) Linear depolarization ratio profile(depol) Particulate backscatter cross section per unit volume(beta_a_backscatter)

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DQRID : D130712.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/05/2011	0000	10/08/2012	2359	Missing

Subject:	NSA/HSRL/C1 - Missing data
DataStreams:	nsahsrlC1.a1
Description:	Data are missing and unrecoverable.
Measurements:	nsahsrlC1.a1: combined_gain frequency_quality raob_beta_m beta_a_backscatter_std cal_time Particulate extinction cross section per unit volume(beta_a) molecular_counts seed_quality dewpoint_profile range_resolution lock_quality combined_counts_hi cal_time_vector pressure_profile mol_dark_count East longitude(lon) North latitude(lat) temperature_profile time_average mol_cal_pulse combined_dark_count_hi combined_merge_threshold Particulate backscatter cross section per unit volume(beta_a_backscatter) combined_dark_count_lo geo_cor range profile_mask atten_beta_r_backscatter base_time time_offset time combined_counts_lo c_pol_dark_count num_seeded_shots lidar_calibration_Cmc lidar_calibration_Cam cal_trigger od Linear depolarization ratio profile(depol) lidar_calibration_Cmm cross_counts piezovoltage raob_station raob_time top_alt_sounding transmitted_energy raob_time_vector Altitude above mean sea level(alt)

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DQRID : D130712.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/09/2012	0000	10/12/2012	2359	Incorrect

Subject:	NSA/HSRL/C1 - Instrument reinstallation
DataStreams:	nsahsrlC1.a1
Description:	Instrument was being reinstalled. Data are not valid, do not use.
Measurements:	nsahsrlC1.a1: combined_gain frequency_quality raob_beta_m beta_a_backscatter_std cal_time Particulate extinction cross section per unit volume(beta_a) molecular_counts dewpoint_profile seed_quality range_resolution lock_quality cal_time_vector combined_counts_hi pressure_profile mol_dark_count temperature_profile mol_cal_pulse combined_dark_count_hi combined_merge_threshold Particulate backscatter cross section per unit volume(beta_a_backscatter) combined_dark_count_lo geo_cor profile_mask range atten_beta_r_backscatter combined_counts_lo c_pol_dark_count num_seeded_shots lidar_calibration_Cmc lidar_calibration_Cam cal_trigger od Linear depolarization ratio profile(depol) lidar_calibration_Cmm cross_counts raob_station piezovoltage top_alt_sounding transmitted_energy raob_time raob_time_vector

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DQRID : D130712.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/13/2012	0000	03/18/2013	1730	Suspect

Subject:	NSA/HSRL/C1 - Degraded operation, laser instability, dirty window
DataStreams:	nsahsrlC1.a1
Description:	Following installation instrument was still not operating optimally. Laser instability and reduced sensitivity were impacting measurements. Cleaning of the external window improved signal levels and sensitivity on March 18 17:30. The height of detected clouds and aerosols is quantitative and accurate however the calibrated backscatter quantities are uncertain. Nevertheless, the sensitivity of the HSRL even in this degraded capacity is superior to VCeil and MPL for cloud and aerosol detection.
Measurements:	nsahsrlC1.a1: Particulate extinction cross section per unit volume(beta_a) Linear depolarization ratio profile(depol) Particulate backscatter cross section per unit volume(beta_a_backscatter)

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DQRID : D130712.8

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/18/2013	1730	07/19/2013	2230	Suspect

Subject:	NSA/HSRL/C1 - Laser instability
DataStreams:	nsahsrlC1.a1
Description:	The HSRL laser still exhibits instability causing calibration uncertainty, especially for the beta_a (extinction profile), beta_a_backscatter (backscatter profile), and depol (depolarization ratio). Cloud and aerosol layer heights are quantitative and accurate however the calibrated quantities above have increased uncertainty. Nevertheless, the sensitivity of the HSRL in this degraded mode is still superior to other lidar on site (MPL and VCeil). The laser failed on 07/19/2013 at 22:30.
Measurements:	nsahsrlC1.a1: Particulate extinction cross section per unit volume(beta_a) Linear depolarization ratio profile(depol) Particulate backscatter cross section per unit volume(beta_a_backscatter)

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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.
Measurements:	nsahsrlC1.a1: combined_gain frequency_quality beta_a_backscatter_std cal_time Particulate extinction cross section per unit volume(beta_a) molecular_counts seed_quality lock_quality combined_counts_hi cal_time_vector mol_dark_count mol_cal_pulse combined_dark_count_hi combined_merge_threshold Particulate backscatter cross section per unit volume(beta_a_backscatter) combined_dark_count_lo geo_cor profile_mask atten_beta_r_backscatter combined_counts_lo c_pol_dark_count num_seeded_shots lidar_calibration_Cmc lidar_calibration_Cam cal_trigger od Linear depolarization ratio profile(depol) lidar_calibration_Cmm cross_counts transmitted_energy

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DQRID : D131025.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
09/29/2013	0300	09/30/2013	1425	Incorrect

Subject:	NSA/HSRL/C1 - Filter wheel problem
DataStreams:	nsahsrlC1.a1
Description:	An automated filter wheel failed to move properly and/or report position properly. These data are unusable.
Measurements:	nsahsrlC1.a1: combined_gain frequency_quality beta_a_backscatter_std cal_time Particulate extinction cross section per unit volume(beta_a) molecular_counts seed_quality lock_quality combined_counts_hi cal_time_vector mol_dark_count mol_cal_pulse combined_dark_count_hi combined_merge_threshold Particulate backscatter cross section per unit volume(beta_a_backscatter) combined_dark_count_lo geo_cor profile_mask atten_beta_r_backscatter combined_counts_lo c_pol_dark_count num_seeded_shots lidar_calibration_Cmc lidar_calibration_Cam cal_trigger od Linear depolarization ratio profile(depol) lidar_calibration_Cmm cross_counts transmitted_energy

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DQRID : D150123.10

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/12/2014	1720	12/16/2014	1900	Missing

Subject:	NSA/HSRL/C1 - Data not available
DataStreams:	nsahsrlC1.a1
Description:	No data available during this period
Measurements:	nsahsrlC1.a1: combined_gain frequency_quality raob_beta_m beta_a_backscatter_std cal_time Particulate extinction cross section per unit volume(beta_a) molecular_counts seed_quality dewpoint_profile range_resolution lock_quality combined_counts_hi cal_time_vector pressure_profile mol_dark_count East longitude(lon) North latitude(lat) temperature_profile time_average mol_cal_pulse combined_dark_count_hi combined_merge_threshold Particulate backscatter cross section per unit volume(beta_a_backscatter) combined_dark_count_lo geo_cor range profile_mask atten_beta_r_backscatter base_time time_offset time combined_counts_lo c_pol_dark_count num_seeded_shots lidar_calibration_Cmc lidar_calibration_Cam cal_trigger od Linear depolarization ratio profile(depol) lidar_calibration_Cmm cross_counts piezovoltage raob_station raob_time top_alt_sounding transmitted_energy raob_time_vector Altitude above mean sea level(alt)

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