DQRs for Session: 185195 User:dzhang4Completed: 04-24-2017

Data Quality Reports for Session: 185195 User: dzhang4 Completed: 04/24/2017

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D120524.7	SGP/CEIL/C1 - Contaminated window	sgpceilC1.b1	Suspect
D160212.3	SGP - Data System Upgrades: Data Missing	sgpceilC1.b1	Missing
D170310.16	SGP/Central Facility - Power Outage	sgpceilC1.b1	Does not affect quality

DQRID : D120524.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/17/2012	1513	04/18/2012	1546	Suspect

Subject:	SGP/CEIL/C1 - Contaminated window
DataStreams:	sgpceilC1.b1
Description:	Alarm shown: Light Path Obstruction and Window Contamination. Window condition was 2%. Observed massive amounts of bird droppings on window. Cleaned window and shortly after window condition had risen to 94% and alarm was cleared.
Measurements:	sgpceilC1.b1: Lowest cloud base height detected.(first_cbh) Third cloud base height(third_cbh) alt_highest_signal sum_backscatter Cloud, base height, second lowest base sensed(second_cbh) detection_status vertical_visibility background_light Backscatter, ceilometer, range and sensitivity corrected(backscatter)

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DQRID : D160212.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/26/2016	1800	01/27/2016	2145	Missing

Subject:	SGP - Data System Upgrades: Data Missing
DataStreams:	sgpceilC1.b1
Description:	The data system was undergoing upgrades. Data were lost during this period.
Measurements:	sgpceilC1.b1: qc_second_cbh Altitude above mean sea level(alt) alt_highest_signal North latitude(lat) time_offset Cloud, base height, second lowest base sensed(second_cbh) qc_background_light measurement_parameters qc_first_cbh tilt_angle range_bounds base_time status_flag qc_window_contamination sum_backscatter detection_status range qc_laser_pulse_energy vertical_visibility background_light qc_third_cbh East longitude(lon) time_bounds qc_sum_backscatter qc_alt_highest_signal laser_temperature qc_receiver_sensitivity laser_pulse_energy Lowest cloud base height detected.(first_cbh) qc_tilt_angle qc_laser_temperature Third cloud base height(third_cbh) time window_contamination qc_window_transmission status_string qc_vertical_visibility window_transmission Backscatter, ceilometer, range and sensitivity corrected(backscatter) receiver_sensitivity

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DQRID : D170310.16

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/05/2017	0023	03/09/2017	1430	Does not affect quality

Subject:	SGP/Central Facility - Power Outage
DataStreams:	sgpceilC1.b1
Description:	Automated scripts show that these instruments were affected by a power outage at the central facility resulting in missing data. Most of the instruments came back online on March 6th but some took longer.
Measurements:	sgpceilC1.b1: Altitude above mean sea level(alt) qc_second_cbh North latitude(lat) alt_highest_signal time_offset Cloud, base height, second lowest base sensed(second_cbh) qc_background_light measurement_parameters qc_first_cbh tilt_angle range_bounds base_time status_flag qc_window_contamination sum_backscatter detection_status qc_laser_pulse_energy range vertical_visibility background_light qc_third_cbh East longitude(lon) time_bounds qc_sum_backscatter qc_alt_highest_signal laser_temperature qc_receiver_sensitivity laser_pulse_energy Lowest cloud base height detected.(first_cbh) qc_laser_temperature qc_tilt_angle Third cloud base height(third_cbh) time window_contamination qc_window_transmission status_string qc_vertical_visibility window_transmission Backscatter, ceilometer, range and sensitivity corrected(backscatter) receiver_sensitivity

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