DQRs for Session: 183824 User:pmarinCompleted: 02-28-2017

Data Quality Reports for Session: 183824 User: pmarin Completed: 02/28/2017

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D130705.2	SGP/AOS/C1 - Missing data	sgpnoaaaosccn100C1.b1	Missing
D140205.4	SGP/CCN/C1 - CCN shutdown for repair	sgpaosccnavgC1.c1	Missing
D140929.2	SGP/AOS/C1 - Frequent power and communication loss problems	sgpnoaaaosccn100C1.b1	Does not affect quality
D140929.3	SGP/CCN/C1 - Frequent power and communication loss problems	sgpaosccnavgC1.c1	Does not affect quality
D140929.5	SGP/CCN/C1 - CCN presure sensor failure	sgpaosccnavgC1.c1	Incorrect
D141017.5	SGP/CCN/C1 - Incorrect supersaturation stepping method	sgpaosccnavgC1.c1	Incorrect
D141031.7	SGP/AOS/C1 - New UPS installed	sgpnoaaaosccn100C1.b1	Missing
D141208.1	SGP/CCN/C1 - CCN signal is low from possible leak and decline in laser power	sgpaosccnavgC1.c1	Suspect
D141211.1	SGP/CCN/C1 - Incorrect temperature gains or settings	sgpaosccnavgC1.c1	Incorrect
D150306.2	SGP/CCN/C1 - Instrument under counting at lowest super saturation value	sgpaosccnavgC1.c1	Suspect
D150413.1	SGP/CCN/C1 - Removed for calibration	sgpaosccnavgC1.c1	Missing
D151103.3	SGP/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/C1 - System Maintenance	sgpaosccnavgC1.c1, sgpnoaaaosccn100C1.b1	Incorrect
D151210.2	SGP/AOS/C1 - Pump and blower failure	sgpaosccnavgC1.c1, sgpnoaaaosccn100C1.b1	Incorrect
D151210.5	SGP/AOS/C1 - Power outage	sgpnoaaaosccn100C1.b1	Incorrect
D160104.7	SGP Site Power Outage Due to Winter Storm	sgpnoaaaosccn100C1.b1, sgpaosccnavgC1.c1	Does not affect quality
D160406.2	SGP/AOS/C1 - Wildfire smoke plumes advecting over facility	sgpnoaaaosccn100C1.b1	Does not affect quality

DQRID : D130705.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/13/2013	1800	06/17/2013	1506	Missing

Subject:	SGP/AOS/C1 - Missing data
DataStreams:	sgpnoaaaosccn100C1.b1
Description:	Data are missing and unrecoverable.
Measurements:	sgpnoaaaosccn100C1.b1: CCN_ss_set CCN_laser_current Mean number concentration of N_CCN(N_CCN) AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_temperature_std CCN_Q_sheath CCN_T_nafion CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_t_read_TEC3 CCN_temp_unstable_flag AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample time CCN_T_OPC Altitude above mean sea level(alt) CCN_temperature_gradient time_offset East longitude(lon) base_time CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample North latitude(lat) CCN_T_sample

Back To Table of Contents

DQRID : D140205.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/04/2013	1530	10/19/2013	0100	Missing

Subject:	SGP/CCN/C1 - CCN shutdown for repair
DataStreams:	sgpaosccnavgC1.c1
Description:	A thermal electric cooler (TEC) was found to be not working. The instrument was shutdown until the TEC could be replaced.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated N_CPC_std North latitude(lat) column_temperature_gradient_measured_std column_temperature_gradient_measured column_temperature_gradient_setting droplet_size supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) time_offset Mean number concentration of N_CCN(N_CCN) East longitude(lon) AOS CCN droplet count by bin size(N_CCN_dN) Altitude above mean sea level(alt) time base_time

Back To Table of Contents

DQRID : D140929.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/12/2014	0614	07/21/2014	1340	Does not affect quality

Subject:	SGP/AOS/C1 - Frequent power and communication loss problems
DataStreams:	sgpnoaaaosccn100C1.b1
Description:	There were frequent power and communication losses over the time period. The problem was resolved after power was redistributed and all data acquisition components were replaced.
Measurements:	sgpnoaaaosccn100C1.b1: CCN_ss_set CCN_laser_current Mean number concentration of N_CCN(N_CCN) AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_temperature_std CCN_Q_sheath CCN_T_nafion CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_t_read_TEC3 CCN_temp_unstable_flag AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample time CCN_T_OPC Altitude above mean sea level(alt) CCN_temperature_gradient time_offset East longitude(lon) base_time CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample North latitude(lat) CCN_T_sample

Back To Table of Contents

DQRID : D140929.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/12/2014	0614	07/15/2014	2250	Does not affect quality

Subject:	SGP/CCN/C1 - Frequent power and communication loss problems
DataStreams:	sgpaosccnavgC1.c1
Description:	There were frequent power and communication losses over the time period. The problem was resolved after power was redistributed and all data acquisition components were replaced.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated N_CPC_std North latitude(lat) column_temperature_gradient_measured_std column_temperature_gradient_measured column_temperature_gradient_setting droplet_size supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) time_offset Mean number concentration of N_CCN(N_CCN) East longitude(lon) AOS CCN droplet count by bin size(N_CCN_dN) Altitude above mean sea level(alt) time base_time

Back To Table of Contents

DQRID : D140929.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/15/2014	2250	08/12/2014	1400	Incorrect

Subject:	SGP/CCN/C1 - CCN presure sensor failure
DataStreams:	sgpaosccnavgC1.c1
Description:	Sheath flow reading declined and couldn't be adjusted. Unit was shipped back to mentor for repair and calibration.
Measurements:	sgpaosccnavgC1.c1: supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) N_CPC_std supersaturation_calculated Mean number concentration of N_CCN(N_CCN) AOS CCN droplet count by bin size(N_CCN_dN) column_temperature_gradient_measured column_temperature_gradient_measured_std column_temperature_gradient_setting droplet_size

Back To Table of Contents

DQRID : D141017.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/30/2012	0000	06/11/2013	2359	Incorrect

Subject:	SGP/CCN/C1 - Incorrect supersaturation stepping method
DataStreams:	sgpaosccnavgC1.c1
Description:	The supersaturation stepping method over this period is not consistent with the ccnavg VAP expectations. Therefore, the averaging of the fields done by the CCNAVG VAP are incorrect - the output of the CCNAVG VAP for all fields is bad over this entire period.
Measurements:	sgpaosccnavgC1.c1: supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) N_CPC_std supersaturation_calculated Mean number concentration of N_CCN(N_CCN) AOS CCN droplet count by bin size(N_CCN_dN) column_temperature_gradient_measured column_temperature_gradient_measured_std column_temperature_gradient_setting droplet_size

Back To Table of Contents

DQRID : D141031.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/23/2014	1954	10/23/2014	2125	Missing

Subject:	SGP/AOS/C1 - New UPS installed
DataStreams:	sgpnoaaaosccn100C1.b1
Description:	System down while new UPS is installed
Measurements:	sgpnoaaaosccn100C1.b1: CCN_ss_set CCN_laser_current Mean number concentration of N_CCN(N_CCN) AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_temperature_std CCN_Q_sheath CCN_T_nafion CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_t_read_TEC3 CCN_temp_unstable_flag AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample time CCN_T_OPC Altitude above mean sea level(alt) CCN_temperature_gradient time_offset East longitude(lon) base_time CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample North latitude(lat) CCN_T_sample

Back To Table of Contents

DQRID : D141208.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/15/2009	1600	08/03/2009	0000	Suspect

Subject:	SGP/CCN/C1 - CCN signal is low from possible leak and decline in laser power
DataStreams:	sgpaosccnavgC1.c1
Description:	CCN was returned with new laser. Signal was unusually low and flow calibration had changed substantially. A leak is suspect as well as declining laser power as new laser was defective.
Measurements:	sgpaosccnavgC1.c1: supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) N_CPC_std supersaturation_calculated Mean number concentration of N_CCN(N_CCN) AOS CCN droplet count by bin size(N_CCN_dN) column_temperature_gradient_measured column_temperature_gradient_measured_std column_temperature_gradient_setting droplet_size

Back To Table of Contents

DQRID : D141211.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/22/2007	2200	10/23/2007	1515	Incorrect

Subject:	SGP/CCN/C1 - Incorrect temperature gains or settings
DataStreams:	sgpaosccnavgC1.c1
Description:	New software was installed with instrument and temperature gains didn't transfer correctly. Super saturation values are incorrect and instrument tended to overheat in an attempt to reach set point values.
Measurements:	sgpaosccnavgC1.c1: supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) N_CPC_std supersaturation_calculated Mean number concentration of N_CCN(N_CCN) AOS CCN droplet count by bin size(N_CCN_dN) column_temperature_gradient_measured column_temperature_gradient_measured_std column_temperature_gradient_setting droplet_size

Back To Table of Contents

DQRID : D150306.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/11/2013	1926	04/08/2015	1730	Suspect

Subject:	SGP/CCN/C1 - Instrument under counting at lowest super saturation value
DataStreams:	sgpaosccnavgC1.c1
Description:	The slow temperature decay of the OPC induced droplet evaporation and caused an under counting of the droplets at the lowest %ss, 0.15.
Measurements:	sgpaosccnavgC1.c1: supersaturation_setpoint supersaturation_calculated

Back To Table of Contents

DQRID : D150413.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/11/2014	0700	03/15/2015	2045	Missing

Subject:	SGP/CCN/C1 - Removed for calibration
DataStreams:	sgpaosccnavgC1.c1
Description:	Instrument was removed for calibration and scanning evaluation.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated N_CPC_std North latitude(lat) column_temperature_gradient_measured_std column_temperature_gradient_measured column_temperature_gradient_setting droplet_size supersaturation_setpoint N_CCN_std Condensation particle concentration number(N_CPC) time_offset Mean number concentration of N_CCN(N_CCN) East longitude(lon) AOS CCN droplet count by bin size(N_CCN_dN) Altitude above mean sea level(alt) time base_time

Back To Table of Contents

DQRID : D151103.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/20/2015	2044	10/24/2015	2300	Incorrect

Subject:	SGP/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/C1 - System Maintenance
DataStreams:	sgpaosccnavgC1.c1, sgpnoaaaosccn100C1.b1
Description:	The system was offline for cleaning and calibration.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated column_temperature_gradient_measured column_temperature_gradient_setting droplet_size N_CCN_std Condensation particle concentration number(N_CPC) Altitude above mean sea level(alt) AOS CCN droplet count by bin size(N_CCN_dN) time base_time N_CPC_std North latitude(lat) column_temperature_gradient_measured_std supersaturation_setpoint time_offset Mean number concentration of N_CCN(N_CCN) East longitude(lon) sgpnoaaaosccn100C1.b1: CCN_ss_set CCN_laser_current Mean number concentration of N_CCN(N_CCN) CCN_temperature_std AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_Q_sheath CCN_T_nafion CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_t_read_TEC3 CCN_temp_unstable_flag AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample time CCN_T_OPC Altitude above mean sea level(alt) time_offset CCN_temperature_gradient base_time East longitude(lon) CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample North latitude(lat) CCN_T_sample

Back To Table of Contents

DQRID : D151210.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/07/2015	1552	12/08/2015	1649	Incorrect

Subject:	SGP/AOS/C1 - Pump and blower failure
DataStreams:	sgpaosccnavgC1.c1, sgpnoaaaosccn100C1.b1
Description:	The fuse on the power strip with the pump and blower blew. The blower motor seized and the blower had to be replaced.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated column_temperature_gradient_measured column_temperature_gradient_setting droplet_size N_CCN_std Condensation particle concentration number(N_CPC) AOS CCN droplet count by bin size(N_CCN_dN) N_CPC_std column_temperature_gradient_measured_std supersaturation_setpoint Mean number concentration of N_CCN(N_CCN) sgpnoaaaosccn100C1.b1: CCN_ss_set CCN_laser_current Mean number concentration of N_CCN(N_CCN) CCN_temperature_std AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_Q_sheath CCN_T_nafion CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_temp_unstable_flag CCN_t_read_TEC3 AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample CCN_T_OPC CCN_temperature_gradient CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample CCN_T_sample

Back To Table of Contents

DQRID : D151210.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/17/2015	0425	11/17/2015	1600	Incorrect

Subject:	SGP/AOS/C1 - Power outage
DataStreams:	sgpnoaaaosccn100C1.b1
Description:	Power outage, no data collected.
Measurements:	sgpnoaaaosccn100C1.b1: CCN_ss_set Mean number concentration of N_CCN(N_CCN) CCN_laser_current CCN_temperature_std AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_super_saturation_calculated CCN_Q_sheath CCN_T_nafion CCN_proportional_valve_voltage CCN_t_read_TEC1 CCN_T_inlet CCN_first_stage_monitor_voltage CCN_t_read_TEC2 CCN_temp_unstable_flag CCN_t_read_TEC3 AOS CCN droplet count by bin size(N_CCN_dN) CCN_Q_sample CCN_P_sample CCN_T_sample CCN_T_OPC CCN_temperature_gradient

Back To Table of Contents

DQRID : D160104.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/26/2015	0000	01/01/2016	2359	Does not affect quality

Subject:	SGP Site Power Outage Due to Winter Storm
DataStreams:	sgpnoaaaosccn100C1.b1, sgpaosccnavgC1.c1
Description:	On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result was very very slick roads and mass power outages. The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th. The power was restored on 7:56 PM CDT on Wednesday, December 30th Site Emergency procedures were activated and Technicians drained water out of instrument reservoirs and other measures as needed, early Monday morning. On Wednesdays as roads and power started was restored to much of the areas east of I-35 , Site Technicians performed maintenance on several Extended Facilities. During this period, data are potentially missing, incorrect, or suspect. Carefully inspect the data before use.
Measurements:	sgpaosccnavgC1.c1: supersaturation_calculated column_temperature_gradient_measured column_temperature_gradient_setting droplet_size N_CCN_std Condensation particle concentration number(N_CPC) AOS CCN droplet count by bin size(N_CCN_dN) Altitude above mean sea level(alt) time base_time N_CPC_std North latitude(lat) column_temperature_gradient_measured_std supersaturation_setpoint time_offset Mean number concentration of N_CCN(N_CCN) East longitude(lon) sgpnoaaaosccn100C1.b1: CCN_ss_set Mean number concentration of N_CCN(N_CCN) CCN_laser_current CCN_temperature_std AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number) CCN_T_nafion CCN_Q_sheath CCN_t_read_TEC1 CCN_t_read_TEC2 CCN_t_read_TEC3 CCN_temp_unstable_flag AOS CCN droplet count by bin size(N_CCN_dN) CCN_P_sample time CCN_T_OPC Altitude above mean sea level(alt) time_offset CCN_temperature_gradient East longitude(lon) base_time CCN_super_saturation_calculated CCN_proportional_valve_voltage CCN_T_inlet CCN_first_stage_monitor_voltage CCN_Q_sample North latitude(lat) CCN_T_sample

Back To Table of Contents

DQRID : D160406.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/18/2016	0400	03/18/2016	1100	Does not affect quality
03/25/2016	0100	03/25/2016	0700	Does not affect quality

Subject:	SGP/AOS/C1 - Wildfire smoke plumes advecting over facility
DataStreams:	sgpnoaaaosccn100C1.b1
Description:	Smoke from nearby wildfires advected through SGP C1 during the listed affected time ranges, resulting in high signals observable in many of the listed AOS datastreams.
Measurements:	sgpnoaaaosccn100C1.b1: AOS CCN droplet count by bin size(N_CCN_dN) Mean number concentration of N_CCN(N_CCN)

Back To Table of Contents

END OF DATA