Data Quality Reports for Session: 183782 User: maike1ahlg Completed: 02/27/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D131007.6MAG/ALL/M1 - Ship in Dry Dockmagaosccn100M1.a1Missing
D141023.4ENA/MAG/PVC/TMP/CCN/C1 - Reprocess: CCN temperature unstable flag reversedmagaosccn100M1.a1Incorrect
D141210.1MAG/CCN/M1 - Problem with time fieldsmagaosccn100M1.a1Suspect
D150211.2MAG/AOS/ALL/M1/S1/S2 - Ship in portmagaosccn100M1.a1Suspect


DQRID : D131007.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/08/2013174505/11/20130548Missing
Subject:
MAG/ALL/M1 - Ship in Dry Dock
DataStreams:magaosccn100M1.a1
Description:
Ship was at dry dock without MAGIC instruments or in transit to or from dry dock.  No 
instrument data available.
Measurements:magaosccn100M1.a1:
  • AOS CCN droplet count by bin size(N_CCN_dN)
  • CCN_laser_current
  • CCN_t_read_TEC2
  • North latitude(lat)
  • CCN_t_read_TEC3
  • time_offset
  • CCN_t_read_TEC1
  • Altitude above mean sea level(alt)
  • CCN_T_inlet
  • Mean number concentration of N_CCN(N_CCN)
  • East longitude(lon)
  • CCN_T_OPC
  • CCN_temperature_gradient
  • CCN_Q_sheath
  • CCN_super_saturation_calculated
  • CCN_first_stage_monitor_voltage
  • CCN_P_sample
  • time
  • AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • CCN_T_nafion
  • CCN_temperature_std
  • base_time
  • CCN_temp_unstable_flag
  • CCN_proportional_valve_voltage
  • CCN_T_sample
  • CCN_Q_sample
  • CCN_ss_set

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DQRID : D141023.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/16/2012000010/20/20142359Incorrect
Subject:
ENA/MAG/PVC/TMP/CCN/C1 - Reprocess: CCN temperature unstable flag reversed
DataStreams:magaosccn100M1.a1
Description:
The variable CCN-temp unstable is incorrectly defined as a hexadecimal value. The values 
are 0 or 1 only. The description is also reversed. A value of 1 indicates the instrument 
is operating stably.
Measurements:magaosccn100M1.a1:
  • CCN_temp_unstable_flag

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DQRID : D141210.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/28/2012203701/11/20130500Suspect
05/14/2013160010/07/20131100Suspect
Subject:
MAG/CCN/M1 - Problem with time fields
DataStreams:magaosccn100M1.a1
Description:
During the deployment the instrument time for the CCN was not automatically synched and 
tended to drift relative to the time corrected by a time server. In addition, the clock was 
set 1 hour off during the first time range.  

During the first time range the CCN time was fast from ~55 to 72 minutes

During the second time range the CCN time was fast from ~1 to 10 minutes.  

These approximations were determined by comparing the time of spikes in UHSAS CPC data and 
are very rough.

A document attached to DQPR 4362 shows the time of the peaks used to approximate the error 
in the time.
Measurements:magaosccn100M1.a1:
  • CCN_first_stage_monitor_voltage
  • CCN_super_saturation_calculated
  • AOS CCN droplet count by bin size(N_CCN_dN)
  • CCN_P_sample
  • CCN_laser_current
  • CCN_t_read_TEC2
  • CCN_t_read_TEC3
  • time_offset
  • CCN_t_read_TEC1
  • time
  • CCN_T_inlet
  • AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • CCN_T_nafion
  • Mean number concentration of N_CCN(N_CCN)
  • base_time
  • CCN_temperature_std
  • CCN_temp_unstable_flag
  • CCN_T_OPC
  • CCN_T_sample
  • CCN_proportional_valve_voltage
  • CCN_Q_sample
  • CCN_temperature_gradient
  • CCN_ss_set
  • CCN_Q_sheath

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DQRID : D150211.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/29/2013124808/31/20131220Suspect
08/01/2013124708/03/20131410Suspect
11/01/2012131411/03/20121757Suspect
07/12/2013060107/13/20131218Suspect
06/06/2013124006/08/20131125Suspect
09/20/2012132709/22/20121223Suspect
11/08/2012133011/09/20121732Suspect
01/03/2013063501/05/20130523Suspect
10/25/2012061210/26/20120650Suspect
11/30/2012013012/01/20121332Suspect
08/15/2013131208/17/20131902Suspect
05/30/2013053805/31/20131148Suspect
11/22/2012061511/24/20121105Suspect
10/04/2012135910/06/20121132Suspect
09/26/2013131909/28/20131135Suspect
08/22/2013090708/23/20131747Suspect
06/13/2013054506/14/20131705Suspect
09/12/2013134009/14/20131305Suspect
07/18/2013223207/20/20131252Suspect
05/16/2013053505/17/20131704Suspect
09/12/2012125509/14/20122326Suspect
06/27/2013065006/28/20131759Suspect
12/20/2012073812/22/20120847Suspect
12/06/2012084212/07/20120820Suspect
07/25/2013050707/26/20131342Suspect
09/27/2012053309/28/20120952Suspect
06/20/2013130306/22/20131205Suspect
05/23/2013132305/25/20131204Suspect
07/03/2013223207/07/20131800Suspect
08/08/2013045908/09/20131040Suspect
09/05/2013054809/06/20131248Suspect
10/03/2013054510/04/20131038Suspect
12/13/2012144012/15/20121351Suspect
10/11/2012060010/12/20120850Suspect
12/27/2012233412/29/20121306Suspect
11/15/2012143011/17/20121315Suspect
10/18/2012131810/20/20121128Suspect
09/19/2013053609/20/20131150Suspect
Subject:
MAG/AOS/ALL/M1/S1/S2 - Ship in port
DataStreams:magaosccn100M1.a1
Description:
The ship was in port during these periods and the measurements may be affected by various 
sources (overhead cranes, anthropogenic sources, etc).

Note: Dates and times were found by looking at the NAV datastream.  The standard deviation 
of pitch, roll, and surge velocity were used to determine when the ship was slowing down 
to enter port or speeding up to leave port.  Thresholds used; pitch (0.01), roll (0.01), 
surge velocity (3.0)
Measurements:magaosccn100M1.a1:
  • AOS CCN droplet count by bin size(N_CCN_dN)
  • CCN_laser_current
  • CCN_t_read_TEC2
  • North latitude(lat)
  • CCN_t_read_TEC3
  • time_offset
  • CCN_t_read_TEC1
  • CCN_T_inlet
  • Altitude above mean sea level(alt)
  • Mean number concentration of N_CCN(N_CCN)
  • CCN_T_OPC
  • East longitude(lon)
  • CCN_temperature_gradient
  • CCN_Q_sheath
  • CCN_super_saturation_calculated
  • CCN_first_stage_monitor_voltage
  • CCN_P_sample
  • time
  • AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • CCN_T_nafion
  • CCN_temperature_std
  • base_time
  • CCN_temp_unstable_flag
  • CCN_proportional_valve_voltage
  • CCN_T_sample
  • CCN_Q_sample
  • CCN_ss_set

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END OF DATA