Data Quality Reports for Session: 178797 User: manasi1mah Completed: 08/04/2016


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D150506.2ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site VisitenaaoshtdmaC1.a1Incorrect
D150812.1ENA/HTDMA/C1 - Incorrect air flowenaaoshtdmaC1.a1Incorrect
D151120.6ENA/HTDMA/C1 - Incorrect RH and air flowenaaoshtdmaC1.a1Incorrect
D160427.7ENA/C1 - Reprocess: Slightly incorrect location fieldsenaaoshtdmaC1.a1Suspect


DQRID : D150506.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/22/2015170004/27/20151700Incorrect
Subject:
ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site Visit
DataStreams:enaaoshtdmaC1.a1
Description:
There was visit of 7 AOS instrument mentors to the ENA AOS during this period of 
instrument repair, calibration and modification. Instruments were occasionally off, or with no 
sample flow, or receiving calibration samples, etc. There was no productive sampling of 
ambient air during this period other than for testing. No data should be used for this period 
as ambient samples.

Note: Two datastream are missing. The CAPS Extinction Monitor and the Greenhouse gas 
instrument.
Measurements:enaaoshtdmaC1.a1:
  • scan_min_diameter_setting
  • scan_time_setting
  • scan_max_diameter_setting
  • dry_rh_setting
  • Concentration of aerosol(aerosol_concentration)
  • dry_diameter_setting
  • bin_width
  • bin_center
  • Total concentration(total_concentration)
  • atomizer
  • scan_type
  • humid_rh
  • num_bins
  • sample_flow
  • bin


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DQRID : D150812.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/28/2015000008/12/20151450Incorrect
Subject:
ENA/HTDMA/C1 - Incorrect air flow
DataStreams:enaaoshtdmaC1.a1
Description:
Low sample flow, no ambient aerosol size selection and HSEMS was measuring cabin air. 
Additionally, HSEMS air flows, temperatures and RH were incorrect.
Measurements:enaaoshtdmaC1.a1:
  • scan_min_diameter_setting
  • scan_time_setting
  • scan_max_diameter_setting
  • dry_rh_setting
  • Concentration of aerosol(aerosol_concentration)
  • dry_diameter_setting
  • bin_width
  • bin_center
  • Total concentration(total_concentration)
  • atomizer
  • scan_type
  • humid_rh
  • num_bins
  • sample_flow
  • bin


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DQRID : D151120.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/27/2015000011/19/20150000Incorrect
Subject:
ENA/HTDMA/C1 - Incorrect RH and air flow
DataStreams:enaaoshtdmaC1.a1
Description:
The HT-DMA internal RH sensor was sending out data in a format that was not correctly 
interpreted by the instrument software. This led the software to assume an incorrect RH 
reading and set the humid and dry air flows at incorrect values, affecting RH and other 
internal flows.
Measurements:enaaoshtdmaC1.a1:
  • scan_min_diameter_setting
  • scan_time_setting
  • scan_max_diameter_setting
  • dry_rh_setting
  • Concentration of aerosol(aerosol_concentration)
  • dry_diameter_setting
  • bin_width
  • bin_center
  • Total concentration(total_concentration)
  • atomizer
  • scan_type
  • humid_rh
  • num_bins
  • sample_flow
  • bin


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DQRID : D160427.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/29/2013094104/30/20162359Suspect
Subject:
ENA/C1 - Reprocess: Slightly incorrect location fields
DataStreams:enaaoshtdmaC1.a1
Description:
Some of the instruments are being processed with the previous "GRW-Azores" lat/lon/alt 
instead of the new "ENA-Azores" lat/lon/alt. The differences are minor, but will be 
corrected. The respective GRW and ENA lat, lon, and alt values are as follows:
 
GRW  lat = 39.0911 ;
ENA lat = 39.0916 ;
GRW  lon = -28.0297 ;
ENA  lon = -28.0257 ;
GRW  alt = 26 ;
ENA  alt = 30.48 ;
Measurements:enaaoshtdmaC1.a1:
  • East longitude(lon)
  • North latitude(lat)
  • Altitude above mean sea level(alt)


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