DQRID : D090120.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/19/2008011201/06/20091912Missing
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Subject:
SGP/AOS/C1 - Pump failure and subsequent failure of humidified nephelometer
DataStreams:sgpaosC1.a1
Description:
The pump for the aerosol sampling system failed over a weekend. The humidifier continued 
to operate and soaked the inside of both the reference and wet nephelometers. The 
nephelometers were returned for repair. A replacement neph was installed on 2008-August 5 @1858 
UTC. The nephs were repaired and returned to SGP in December 2008. The humidification 
system was rebuilt and installed on 2009 January 6 at 1912 UTC.
Suggestions: 
Dry nephelometer data (RH<40%) is missing from 20080719 to 20080805. Humidified 

nephelometer data is missing from 20080719 to 20090106.
Measurements:sgpaosC1.a1:
  • Bbs_R_Dry_1um_Neph3W_1
  • Bs_R_Dry_1um_Neph3W_1
  • T_preHG
  • Bbs_G_Wet_10um_Neph3W_2
  • Bs_G_Wet_10um_Neph3W_2
  • Bs_B_Dry_10um_Neph3W_1
  • Ba_R_Dry_1um_PSAP3W_1
  • Ba_G_Dry_1um_PSAP3W_1
  • T_NephInlet_Dry
  • Bs_R_Wet_1um_Neph3W_2
  • Bbs_B_Wet_1um_Neph3W_2
  • Bs_G_Wet_1um_Neph3W_2
  • Ba_G_Dry_1um_PSAP1W_1
  • Bbs_G_Dry_1um_Neph3W_1
  • Bs_G_Dry_10um_Neph3W_1
  • Bs_B_Wet_10um_Neph3W_2
  • Ba_R_Dry_10um_PSAP3W_1
  • Bbs_B_Dry_1um_Neph3W_1
  • Bs_G_Dry_1um_Neph3W_1
  • T_postHG
  • Bbs_G_Dry_10um_Neph3W_1
  • T_NephInlet_Wet
  • Bbs_R_Wet_10um_Neph3W_2
  • Bs_B_Wet_1um_Neph3W_2
  • RH_postHG
  • Ba_B_Dry_10um_PSAP3W_1
  • Bs_R_Wet_10um_Neph3W_2
  • Bbs_B_Wet_10um_Neph3W_2
  • Bbs_G_Wet_1um_Neph3W_2
  • Bs_B_Dry_1um_Neph3W_1
  • RH_preHG
  • Bbs_R_Dry_10um_Neph3W_1
  • RH_NephInlet_Wet
  • Bbs_R_Wet_1um_Neph3W_2
  • RH_NephInlet_Dry
  • Bs_R_Dry_10um_Neph3W_1
  • Ba_G_Dry_10um_PSAP1W_1
  • Ba_G_Dry_10um_PSAP3W_1
  • Bbs_B_Dry_10um_Neph3W_1
  • Ba_B_Dry_1um_PSAP3W_1
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