Data Quality Reports for Session: 143617 User: lovejoon82 Completed: 07/12/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D000203.2SGP/AOS/C1 - Humidograph water circulation system failuresgpaosC1.a0
D000203.3SGP/AOS/C1 - CN counter removedsgpaosC1.a0
D980505.1SGP/AOS/C1 - Annual MaintenancesgpaosC1.a0
D980528.1SGP/AOS/C1 - Optical Particle Counter (PCASP-X) downsgpaosC1.a0, sgpaosauxC1.a0
D990611.1SGP/AOS/C1 - Ozone Instrument FailuresgpaosC1.a0, sgpaosauxC1.a0
D990614.1SGP/AOS/C1 - Invalid absorption datasgpaosC1.a0, sgpaosauxC1.a0
D990618.1SGP/AOS/C1 - Incorrect absorption and scattering datasgpaosC1.a0
D990809.1SGP/AOS/C1 - Ozone instrument errorsgpaosauxC1.a0, sgpaosC1.a0


DQRID : D000203.2
Start DateStart TimeEnd DateEnd Time
12/02/1999230001/15/20000000
Subject:
SGP/AOS/C1 - Humidograph water circulation system failure
DataStreams:sgpaosC1.a0
Description:
The water circulation system for the AOS humidograph failed.  Consequently, the humidified 
nephelometer was reporting aerosol light scattering values during this period that were 
close to what the reference nephelometer was observing. The difference between the two 
sets of measurements reflect particle losses in the humidifier and different temperature 
environments for the two instruments. Humidified nephelometer data during this period are 
technically valid, they just do not reflect relative humidity scans (the normal operating 
mode).
Measurements:sgpaosC1.a0:
  • Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
  • Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
  • Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
  • Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
  • Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
  • Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
  • Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
  • Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
  • Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
  • Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
  • Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
  • Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)

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DQRID : D000203.3
Start DateStart TimeEnd DateEnd Time
11/16/1999044801/15/20000000
07/08/2002113108/05/20021424
Subject:
SGP/AOS/C1 - CN counter removed
DataStreams:sgpaosC1.a0
Description:
The AOS condensation particle counter performance degraded to unacceptable
levels and was removed for repair.  

For the first time period: upon inspection of the internal condition of the instrument, it 
was found that oil was present in the intake line.  It is unknown how this oil could 
have arrived in this position.  The instrument was thoroughly cleaned and back-flushed, and 
returned to service during the maintenance visit.

For the second time period: The degradation of began July 8th.  Data collected during this 
time period are either incorrect or missing and should not be used.
Measurements:sgpaosC1.a0:
  • Particle concentration from Condensation Particle Counter(CPCPartConc)

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DQRID : D980505.1
Start DateStart TimeEnd DateEnd Time
07/19/1999145207/30/19991829
01/10/2000140001/15/20000000
04/20/1998144904/23/19982136
08/04/1997145908/08/19971348
09/30/2002130010/04/20021900
03/17/2003154703/21/20032248
Subject:
SGP/AOS/C1  - Annual Maintenance
DataStreams:sgpaosC1.a0
Description:
The AOS Annual maintenance/calibration visit occurred during these periods.  During these 
times, instruments were cleaned, calibrated, and when necessary, repaired.  Instruments 
were online collecting data for some of the time; however, periods of contamination are 
probable because aerosol sampling lines were opened for inspection and cleaning and pumps 
were switched off for periods of time. Any data fields during this period that contain 
data should be considered incorrect.
Measurements:sgpaosC1.a0:
  • Particle concentration (0.50 um < Dp < 0.60 um) from PMS PCASP optical particle
    counter, channel 13(pa50_p60conc)
  • Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
  • HGupstream_RH
  • TSINephTSamp_HRH
  • Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
  • Pres530nm
  • Particle concentration (2.00 um < Dp < 2.30 um) from PMS PCASP optical particle
    counter, channel 23(pa200_p230conc)
  • HGdownstream_T
  • RH530nm
  • Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
  • Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
  • Particle concentration (2.30 um < Dp < 2.60 um) from PMS PCASP optical particle
    counter, channel 24(pa230_p260conc)
  • TSINephRHSamp_LRH
  • Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
  • Absorption coefficient at 10 um(Bap_I_10um)
  • Particle concentration (3.00 um < Dp < 3.50 um) from PMS PCASP optical particle
    counter, channel 26(pa300_p350conc)
  • Particle concentration (0.70 um < Dp < 0.80 um) from PMS PCASP optical particle
    counter, channel 15(pa70_p80conc)
  • Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
  • Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
  • Particle concentration (1.00 um < Dp < 1.30 um) from PMS PCASP optical particle
    counter, channel 18(pa100_p130conc)
  • Particle concentration (0.20 um < Dp < 0.23 um) from PMS PCASP optical particle
    counter, channel 6(pa20_p23conc)
  • Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
  • TSINephRHSamp_HRH
  • Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
  • Particle concentration (0.45 um < Dp < 0.50 um) from PMS PCASP optical particle
    counter, channel 12(pa45_p50conc)
  • Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
  • Backscattering coefficient at 530 nm from single wave nephelometer(Bscat530nm)
  • Particle concentration (1.40 um < Dp < 1.60 um) from PMS PCASP optical particle
    counter, channel 20(pa140_p160conc)
  • Particle concentration (0.14 um < Dp < 0.16 um) from PMS PCASP optical particle
    counter, channel 3(pa14_p16conc)
  • Particle concentration from Condensation Particle Counter(CPCPartConc)
  • TSINephTin_LRH
  • Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
  • Particle concentration (1.60 um < Dp < 1.80 um) from PMS PCASP optical particle
    counter, channel 21(pa160_p180conc)
  • Particle concentration (3.50 um < Dp < 4.00 um) from PMS PCASP optical particle
    counter, channel 27(pa350_p400conc)
  • Particle concentration (0.23 um < Dp < 0.26 um) from PMS PCASP optical particle
    counter, channel 7(pa23_p26conc)
  • Absorption coefficient at 1 um(Bap_I_1um)
  • TSINephTSamp_LRH
  • Particle concentration (4.00 um < Dp < 5.00 um) from PMS PCASP optical particle
    counter, channel 28(pa400_p500conc)
  • Particle concentration (0.60 um < Dp < 0.70 um) from PMS PCASP optical particle
    counter, channel 14(pa60_p70conc)
  • Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
  • Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
  • Particle concentration (0.26 um < Dp < 0.30 um) from PMS PCASP optical particle
    counter, channel 8(pa26_p30conc)
  • TSINephPres_LRH
  • Particle concentration (1.80 um < Dp < 2.00 um) from PMS PCASP optical particle
    counter, channel 22(pa180_p200conc)
  • Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
  • Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
  • Particle concentration (6.50 um < Dp < 8.00 um) from PMS PCASP optical particle
    counter, channel 30(pa650_p800conc)
  • Particle concentration (0.30 um < Dp < 0.35 um) from PMS PCASP optical particle
    counter, channel 9(pa30_p35conc)
  • Particle concentration (0.16 um < Dp < 0.18 um) from PMS PCASP optical particle
    counter, channel 4(pa16_p18conc)
  • TSINephPres_HRH
  • Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
  • SampTemp
  • HGdownstream_RH
  • SampRH
  • Ozone concentration(Ozone)
  • Neph530Temp
  • Particle concentration (Dp > 10 um) from PMS PCASP optical particle counter,
    channel 0(Pa1000Conc)
  • Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
  • Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
  • Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
  • Particle concentration (0.10 um < Dp < 0.12 um) from PMS PCASP optical particle
    counter, channel 1(pa10_p12conc)
  • Particle concentration (5.00 um < Dp < 6.50 um) from PMS PCASP optical particle
    counter, channel 29(pa500_p650conc)
  • Particle concentration (2.60 um < Dp < 3.00 um) from PMS PCASP optical particle
    counter, channel 25(pa260_p300conc)
  • AmbTemp
  • HGupstream_T
  • Particle concentration (0.40 um < Dp < 0.45 um) from PMS PCASP optical particle
    counter, channel 11(pa40_p45conc)
  • Particle concentration (0.90 um < Dp < 1.00 um) from PMS PCASP optical particle
    counter, channel 17(pa90_p100conc)
  • Particle concentration (0.12 um < Dp < 0.14 um) from PMS PCASP optical particle
    counter, channel 2(pa12_p14conc)
  • Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
  • Particle concentration (8.00 um < Dp < 10.00 um) from PMS PCASP optical particle
    counter, channel 31(pa800_p1000conc)
  • Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
  • Particle concentration (1.30 um < Dp < 1.40 um) from PMS PCASP optical particle
    counter, channel 19(pa130_p140conc)
  • Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
  • Particle concentration (0.18 um < Dp < 0.20 um) from PMS PCASP optical particle
    counter, channel 5(pa18_p20conc)
  • Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
  • Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)
  • TSINephTin_HRH
  • Particle concentration (0.80 um < Dp < 0.90 um) from PMS PCASP optical particle
    counter, channel 16(pa80_p90conc)
  • Particle concentration (0.35 um < Dp < 0.40 um) from PMS PCASP optical particle
    counter, channel 10(pa35_p40conc)

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DQRID : D980528.1
Start DateStart TimeEnd DateEnd Time
06/09/1999082407/26/19992205
09/08/2000042610/13/20001630
07/01/1997093607/03/19971556
08/01/1997132908/08/19971348
05/05/1998092606/16/19981505
05/17/2002060205/20/20051847
05/23/2002201105/31/20021258
09/09/2002000010/07/20021905
Subject:
SGP/AOS/C1 - Optical Particle Counter (PCASP-X) down
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
The AOS Optical Particle Spectrometer (PCASP-X sizing probe) was down during these 
periods.  This lowers the laser reference voltage and results in inaccurate sizing.
Measurements:sgpaosC1.a0:
  • Particle concentration (0.50 um < Dp < 0.60 um) from PMS PCASP optical particle
    counter, channel 13(pa50_p60conc)
  • Particle concentration (1.80 um < Dp < 2.00 um) from PMS PCASP optical particle
    counter, channel 22(pa180_p200conc)
  • Particle concentration (6.50 um < Dp < 8.00 um) from PMS PCASP optical particle
    counter, channel 30(pa650_p800conc)
  • Particle concentration (2.00 um < Dp < 2.30 um) from PMS PCASP optical particle
    counter, channel 23(pa200_p230conc)
  • Particle concentration (0.30 um < Dp < 0.35 um) from PMS PCASP optical particle
    counter, channel 9(pa30_p35conc)
  • Particle concentration (0.16 um < Dp < 0.18 um) from PMS PCASP optical particle
    counter, channel 4(pa16_p18conc)
  • Particle concentration (2.30 um < Dp < 2.60 um) from PMS PCASP optical particle
    counter, channel 24(pa230_p260conc)
  • Particle concentration (3.00 um < Dp < 3.50 um) from PMS PCASP optical particle
    counter, channel 26(pa300_p350conc)
  • Particle concentration (0.70 um < Dp < 0.80 um) from PMS PCASP optical particle
    counter, channel 15(pa70_p80conc)
  • Particle concentration (1.00 um < Dp < 1.30 um) from PMS PCASP optical particle
    counter, channel 18(pa100_p130conc)
  • Particle concentration (0.20 um < Dp < 0.23 um) from PMS PCASP optical particle
    counter, channel 6(pa20_p23conc)
  • Particle concentration (Dp > 10 um) from PMS PCASP optical particle counter,
    channel 0(Pa1000Conc)
  • Particle concentration (0.45 um < Dp < 0.50 um) from PMS PCASP optical particle
    counter, channel 12(pa45_p50conc)
  • Particle concentration (5.00 um < Dp < 6.50 um) from PMS PCASP optical particle
    counter, channel 29(pa500_p650conc)
  • Particle concentration (0.10 um < Dp < 0.12 um) from PMS PCASP optical particle
    counter, channel 1(pa10_p12conc)
  • Particle concentration (2.60 um < Dp < 3.00 um) from PMS PCASP optical particle
    counter, channel 25(pa260_p300conc)
  • Particle concentration (1.40 um < Dp < 1.60 um) from PMS PCASP optical particle
    counter, channel 20(pa140_p160conc)
  • Particle concentration (0.14 um < Dp < 0.16 um) from PMS PCASP optical particle
    counter, channel 3(pa14_p16conc)
  • Particle concentration (0.40 um < Dp < 0.45 um) from PMS PCASP optical particle
    counter, channel 11(pa40_p45conc)
  • Particle concentration (0.90 um < Dp < 1.00 um) from PMS PCASP optical particle
    counter, channel 17(pa90_p100conc)
  • Particle concentration (1.60 um < Dp < 1.80 um) from PMS PCASP optical particle
    counter, channel 21(pa160_p180conc)
  • Particle concentration (3.50 um < Dp < 4.00 um) from PMS PCASP optical particle
    counter, channel 27(pa350_p400conc)
  • Particle concentration (0.12 um < Dp < 0.14 um) from PMS PCASP optical particle
    counter, channel 2(pa12_p14conc)
  • Particle concentration (0.23 um < Dp < 0.26 um) from PMS PCASP optical particle
    counter, channel 7(pa23_p26conc)
  • Particle concentration (8.00 um < Dp < 10.00 um) from PMS PCASP optical particle
    counter, channel 31(pa800_p1000conc)
  • Particle concentration (1.30 um < Dp < 1.40 um) from PMS PCASP optical particle
    counter, channel 19(pa130_p140conc)
  • Particle concentration (4.00 um < Dp < 5.00 um) from PMS PCASP optical particle
    counter, channel 28(pa400_p500conc)
  • Particle concentration (0.18 um < Dp < 0.20 um) from PMS PCASP optical particle
    counter, channel 5(pa18_p20conc)
  • Particle concentration (0.60 um < Dp < 0.70 um) from PMS PCASP optical particle
    counter, channel 14(pa60_p70conc)
  • Particle concentration (0.26 um < Dp < 0.30 um) from PMS PCASP optical particle
    counter, channel 8(pa26_p30conc)
  • Particle concentration (0.80 um < Dp < 0.90 um) from PMS PCASP optical particle
    counter, channel 16(pa80_p90conc)
  • Particle concentration (0.35 um < Dp < 0.40 um) from PMS PCASP optical particle
    counter, channel 10(pa35_p40conc)
sgpaosauxC1.a0:
  • OPCFlow
  • OPCSheath
  • OPCLaserVolt

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DQRID : D990611.1
Start DateStart TimeEnd DateEnd Time
05/07/1999155605/14/19991445
Subject:
SGP/AOS/C1 - Ozone Instrument Failure
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
A malfunction occurred with the AOS surface ozone instrument during the period 990507 1556 
GMT to 990514 1445 GMT.  The instrument reported an ozone concentration of 9.91e-01 ppm 
(991 ppb) continuously during this time.  Quality checking of the data the following week 
revealed that the problem began at about the time weekly maintenance check was made on 
Friday.  The problem continued until the next weekly maintenance check was done.  Site Ops 
was notified by the mentor of the problem on Friday, 5/14/99, and a technician was sent 
to inspect the system.  No switches on the instrument front panel were found in the wrong 
position (for example, if the instrument was inadvertantly left in a calibration mode).  
By the time the technician arrived at the trailer, the instrument appeared to be working 
correctly.  No explanation is given as to why these erroneous values were being 
generated by the ozone instrument, except that possibly it locked up with the throwing of the 
weekly preventative maintenance switch and this problem was not corrected until the same 
switch was thrown the following week.
Measurements:sgpaosC1.a0:
  • Ozone concentration(Ozone)
sgpaosauxC1.a0:
  • O3_SetPt
  • O3_Span
  • O3_Cont
  • O3_Press
  • O3_LinHeater
  • O3_Offset
  • O3_LinTemp
  • O3_Mode
  • O3_Temp
  • O3_Spn
  • O3_Samp
  • O3_Zro

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DQRID : D990614.1
Start DateStart TimeEnd DateEnd Time
05/21/1999141305/27/19991819
Subject:
SGP/AOS/C1 - Invalid absorption data
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
During the period noted, a valve position error with the 1-um/10-um impactor switching 
valve occurred.  The result of this error was to invalidate all switched data.  The software 
correctly inserted missing value codes in the nephelometer data, but the PSAP light 
absorption photometer for some reason reported a constant value over this period.
Measurements:sgpaosC1.a0:
  • Absorption coefficient at 1 um(Bap_I_1um)
  • Absorption coefficient at 10 um(Bap_I_10um)
sgpaosauxC1.a0:
  • BapRef
  • BapFlow
  • BapSignal
  • BapFiltr

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DQRID : D990618.1
Start DateStart TimeEnd DateEnd Time
05/21/1999134805/27/19991822
Subject:
SGP/AOS/C1 - Incorrect absorption and scattering data
DataStreams:sgpaosC1.a0
Description:
The electronically switched valve that alternately switches flow through 1-um and 10-um 
impactors showed an error during this time period.  This error invalidated all downstream 
data.  In the raw data files, aerosol light scattering coefficients for the TSI reference 
and humidified nephelometers were assigned missing value codes.  The aerosol light 
absorption coefficient was observed to stick at a constant value over this period.  The problem 
went away after the weekly maintenance was performed, although nothing specific was done 
to the valve.  The flipping of the maintenance switch appears to have solved the problem.
Measurements:sgpaosC1.a0:
  • Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
  • Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
  • Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
  • Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
  • Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
  • Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
  • Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
  • Absorption coefficient at 10 um(Bap_I_10um)
  • Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
  • Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
  • Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
  • Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
  • Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
  • Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
  • Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
  • Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
  • Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
  • Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
  • Absorption coefficient at 1 um(Bap_I_1um)
  • Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
  • Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
  • Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
  • Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
  • Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
  • Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
  • Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)

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DQRID : D990809.1
Start DateStart TimeEnd DateEnd Time
06/25/1999163006/28/19991343
06/18/1999162806/22/19991537
Subject:
SGP/AOS/C1 - Ozone instrument error
DataStreams:sgpaosauxC1.a0, sgpaosC1.a0
Description:
A switch on the front panel of the ozone instrument was left in the wrong position.  This 
resulted in a bad value for ozone concentration being logged for these periods.
Measurements:sgpaosC1.a0:
  • Ozone concentration(Ozone)
sgpaosauxC1.a0:
  • O3_SetPt
  • O3_Span
  • O3_Cont
  • O3_Press
  • O3_LinHeater
  • O3_Offset
  • O3_LinTemp
  • O3_Mode
  • O3_Temp
  • O3_Spn
  • O3_Samp
  • O3_Zro

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END OF DATA