DQRID : D980528.10
Start DateStart TimeEnd DateEnd Time
12/12/1997202312/15/19971834
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Subject:
SGP/AOS/C1 - Instrument communications problems
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
Several of the AOS instruments apparently lost communications with the AOS computer during 
this period.  These instruments were the TSI 3-wavelength nephelometer, the PSAP light 
absorption photometer, and the Dasibi ozone instrument.
Suggestions: 
Measurements:sgpaosauxC1.a0:  
  • TSI High RH Neph. 450 nm back scattering coefficient for zero gas(BluBScatZero_HRH)
  • TSI Low RH Neph. 550 nm rayleigh scattering coefficient for zero gas(GrnRScatZero_LRH)
  • TSI Low RH Neph. lamp voltage(TSINephLV_LRH)
  • TSI Low RH Neph. 450 nm back scattering coefficient for zero gas(BluBScatZero_LRH)
  • TSI High RH Neph. 550 nm rayleigh scattering coefficient for zero gas(GrnRScatZero_HRH)
  • TSI High RH Neph. lamp voltage(TSINephLV_HRH)
  • Ozone line temperature set point(O3_SetPt)
  • Ozone mode(O3_Mode)
  • TSI Low RH Neph. 550 nm total scattering coefficient for zero gas(GrnTScatZero_LRH)
  • TSI High RH Neph. 450 nm total scattering coefficient for cal. gas(BluTScatSpn_HRH)
  • TSI High RH Neph. 550 nm total scattering coefficient for zero gas(GrnTScatZero_HRH)
  • TSI Low RH Neph. 700 nm back scattering coefficient for cal. gas(RedBScatSpn_LRH)
  • Ozone offset value(O3_Offset)
  • TSI High RH Neph. 700 nm total scattering coefficient for zero gas(RedTScatZero_HRH)
  • TSI High RH Neph. lamp current(TSINephLC_HRH)
  • TSI High RH Neph. 700 nm back scattering coefficient for cal. gas(RedBScatSpn_HRH)
  • TSI Low RH Neph. 700 nm total scattering coefficient for zero gas(RedTScatZero_LRH)
  • TSI Low RH Neph. lamp current(TSINephLC_LRH)
  • Ozone line temp. from thermocouple attached to heater(O3_LinHeater)
  • Ozone span value(O3_Span)
  • CLAP reference signal(BapRef)
  • TSI High RH Neph. 450 nm rayleigh scattering coefficient for zero gas(BluRScatZero_HRH)
  • TSI Low RH Neph. 550 nm total scattering coefficient for cal. gas(GrnTScatSpn_LRH)
  • TSI High RH Neph. 550 nm back scattering coefficient for cal. gas(GrnBScatSpn_HRH)
  • CLAP Signal(BapSignal)
  • TSI Low RH Neph. 450 nm rayleigh scattering coefficient for zero gas(BluRScatZero_LRH)
  • TSI Low RH Neph. 450 nm back scattering coefficient for cal. gas(BluBScatSpn_LRH)
  • TSI Low RH Neph. 550 nm back scattering coefficient for cal. gas(GrnBScatSpn_LRH)
  • TSI High RH Neph. 550 nm total scattering coefficient for cal. gas(GrnTScatSpn_HRH)
  • TSI Low RH Neph. 700 nm rayleigh scattering coefficient for zero gas(RedRScatZero_LRH)
  • Transmittance through CLAP filter(BapFiltr)
  • TSI High RH Neph. 700 nm rayleigh scattering coefficient for zero gas(RedRScatZero_HRH)
  • CLAP flow(BapFlow)
  • TSI neph. rack temperature(CabinetTemp)
  • TSI High RH Neph. 450 nm back scattering coefficient for cal. gas(BluBScatSpn_HRH)
  • TSI High RH Neph. 550nm reference intensity(TSISensGrn_HRH)
  • Pressure difference across TSI neph.(Line8DeltaP)
  • unknown(O3_Cont)
  • TSI Low RH Neph. 550nm reference intensity(TSISensGrn_LRH)
  • Ozone sample frequency(O3_Samp)
  • TSI High RH Neph. 700 nm total scattering coefficient for cal. gas(RedTScatSpn_HRH)
  • TSI Low RH Neph. 700 nm back scattering coefficient for zero gas(RedBScatZero_LRH)
  • TSI Low RH Neph. 700 nm total scattering coefficient for cal. gas(RedTScatSpn_LRH)
  • Ozone zero concentration(O3_Zro)
  • TSI High RH Neph. 700 nm back scattering coefficient for zero gas(RedBScatZero_HRH)
  • TSI High RH Neph. 450 nm total scattering coefficient for zero gas(BluTScatZero_HRH)
  • Ozone line sample temperature (omega temp. sensor)(O3_LinTemp)
  • TSI Low RH Neph. 450 nm total scattering coefficient for zero gas(BluTScatZero_LRH)
  • Ozone sample pressure(O3_Press)
  • TSI Low RH Neph. 550 nm back scattering coefficient for zero gas(GrnBScatZero_LRH)
  • Ozone sample temperature(O3_Temp)
  • TSI High RH Neph. 550 nm back scattering coefficient for zero gas(GrnBScatZero_HRH)
  • Ozone span concentration(O3_Spn)
  • TSI Low RH Neph. 450 nm total scattering coefficient for cal. gas(BluTScatSpn_LRH)
more

sgpaosC1.a0:  
  • TSI High RH Neph. relative humidity(TSINephRHSamp_HRH)
  • TSI Low RH Neph. 550 nm backscat. coef. at 1 um(GrnBScatCoef_1um_LRH)
  • TSI High RH Neph. inlet temperature(TSINephTin_HRH)
  • TSI Low RH Neph. 550 nm total scat. coef. at 10 um(GrnTScatCoef_10um_LRH)
  • TSI Low RH Neph. relative humidity(TSINephRHSamp_LRH)
  • TSI Low RH Neph. 700 nm backscat. coef. at 1 um(RedBScatCoef_1um_LRH)
  • TSI Low RH Neph. 700 nm total scat. coef. at 10 um(RedTScatCoef_10um_LRH)
  • TSI High RH Neph. 700 nm backscat. coef. at 10 um(RedBScatCoef_10um_HRH)
  • TSI High RH Neph. 700 nm backscat. coef. at 1 um(RedBScatCoef_1um_HRH)
  • TSI Low RH Neph. inlet temperature(TSINephTin_LRH)
  • 1 um Absorption coefficient(Bap_I_1um)
  • TSI Low RH Neph. Sample Temperature(TSINephTSamp_LRH)
  • TSI Low RH Neph. 550 nm backscat. coef. at 10 um(GrnBScatCoef_10um_LRH)
  • TSI High RH Neph. Sample Temperature(TSINephTSamp_HRH)
  • TSI High RH Neph. 550 nm backscat. coef. at 10 um(GrnBScatCoef_10um_HRH)
  • TSI High RH Neph. 700 nm total scat. coef. at 10 um(RedTScatCoef_10um_HRH)
  • TSI High RH Neph. 550 nm backscat. coef. at 1 um(GrnBScatCoef_1um_HRH)
  • TSI Low RH Neph. 450 nm backscat. coef. at 1 um(BluBScatCoef_1um_LRH)
  • TSI High RH Neph. 450 nm backscat. coef. at 1 um(BluBScatCoef_1um_HRH)
  • 10 um Absorption coefficient(Bap_I_10um)
  • TSI High RH Neph. 450 nm total scat. coef. at 1 um(BluTScatCoef_1um_HRH)
  • Ozone concentration(Ozone)
  • TSI Low RH Neph. 450 nm total scat. coef. at 1 um(BluTScatCoef_1um_LRH)
  • TSI High RH Neph. Pressure(TSINephPres_HRH)
  • TSI Low RH Neph. Pressure(TSINephPres_LRH)
  • TSI Low RH Neph. 550 nm total scat. coef. at 1 um(GrnTScatCoef_1um_LRH)
  • TSI High RH Neph. 450 nm total scat. coef. at 10 um(BluTScatCoef_10um_HRH)
  • TSI High RH Neph. 550 nm total scat. coef. at 1 um(GrnTScatCoef_1um_HRH)
  • TSI Low RH Neph. 700 nm total scat. coef. at 1 um(RedTScatCoef_1um_LRH)
  • TSI High RH Neph. 700 nm total scat. coef. at 1 um(RedTScatCoef_1um_HRH)
  • TSI Low RH Neph. 450 nm total scat. coef. at 10 um(BluTScatCoef_10um_LRH)
  • TSI Low RH Neph. 700 nm backscat. coef. at 10 um(RedBScatCoef_10um_LRH)
  • TSI High RH Neph. 550 nm total scat. coef. at 10 um(GrnTScatCoef_10um_HRH)
  • TSI Low RH Neph. 450 nm backscat. coef. at 10 um(BluBScatCoef_10um_LRH)
  • TSI High RH Neph. 450 nm backscat. coef. at 10 um(BluBScatCoef_10um_HRH)
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