Data Quality Reports for Session: 118127 User: sloehrer Completed: 03/12/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D071211.1SGP/SIRS/E19 - Reprocess: Incorrect calibration coefficientssgpsirs20sE19.a0, sgpsirsE19.b1
D071217.3SGP/SIRS/E22 - Tracker failuresgpsirs20sE22.a0, sgpsirsE22.b1
D071221.2SGP/SIRS/E18 - Instrument noise problemsgpsirs20sE18.a0, sgpsirsE18.b1
D080104.1SGP/SIRS/E13 - Multiplexer failuresgpsirs20sE13.a0, sgpsirsE13.b1
D080107.1SGP/SIRS/E16 - Loose connectionssgpsirs20sE16.a0, sgpsirsE16.b1
D080212.4SGP/SIRS/E18 - NIP condensation problemsgpsirs20sE18.a0, sgpsirsE18.b1
D080515.1SGP/SIRS/E20 - Intermittent missing datasgpsirs20sE20.a0, sgpsirsE20.b1
D080602.1SGP/SIRS/E22 - Tracker failuresgpsirs20sE22.a0, sgpsirsE22.b1
D080602.2SGP/SIRS/E21 - Failed Trackersgpsirs20sE21.a0, sgpsirsE21.b1
D080610.1SGP/SIRS/E20 - Missing datasgpsirs20sE20.a0, sgpsirsE20.b1
D080626.1SGP/SIRS/E18 - Ventilator Fan Failuresgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1
D080627.1SGP/SIRS/E21 - Ventilator Fan Failuresgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
D080722.1SGP/SIRS/E21 - Tracker inoperativesgpsirs20sE21.a0, sgpsirsE21.b1
D081023.2SGP/SIRS/E16 - Direct normal instrument failuresgpsirs20sE16.a0, sgpsirsE16.b1
D081029.2SGP/SIRS/E11 - Instrument multiplexer failuresgpsirs20sE11.a0, sgpsirsE11.b1


DQRID : D071211.1
Start DateStart TimeEnd DateEnd Time
10/13/2007000001/04/20081645
Subject:
SGP/SIRS/E19 - Reprocess: Incorrect calibration coefficients
DataStreams:sgpsirs20sE19.a0, sgpsirsE19.b1
Description:
Sometime on 10/13 the SIRS datalogger reverted to the old program used for the previous 
set of coefficients (i.e. before the scheduled 9/13 shortwave instrument swapout).  
Coefficients were such that the program change didn't result in easily discernable changes in 
the data. The longwave instruments were not affected.
The Coefficients applied during this time were as follows (marked "Incorrect"):
Incorrect    "Diffuse PSP: 106.83 W/(m^2*mV)\n",
Correct      "Diffuse PSP: 113.35 W/(m^2*mV)\n",
Incorrect    "PSP-US:      119.40 W/(m^2*mV)\n",
Correct      "PSP-US:      117.97 W/(m^2*mV)\n",
Incorrect    "NIP:         120.41 W/(m^2*mV)\n",
Correct      "NIP:         121.72 W/(m^2*mV)\n",
Incorrect    "PSP-DS:      120.26 W/(m^2*mV)\n",
Correct      "PSP-DS:      122.52 W/(m^2*mV)\n",

Shortwave data can be corrected by dividing by "Incorrect" coefficient and multiplying 
"Correct" coefficient.  (e.g. down_short_diffuse_hemisp(cor) = 
down_short_diffuse_hemisp*(113.35/106.83))
Measurements:sgpsirsE19.b1:
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
sgpsirs20sE19.a0:
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)

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DQRID : D071217.3
Start DateStart TimeEnd DateEnd Time
12/09/2007000012/19/20072009
01/08/2008000001/16/20081830
Subject:
SGP/SIRS/E22 - Tracker failure
DataStreams:sgpsirs20sE22.a0, sgpsirsE22.b1
Description:
The E22 tracker failed during the specified time periods.  Power cycling the tracker 
restored normal operation both times.  Adversely affected instruments are the 
down_short_diffuse (8-48) and short_direct_normal (NIP).
Measurements:sgpsirs20sE22.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE22.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)

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DQRID : D071221.2
Start DateStart TimeEnd DateEnd Time
05/12/2007103001/02/20082240
Subject:
SGP/SIRS/E18 - Instrument noise problem
DataStreams:sgpsirs20sE18.a0, sgpsirsE18.b1
Description:
Starting May 12th 2007 DIR experiencing persistent, intermittent data dropouts and noise.  
PM found a damaged PIR cable and repaired 01/02/08 2240GMT. 

Noise seems to be unbiased and dropouts are beyond QC limits making QC flags a possible 
option in filtering for good data. However, using data during this period is not 
recommended.
Measurements:sgpsirsE18.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
sgpsirs20sE18.a0:
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)

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DQRID : D080104.1
Start DateStart TimeEnd DateEnd Time
12/27/2007190001/07/20081525
Subject:
SGP/SIRS/E13 - Multiplexer failure
DataStreams:sgpsirs20sE13.a0, sgpsirsE13.b1
Description:
The down_short_hemisp (PSP), down_long_hemisp_shaded (DIR) and up_long_hemisp (UIR) 
experienced frequent dropouts due to a failing multiplexer.  CM replaced mux on 1/7.
Measurements:sgpsirsE13.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_case_temp)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
sgpsirs20sE13.a0:
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)

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DQRID : D080107.1
Start DateStart TimeEnd DateEnd Time
12/18/2007200001/16/20081745
Subject:
SGP/SIRS/E16 - Loose connections
DataStreams:sgpsirs20sE16.a0, sgpsirsE16.b1
Description:
The down_short_hemisp (PSP), up_long_hemisp (PIR) and down_long_hemisp_shaded (PIR) start 
dropping out 12/18 and eventually go missing at 19:05 GMT on 1/03/08.  Problem is diurnal 
but inconsistent. PM found a loose power cable on the mux and repaired on 1/16 1745. 

Missing data are not recoverable. However, during the initial period of infrequent missing 
data from 12/18 to 1/3/08 the user can potentially rely on DQ flags to exclude poor data 
instead of the entire data set.
Measurements:sgpsirsE16.b1:
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_case_temp)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
sgpsirs20sE16.a0:
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)

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DQRID : D080212.4
Start DateStart TimeEnd DateEnd Time
01/30/2008000002/26/20082150
Subject:
SGP/SIRS/E18 - NIP condensation problem
DataStreams:sgpsirs20sE18.a0, sgpsirsE18.b1
Description:
NIP at E18 was measuring impossible values due to condensation on inside of NIP window.  
PM replaced NIP 2/26/2008 2150.

Measured data are not recoverable.  Use component sum method to reconstruct NIP data.  NIP 
= (Global-Diffuse)/cos(ZA)
Measurements:sgpsirs20sE18.a0:
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE18.b1:
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)

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DQRID : D080515.1
Start DateStart TimeEnd DateEnd Time
03/04/2008000005/04/20082359
Subject:
SGP/SIRS/E20 - Intermittent missing data
DataStreams:sgpsirs20sE20.a0, sgpsirsE20.b1
Description:
Data are intermittent during the time period specified.  Missing data are not recoverable. 
 Available data are satisfactory.
Measurements:sgpsirsE20.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Time offset of tweaks from base_time(time_offset)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Dummy altitude for Zeb(alt)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • lon(lon)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Battery Voltage(vBatt)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • lat(lat)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • base time(base_time)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_case_temp)
sgpsirs20sE20.a0:
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)
  • Time offset of tweaks from base_time(time_offset)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Dummy altitude for Zeb(alt)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
  • lat(lat)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • lon(lon)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • base time(base_time)
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)

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DQRID : D080602.1
Start DateStart TimeEnd DateEnd Time
05/27/2008154006/04/20081825
06/06/2008110006/19/20081716
Subject:
SGP/SIRS/E22 - Tracker failure
DataStreams:sgpsirs20sE22.a0, sgpsirsE22.b1
Description:
During the time ranges specified the SIRS solar tracker had failed for unspecified 
reasons.  Measurements of short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) are 
incorrect and not recoverable. Longwave data are unaffected.
Measurements:sgpsirs20sE22.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE22.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)

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DQRID : D080602.2
Start DateStart TimeEnd DateEnd Time
05/27/2008130005/31/20081715
06/09/2008003006/10/20081900
Subject:
SGP/SIRS/E21 - Failed Tracker
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.b1
Description:
During the time ranges specified the SIRS solar tracker had failed for unspecified 
reasons.  Measurements of short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) will be 
incorrect and not recoverable.  Longwave data are unaffected.
Measurements:sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

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DQRID : D080610.1
Start DateStart TimeEnd DateEnd Time
01/24/2003130201/28/20031949
01/30/2003022602/05/20031951
07/11/2003000207/15/20032001
05/18/2005213205/26/20051827
05/27/2005000005/31/20050646
12/10/2007180312/13/20071850
04/17/2008224604/23/20081440
05/04/2008182305/17/20081447
Subject:
SGP/SIRS/E20 - Missing data
DataStreams:sgpsirs20sE20.a0, sgpsirsE20.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpsirsE20.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Time offset of tweaks from base_time(time_offset)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Dummy altitude for Zeb(alt)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • lon(lon)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Battery Voltage(vBatt)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • lat(lat)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • base time(base_time)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_case_temp)
sgpsirs20sE20.a0:
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)
  • Time offset of tweaks from base_time(time_offset)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Dummy altitude for Zeb(alt)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
  • lat(lat)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • lon(lon)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • base time(base_time)
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)

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DQRID : D080626.1
Start DateStart TimeEnd DateEnd Time
06/18/2008000006/30/20082110
Subject:
SGP/SIRS/E18 - Ventilator Fan Failure
DataStreams:sgpsirs20sE18.a0, sgpsirsE18.00, sgpsirsE18.b1
Description:
At the start time specified the PSP (down_short_hemisp) ventilator fan failed. PM replaced 
the fan 6/30/2008 2110.  Ventilator failure does adversely affect radiometer 
measurements but the extent has not been quantified.  Mentor suggests using component sum method 
detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + 
short_direct_normal * cos (zenith angle) for each time record.
Measurements:sgpsirs20sE18.a0:
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
sgpsirsE18.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
sgpsirsE18.00:
  • null(Raw data stream - documentation not supported)

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DQRID : D080627.1
Start DateStart TimeEnd DateEnd Time
08/01/2007000007/01/20081500
Subject:
SGP/SIRS/E21 - Ventilator Fan Failure
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1
Description:
Start time is uncertain due to length of time this problem existed.  During the time frame 
specified the PSP (down_short_hemisp) and 8-48 (down_short_diffuse_hemisp) ventilator 
fans failed. PM replaced the fans 7/1/2008 1500. 
Ventilator failure does adversely affect thermopile radiometer measurements but the extent 
has not been quantified. The 8-48 is significantly less affected than the PSP. Mentor 
suggests using component sum method detailed in SIRS
instrument handbook where down_short_hemisp = down_short_diffuse +
short_direct_normal * cos (zenith angle) for each time record.
Measurements:sgpsirsE21.00:
  • null(Raw data stream - documentation not supported)
sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)

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DQRID : D080722.1
Start DateStart TimeEnd DateEnd Time
07/19/2008232407/30/20081450
07/31/2008113008/13/20081545
08/15/2008163009/24/20081445
09/25/2008120010/21/20082150
Subject:
SGP/SIRS/E21 - Tracker inoperative
DataStreams:sgpsirs20sE21.a0, sgpsirsE21.b1
Description:
The solar tracker at this site had numerous failures over the time range of this DQR.  The 
result is non-recoverable data for any direct normal (NIP) or diffuse (8-48) broadband 
measurement.  Longwave data is generally unaffected by such failures.
Measurements:sgpsirs20sE21.a0:
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
sgpsirsE21.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)

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DQRID : D081023.2
Start DateStart TimeEnd DateEnd Time
10/22/2008075311/19/20081905
Subject:
SGP/SIRS/E16 - Direct normal instrument failure
DataStreams:sgpsirs20sE16.a0, sgpsirsE16.b1
Description:
The short_direct_normal/NIP data spiked a few times and then completely failed resulting 
in missing values (-9999) for this time period.  

The short_direct_normal data during this time period is not recoverable. However, it can 
be reconstructed using the following shortwave instrument relationship for each minute of 
data:

short_direct_normal = (down_short_hemisp - down_short_diffuse)/cos(zenith angle).
Measurements:sgpsirsE16.b1:
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
sgpsirs20sE16.a0:
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)

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DQRID : D081029.2
Start DateStart TimeEnd DateEnd Time
10/21/2008130010/21/20081800
10/22/2008000010/22/20082359
10/24/2008030010/24/20081200
10/26/2008010010/29/20081730
10/30/2008070010/30/20081030
11/04/2008230011/05/20080300
11/05/2008130011/06/20080200
11/06/2008180011/06/20082100
11/07/2008200011/08/20081200
11/08/2008190011/08/20082200
11/10/2008030011/10/20080600
12/02/2008170012/02/20081800
Subject:
SGP/SIRS/E11 - Instrument multiplexer failure
DataStreams:sgpsirs20sE11.a0, sgpsirsE11.b1
Description:
The down_short_hemisp, up_long_hemisp and down_long_hemisp were very noisy. The SIRS 
multiplexer wiring or mux itself was failing during this time.  Ops replaced the mux on 12/2.
Measurements:sgpsirsE11.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
    Deviation(down_long_hemisp_shaded_std)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_case_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_temp)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Standard
    Deviation(down_short_hemisp_std)
sgpsirs20sE11.a0:
  • Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_case_resist)
  • Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
    Voltage(inst_global)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
    Pyrgeometer(inst_down_long_shaded_dome_resist)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)

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END OF DATA