Data Quality Reports for Session: 139904 User: anderberg Completed: 01/18/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110613.2SGP/SIRS/E15 - NIP failuresgpsirsE15.b1, sgpsirs20sE15.a0
D110628.2SGP/SIRS/C1 - NIP failuresgpsirsC1.b1, sgpsirs20sC1.a0
D110725.2SGP/SIRS/E13 - NIP damaged by lightning strikesgpsirsE13.b1, sgpsirs20sE13.a0
D110804.1SGP/SIRS/E6 - Bad upwelling long_wave hemispsgpsirsE6.b1, sgpsirs20sE6.a0
D110805.1SGP/SIRS/E10 - MUX failuresgpsirsE10.b1, sgpsirs20sE10.a0
D110805.2SGP/SIRS/E20 - Upwelling LW incorrectsgpsirsE20.b1, sgpsirs20sE20.a0
D110902.3SGP/SIRS/E20 - Downwelling LW incorrectsgpsirsE20.b1, sgpsirs20sE20.a0


DQRID : D110613.2
Start DateStart TimeEnd DateEnd Time
03/11/2011190005/02/20111513
06/17/2011110006/28/20111600
Subject:
SGP/SIRS/E15 - NIP failure
DataStreams:sgpsirsE15.b1, sgpsirs20sE15.a0
Description:
The short_direct_normal (NIP instrument) cable failed during this time period.  Data are 
not recoverable.

Users can derive an estimate of direct normal values using the following formula:
short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:sgpsirs20sE15.a0:
  • inst_direct_normal
sgpsirsE15.b1:
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)

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DQRID : D110628.2
Start DateStart TimeEnd DateEnd Time
06/12/2011000006/24/20111740
Subject:
SGP/SIRS/C1 - NIP failure
DataStreams:sgpsirsC1.b1, sgpsirs20sC1.a0
Description:
The short_direct_normal (NIP instrument) cable failed during this time period.	Data are 
not recoverable.

Users can derive an estimate of direct normal values using the following formula:
short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:sgpsirs20sC1.a0:
  • inst_direct_normal
sgpsirsC1.b1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)

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DQRID : D110725.2
Start DateStart TimeEnd DateEnd Time
06/12/2011053906/14/20111556
Subject:
SGP/SIRS/E13 - NIP damaged by lightning strike
DataStreams:sgpsirsE13.b1, sgpsirs20sE13.a0
Description:
Apparent lightning strike in the instrument cluster area resulted in a failed NIP. The 
SIRS was due for calibration change outs so the US, DS, DD and NIP were replaced. The 
updated program was loaded at approximately 1730 GMT.

An estimate of direct normal values can be derived using the following formula:

short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:sgpsirs20sE13.a0:
  • inst_direct_normal
sgpsirsE13.b1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)

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DQRID : D110804.1
Start DateStart TimeEnd DateEnd Time
04/09/2011011807/19/20111800
Subject:
SGP/SIRS/E6 - Bad upwelling long_wave hemisp
DataStreams:sgpsirsE6.b1, sgpsirs20sE6.a0
Description:
The upwelling longwave hemispheric (up_long_hemisp) values were intermittently missing or 
incorrect.  Sensor was replaced on 7/19 and the problem was resolved.
Measurements:sgpsirsE6.b1:
  • inst_up_long_case_temp
  • up_long_hemisp_std
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • inst_up_long_dome_temp
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
sgpsirs20sE6.a0:
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
  • inst_up_long_dome_resist

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DQRID : D110805.1
Start DateStart TimeEnd DateEnd Time
07/18/2010093306/22/20111713
Subject:
SGP/SIRS/E10 - MUX failure
DataStreams:sgpsirsE10.b1, sgpsirs20sE10.a0
Description:
Starting on 7/18/2010 there were periodic large dropouts in the downwelling shortwave 
hemipsheric data eventually leading to failures in all other SIRS data throughout the 
specified time range.   Subsequent and extensive corrective maintenance was ongoing until 
6/22/2011 when all measurement problems were resolved.  

Due to the extensive data disruption during this time range all data from this station is 
suspect.  

For shortwave datastreams,however, data review reveals that the VAP qcrad1longE10.c1 and 
s1 datastreams have accurately flagged and removed suspect shortwave data and provides the 
user the most accurate values available for short_direct_normal, down_short_diffuse and 
down_short_hemisp. 
The user is referred to the best estimate data in the s1 datastream.

Longwave data after 8/18/2010 1800GMT is known to be biased from 0 to +20 W/m2. The user 
is advised to not use the down_long_hemisp_shaded and up_long_hemisp datastreams in any 
form from 8/18/2010 to 6/22/2011.  The sgpqcradlong1E10 datastreams do not effectively flag 
potentially bad data.
Measurements:sgpsirsE10.b1:
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • inst_up_long_dome_temp
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • down_long_hemisp_shaded_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • up_short_hemisp_std
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • down_short_hemisp_std
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • down_short_diffuse_hemisp_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • up_long_hemisp_std
  • inst_down_long_shaded_dome_temp
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • inst_up_long_case_temp
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • inst_down_long_shaded_case_temp
sgpsirs20sE10.a0:
  • inst_down_long_shaded_case_resist
  • inst_up_long_dome_resist
  • inst_up_long_hemisp_tp
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)
  • inst_up_long_case_resist
  • inst_diffuse
  • inst_up_short_hemisp
  • inst_global
  • inst_down_long_shaded_dome_resist
  • inst_direct_normal

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DQRID : D110805.2
Start DateStart TimeEnd DateEnd Time
04/02/2011214206/15/20111900
Subject:
SGP/SIRS/E20 - Upwelling LW incorrect
DataStreams:sgpsirsE20.b1, sgpsirs20sE20.a0
Description:
The UIR signal (up_long_hemisp datastream) had connection and cabling problems during the 
time period specified.  Site ops personnel replaced the Multiplexer on 6/15/2011 at 19:00 
resolving the problem.
Measurements:sgpsirsE20.b1:
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • inst_up_long_case_temp
  • inst_up_long_dome_temp
  • up_long_hemisp_std
  • Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
sgpsirs20sE20.a0:
  • inst_up_long_case_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_dome_resist

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DQRID : D110902.3
Start DateStart TimeEnd DateEnd Time
06/16/2011210007/13/20111811
Subject:
SGP/SIRS/E20 - Downwelling LW incorrect
DataStreams:sgpsirsE20.b1, sgpsirs20sE20.a0
Description:
The downwelling longwave hemispheric shaded (down_long_hemisp_shaded ) values periodically 
were missing or incorrect. Connections on the Multiplexer were reseated on 7/13/2011 at 
18:11 resolving the problem.
Measurements:sgpsirsE20.b1:
  • inst_down_long_shaded_case_temp
  • inst_down_long_shaded_dome_temp
  • Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)
  • down_long_hemisp_shaded_std
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
sgpsirs20sE20.a0:
  • inst_down_long_shaded_case_resist
  • inst_down_long_shaded_dome_resist
  • Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)

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