Data Quality Reports for Session: 179599 User: shig1 Completed: 09/13/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D120420.5SGP/QCRAD/C1 - Sensor cable problemsgpqcradbeflux1longC1.s2Incorrect


DQRID : D120420.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/03/2007140004/22/20082052Incorrect
Subject:
SGP/QCRAD/C1 - Sensor cable problem
DataStreams:sgpqcradbeflux1longC1.s2
Description:
Beginning October 3, 2007, the upwelling longwave irradiance (up_long_hemisp, aka "UIR") 
started to spike to unreasonable values positively offset from the co-located E13 by over 
100W/m2.  On January 17 2008 the UIR values become consistently bad due to bad UIR dome 
thermistor wiring.  Problem appears as a resistive offset in the dome thermistor but due 
to nature of failure (unknown cable problem) data correction would not yield any better 
data than the co-located E13 UIR instrument that is known to be operating correctly. 
Instrument cable replacement on 4/22 fixed the problem.

Thermopile data (netIR) from this instrument is good.  However, incoming irradiance data 
is not correctable due to bad UIR dome thermistor wiring within the instrument cable. 

Documented in instrument DQR D071022.4.
Measurements:sgpqcradbeflux1longC1.s2:
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)

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