DQRs for Session: 139905 User:anderbergCompleted: 01-18-2012

Data Quality Reports for Session: 139905 User: anderberg Completed: 01/18/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D110804.1	SGP/SIRS/E6 - Bad upwelling long_wave hemisp	sgpsirsE6.b1, sgpsirs20sE6.a0
D110902.3	SGP/SIRS/E20 - Downwelling LW incorrect	sgpsirsE20.b1, sgpsirs20sE20.a0
D111115.3	SGP/SIRS/E13 - Intermittent upwelling longwave	sgpsirsE13.b1, sgpsirs20sE13.a0
D111202.1	SGP/SIRS/C1 - NIP Failure	sgpsirsC1.b1, sgpsirs20sC1.a0

DQRID : D110804.1

Start Date	Start Time	End Date	End Time
04/09/2011	0118	07/19/2011	1800

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 : D110902.3

Start Date	Start Time	End Date	End Time
06/16/2011	2100	07/13/2011	1811

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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DQRID : D111115.3

Start Date	Start Time	End Date	End Time
09/19/2011	1512	10/27/2011	1559

Subject:	SGP/SIRS/E13 - Intermittent upwelling longwave
DataStreams:	sgpsirsE13.b1, sgpsirs20sE13.a0
Description:	Beginning 9/19/2011 @ 15:12, the upwelling longwave values are often spiking to large and small values throughout the day. A multiplexer was found to be the problem and the ops replaced it on 10/27/2011. Incorrect data are not recoverable for the specified time range. However, good data exists within the time range. The SGPQCRAD VAP data stream provides flags for "good" data and appears to accurately flag bad data during this time range. Users are advised to use this data stream to screen for correct up_long_hemisp values.
Measurements:	sgpsirs20sE13.a0: inst_up_long_case_resist inst_up_long_hemisp_tp inst_up_long_dome_resist sgpsirsE13.b1: up_long_hemisp_std inst_up_long_case_temp Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) inst_up_long_dome_temp Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)

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DQRID : D111202.1

Start Date	Start Time	End Date	End Time
08/16/2011	2144	08/25/2011	1435

Subject:	SGP/SIRS/C1 - NIP Failure
DataStreams:	sgpsirsC1.b1, sgpsirs20sC1.a0
Description:	The short_direct_normal (NIP instrument) cable failed (broken wire in NIP connector) during this time period. Data are not recoverable. 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:	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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