Data Quality Reports for Session: 131351 User: ekaterinaz Completed: 11/04/2010


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090509.1GRW/SKYRAD/M1 - Tracker inoperativegrwskyrad20sM1.a0, grwskyrad60sM1.b1
D090612.1GRW/SKYRAD/M1 - Reprocess: IRT configurationgrwskyrad60sM1.b1
D091111.4GRW/SKYRAD/M1 - IRT groundinggrwskyrad20sM1.a0, grwskyrad60sM1.b1


DQRID : D090509.1
Start DateStart TimeEnd DateEnd Time
05/08/2009140705/11/20090815
Subject:
GRW/SKYRAD/M1 - Tracker inoperative
DataStreams:grwskyrad20sM1.a0, grwskyrad60sM1.b1
Description:
The solar tracker arms were caught and pulled way out of alignment. Problem corrected by 
OPs at 0815Z May 11th.  All bolts tightened and alignment and tracking checked. 

Down_short_hemisp_diffuse (8-48 instrument)is incorrect and not recoverable. 
short_direct_normal (NIP instrument) is suspect during this time as well.  down_short_hemisp (PSP 
instrument) was unaffected.
Measurements:grwskyrad20sM1.a0:
  • inst_direct_normal
  • inst_diffuse

grwskyrad60sM1.b1:
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • down_short_diffuse_hemisp_std
  • short_direct_normal_std
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)


Back To Table of Contents

DQRID : D090612.1
Start DateStart TimeEnd DateEnd Time
05/20/2009224905/22/20091717
05/22/2009180506/11/20092001
Subject:
GRW/SKYRAD/M1 - Reprocess: IRT configuration
DataStreams:grwskyrad60sM1.b1
Description:
The SKYRAD IRT was used in testing a revised serial communication program. During the 
testing, the analog output configuration was to changed to default values (used at TWP and 
NSA sites) that are different than those used at AMF. So, the IRT's analog output was set 
to a scale of 25K/V and an offset of 213.2K but the logger converted the signal using a 
scale of 26K/V and an offset of 173.2K. 

The sky temperature measurements can be corrected as follows: 
Tnew = (25/26)(Told-173.2K)+213.2K
Measurements:grwskyrad60sM1.b1:
  • Temperature, Sky Infra-Red(sky_ir_temp)
  • sky_ir_temp_min
  • sky_ir_temp_max


Back To Table of Contents

DQRID : D091111.4
Start DateStart TimeEnd DateEnd Time
05/03/2009003005/05/20091300
Subject:
GRW/SKYRAD/M1 - IRT grounding
DataStreams:grwskyrad20sM1.a0, grwskyrad60sM1.b1
Description:
The IRT analog output line appears to have adversely affected the
SKYRAD datalogger grounding.  This resulted in intermittent anomalous readings across all 
SKYRAD datalogger channels including logger voltage.

The problem was corrected by regrounding the analog cable.
Measurements:grwskyrad20sM1.a0:
  • inst_down_long_hemisp2_case_resist
  • inst_down_long_hemisp1_dome_resist
  • inst_down_long_hemisp1_tp
  • inst_down_long_hemisp2_dome_resist
  • inst_global
  • inst_diffuse
  • inst_down_long_hemisp2_tp
  • inst_sky_ir_signal
  • inst_down_long_hemisp1_case_resist
  • inst_direct_normal

grwskyrad60sM1.b1:
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max)
  • inst_down_long_hemisp1_case_temp
  • short_direct_normal_std
  • sky_ir_temp_max
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • down_long_hemisp2_min
  • down_long_hemisp2_max
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp1)
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp2)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • Temperature, Sky Infra-Red(sky_ir_temp)
  • inst_down_long_hemisp2_tp
  • logger_temp
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • down_short_hemisp_std
  • down_short_diffuse_hemisp_std
  • inst_down_long_hemisp2_case_temp
  • sky_ir_temp_std
  • sky_ir_temp_min
  • inst_down_long_hemisp1_dome_temp
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • inst_down_long_hemisp1_tp
  • vBatt
  • down_long_hemisp2_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • inst_down_long_hemisp2_dome_temp
  • down_long_hemisp1_std
  • down_long_hemisp1_max
  • down_long_hemisp1_min


Back To Table of Contents



END OF DATA