DQRs for Session: 135004 User:anderbergCompleted: 05-20-2011

Data Quality Reports for Session: 135004 User: anderberg Completed: 05/20/2011

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040205.1	SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers	sgpsirsE1.00, sgpsirsE1.b1, sgpsirsE2.00, sgpsirsE2.b1, sgpsirsE3.00, sgpsirsE3.b1, sgpsirsE5.00, sgpsirsE5.b1, sgpsirsE8.00, sgpsirsE8.b1, sgpsirs20sE1.a0, sgpsirs20sE2.a0, sgpsirs20sE3.a0, sgpsirs20sE5.a0, sgpsirs20sE8.a0
D040226.2	SGP/SIRS/E11 - PSP dome contamination	sgpsirsE11.00, sgpsirsE11.b1, sgpsirs20sE11.a0
D040227.2	SGP/SIRS/E16 - Tracker Misaligned	sgpsirsE16.b1, sgpsirs20sE16.a0
D040227.4	SGP/SIRS/E15 - PSP dome contamination	sgpsirsE15.b1, sgpsirs20sE15.a0
D040303.1	SGP/SIRS/E16 - PSP Dome Contamination	sgpsirsE16.b1, sgpsirs20sE16.a0
D040322.1	SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric	sgpsirsC1.b1, sgpsirs20sC1.a0
D040608.2	SGP/BRS/C1 - NIP sensor failure	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
D040608.3	SGP/SIRS/E15 - NIP cable failure results in missing data	sgpsirsE15.00, sgpsirsE15.b1, sgpsirs20sE15.a0
D040615.5	SGP/SIRS/E12 - Incorrect Times	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0, sgp1swfanalsirs1longE12.c1, sgp15swfanalsirs1longE12.c1
D040831.1	SGP/SIRS/E1 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE1.00, sgpsirsE1.b1
D040831.4	SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE10.00, sgpsirsE10.b1
D040831.5	SGP/SIRS/E11 - Reprocess: Incorrect shortwave radiometer calibration coefficients	sgpsirsE11.00, sgpsirsE11.b1
D040903.1	SGP/SIRS/E11 - Reprocessed: Incorrect upwelling longwave calibrations	sgpsirsE11.b1
D040907.1	SGP/SIRS/C1/E13 - Incorrect calibration coefficients	sgpsirsC1.00, sgpsirsC1.b1, sgpsirsE13.00, sgpsirsE13.b1, sgpsirs20sC1.a0, sgpsirs20sE13.a0
D041206.1	SGP/SIRS/E10 - tracker failure	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D050106.4	SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients	sgpsirsC1.00, sgpsirsC1.b1
D050109.3	SGP/SIRS/E12 - Ice obscured NIP	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0
D050114.5	SGP/SIRS/E15 - Failed NIP cable	sgpsirsE15.00, sgpsirsE15.b1, sgpsirs20sE15.a0
D050131.22	SGP/SIRS/E11 - Ice storm	sgpsirsE11.b1, sgpsirs20sE11.a0
D050131.23	SGP/SIRS/E15 - Ice storm	sgpsirsE15.b1, sgpsirs20sE15.a0
D050131.24	SGP/SIRS/E16 - Ice storm	sgpsirsE16.b1, sgpsirs20sE16.a0
D050205.1	SGP/SIRS/E1 - broken cable on DSDH (aka DD) measurment instrument - Eppley 8-48.	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
D050205.4	SGP/SIRS/E18 - Possible PSP dome contamination	sgpsirsE18.00, sgpsirsE18.b1, sgpsirs20sE18.a0
D050206.1	SGP/BRS/C1 - Monthly Summary	sgpbrsC1.b1
D050206.2	SGP/SIRS/C1 - Monthly Summary	sgpsirsC1.b1
D050206.3	SGP/SIRS/E13 - Monthly Report	sgpsirsE13.b1
D050225.2	SGP/BRS/C1 - Reprocess: Incorrect Calibration Coefficients	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
D050312.1	SGP/BRS/C1 - Monthly Summary	sgpbrsC1.b1
D050322.1	SGP/BRS/C1 - low downwelling shortwave readings	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
D050429.1	SGP/SIRS/E12 - Reprocess: Incorrect calibrations	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0
D050601.1	SGP/SIRS/E13 - Reprocess: incorrect calibrations	sgpsirsE13.00, sgpsirsE13.b1, sgpsirs20sE13.a0
D060630.18	SGP/SIRS/E10 - Reprocessed: Longwave Calibration error	sgpsirsE10.b1
D060630.19	SGP/SIRS/E11 - Reprocessed: Longwave Calibration error	sgpsirsE11.b1
D060630.20	SGP/SIRS/E12 - Reprocessed: Longwave Calibration error	sgpsirsE12.b1
D060630.21	SGP/SIRS/E13 - Reprocessed: Longwave Calibration error	sgpsirsE13.b1
D060630.22	SGP/SIRS/E15 - Reprocessed: Longwave Calibration error	sgpsirsE15.b1
D060630.23	SGP/SIRS/E16 - Reprocessed: Longwave Calibration error	sgpsirsE16.b1
D060630.24	SGP/SIRS/E18 - Reprocessed: Longwave Calibration error	sgpsirsE18.b1
D060630.25	SGP/SIRS/E19 - Reprocessed: Longwave Calibration error	sgpsirsE19.b1
D060630.7	SGP/BRS/C1 - Reprocessed: Longwave Calibration error	sgpbrsC1.b1
D060630.8	SGP/SIRS/C1 - Reprocessed: Longwave Calibration error	sgpsirsC1.b1
D060630.9	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error	sgpsirsE1.b1
D061102.1	SGP/BRS/C1 - Reprocess: Calibration error in Downwelling Longwave measurement	sgpbrsC1.b1, sgpbrs20sC1.a0

DQRID : D040205.1

Start Date	Start Time	End Date	End Time
02/02/2004	1200	02/02/2004	2000

Subject:	SGP/SIRS/E1/E2/E3/E5/E8 - Snow on Radiometers
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1, sgpsirsE2.00, sgpsirsE2.b1, sgpsirsE3.00, sgpsirsE3.b1, sgpsirsE5.00, sgpsirsE5.b1, sgpsirsE8.00, sgpsirsE8.b1, sgpsirs20sE1.a0, sgpsirs20sE2.a0, sgpsirs20sE3.a0, sgpsirs20sE5.a0, sgpsirs20sE8.a0
Description:	A large discrepancy between the measured values of downwelling hemispheric shortwave radiation and the derived values occurred on 2/02 at the listed sites. The difference is on the order of 200 Wm^(-2) at E2 and to a lesser extent at the other affected stations. This problem most likely resulted from a previous day or night snow/ice accumulation on the Direct(NIP), Downwelling Sortwave(PSP) and/or Downwelling Diffuse(8-48) instruments. During the morning hours of 02/02, Approx 1300-2000GMT, snow/ice was covering one or more of these three instruments resulting in faulty readings and incorrect derived downwelling shortwave values as well. Instrument readings indicate the problem resolved itself later in the day through normal meltoff.
Measurements:	sgpsirs20sE3.a0: inst_diffuse inst_direct_normal inst_global sgpsirsE3.00: Raw data stream - documentation not supported sgpsirs20sE5.a0: inst_global inst_direct_normal inst_diffuse sgpsirs20sE1.a0: inst_global inst_direct_normal inst_diffuse sgpsirsE1.b1: down_short_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) down_short_diffuse_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) short_direct_normal_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) sgpsirs20sE8.a0: inst_direct_normal inst_diffuse inst_global sgpsirsE2.b1: down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) down_short_diffuse_hemisp_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) short_direct_normal_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) sgpsirsE1.00: Raw data stream - documentation not supported sgpsirsE8.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_diffuse_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std down_short_hemisp_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpsirs20sE2.a0: inst_direct_normal inst_diffuse inst_global sgpsirsE8.00: Raw data stream - documentation not supported sgpsirsE3.b1: Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) down_short_diffuse_hemisp_std down_short_hemisp_std short_direct_normal_std 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) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) sgpsirsE5.b1: down_short_hemisp_std short_direct_normal_std Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_diffuse_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) sgpsirsE2.00: Raw data stream - documentation not supported sgpsirsE5.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D040226.2

Start Date	Start Time	End Date	End Time
02/20/2004	1500	03/01/2004	1300

Subject:	SGP/SIRS/E11 - PSP dome contamination
DataStreams:	sgpsirsE11.00, sgpsirsE11.b1, sgpsirs20sE11.a0
Description:	Measured values of diffuse shortwave downwelling radiation fluctuated below derived values of downwelling shortwave radiation during the afternoon hours under clear conditions, probably due to a dirty PSP dome. SMOS precipitation and wind speed data reveal rain and wind on 02/19/03 at 2300 GMT probably contaminated the PSP dome with dirt. Precipitation of .4mm on 02/29/04 1400 seems to have effectively cleared the PSP dome since PSP data on 03/01/04 compares correctly to direct and diffuse components.
Measurements:	sgpsirs20sE11.a0: inst_global sgpsirsE11.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_hemisp_std sgpsirsE11.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D040227.2

Start Date	Start Time	End Date	End Time
02/06/2004	2200	02/18/2004	1605

Subject:	SGP/SIRS/E16 - Tracker Misaligned
DataStreams:	sgpsirsE16.b1, sgpsirs20sE16.a0
Description:	Direct Normal Shortwave (NIP) values may be reduced by tracker misalignment (tracker clock slow by 2 minutes 10 sec on 2/18/04). Downwelling Diffuse (DD) values may be increased by the tracker misalignment. Error amounts can not be accurately quantified.
Measurements:	sgpsirsE16.b1: Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) short_direct_normal_std down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpsirs20sE16.a0: inst_direct_normal inst_diffuse

Back To Table of Contents

DQRID : D040227.4

Start Date	Start Time	End Date	End Time
02/20/2004	1900	02/29/2004	1700

Subject:	SGP/SIRS/E15 - PSP dome contamination
DataStreams:	sgpsirsE15.b1, sgpsirs20sE15.a0
Description:	PSP dome was dirty. Afternoon values of downwelling shortwave radiation were less than derived values by about 50 W/m^2. PSP values compare well to derived PSP values after precip event on 02/29/04 1300-1600 GMT. Maintenance on 03/02 1713 GMT revealed no unusual contamination. Precip on 02/29 likely effectively cleaned the PSP dome.
Measurements:	sgpsirs20sE15.a0: inst_global sgpsirsE15.b1: Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) down_short_hemisp_std

Back To Table of Contents

DQRID : D040303.1

Start Date	Start Time	End Date	End Time
02/06/2004	2200	02/18/2004	1605

Subject:	SGP/SIRS/E16 - PSP Dome Contamination
DataStreams:	sgpsirsE16.b1, sgpsirs20sE16.a0
Description:	Downwelling Shortwave (DS) values near 22:00 GMT during clear skys are lower than expected due to contamination of pyranometer dome. A dime-sized spot of dirt was found on the southwest portion of the pyranometer dome. DS values for cloudy conditions during this period are also suspect, but the amount of irradiance reduction are not significant.
Measurements:	sgpsirsE16.b1: down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) sgpsirs20sE16.a0: inst_global

Back To Table of Contents

DQRID : D040322.1

Start Date	Start Time	End Date	End Time
03/18/2004	1500	06/10/2004	2000

Subject:	SGP/SIRS/C1 - Discrepancy between measured and derived downwelling shortwave hemispheric
DataStreams:	sgpsirsC1.b1, sgpsirs20sC1.a0
Description:	Measured values of downwelling hemispheric shortwave radiation were up to 40 W/m^2 higher than derived values during the afternoon hours. Analysis reveals that this is likely an artifact of the cosine response of the particular installed PSP coupled with typical uncertainties of this set of installed radiometers. That is, this particular instrument cluster seems to be producing cumulative errors on the high side of accepted values. The PSP contains the most uncertainty in measurement at this station. Users should use a derived value for the downwelling shortwave hemispheric irradiance (DS). Where DS = diffuse component + direct normal * cos(SZA) component described in the SIRS handbook Sec 7.2 available at: http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf
Measurements:	sgpsirs20sC1.a0: inst_diffuse inst_global inst_direct_normal sgpsirsC1.b1: Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) short_direct_normal_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) down_short_diffuse_hemisp_std Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)

Back To Table of Contents

DQRID : D040608.2

Start Date	Start Time	End Date	End Time
06/02/2004	1734	06/15/2004	2010

Subject:	SGP/BRS/C1 - NIP sensor failure
DataStreams:	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
Description:	Normal incidence values of downwelling shortwave radiation were reported as -9999 (missing). The NIP instrument was damaged by lightning in the area near the time of failure.
Measurements:	sgpbrsC1.b1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) sgpbrs20sC1.a0: inst_direct_normal sgpbrsC1.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D040608.3

Start Date	Start Time	End Date	End Time
06/03/2004	1122	06/08/2004	1700

Subject:	SGP/SIRS/E15 - NIP cable failure results in missing data
DataStreams:	sgpsirsE15.00, sgpsirsE15.b1, sgpsirs20sE15.a0
Description:	The NIP began reporting -9999 (missing) for all direct normal downwelling shortwave radiation. Maintenance 6/8 revealed a broken cable. Cable was repaired and NIP data returned to normal.
Measurements:	sgpsirs20sE15.a0: inst_direct_normal sgpsirsE15.00: Raw data stream - documentation not supported 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)

Back To Table of Contents

DQRID : D040615.5

Start Date	Start Time	End Date	End Time
02/19/2004	2212	03/10/2004	2247

Subject:	SGP/SIRS/E12 - Incorrect Times
DataStreams:	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0, sgp1swfanalsirs1longE12.c1, sgp15swfanalsirs1longE12.c1
Description:	The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th.
Measurements:	sgpsirsE12.b1: Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) inst_up_long_case_temp inst_down_long_shaded_case_temp Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) up_short_hemisp_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) down_short_diffuse_hemisp_std down_long_hemisp_shaded_std Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) time_offset Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) vBatt Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) short_direct_normal_std Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) base_time up_long_hemisp_std Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) inst_down_long_shaded_dome_temp Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) inst_up_long_dome_temp Downwelling Longwave Hemispheric Net Infrared(down_long_netir) down_short_hemisp_std sgpsirsE12.00: Raw data stream - documentation not supported sgp15swfanalsirs1longE12.c1: solar_cos_z time_offset difcloudeffect_normalized Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) guvbdn_clearskyfit sswfluxdn_cloudeffect Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) nsamples_gswfluxdn_clearskyfit sun_earth_distance Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) sswfluxdn_measured nsamples_sswfluxdn_measured nsamples_cloudfraction time_offset_LST base_time Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) difratiodn_clearskyfit Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) nsamples_clearsky_detection gswfluxdn_cloudeffect Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) Fractional Sky Cover(cloudfraction) Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) difswfluxdn_cloudeffect base_time_LST Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) difratiodn_measured difratiodn_measured_stdev site guvbdn_measured sswfluxdn_clearskyfit sgp1swfanalsirs1longE12.c1: coef_clearsky_albedo_a coef_clearsky_albedo_b time_offset_LST coef_clearsky_guvb_a coef_clearsky_guvb_b Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) guvbdn_measured sswfluxdn_cloudeffect Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) coef_date sun_earth_distance_dailyaverage Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) flag_clearsky_detection Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) sswfluxdn_clearskyfit gswfluxdn_cloudeffect difratiodn_measured coef_clearsky_difratio_b coef_clearsky_difratio_a sun_earth_distance difratiodn_clearskyfit coef_clearsky_gsw_a coef_clearsky_dsw_c coef_clearsky_dsw_a coef_clearsky_dsw_b Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) coef_clearsky_ssw_a guvbdn_clearskyfit coef_clearsky_ssw_b Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) sswfluxdn_measured Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) base_time_LST site coef_clearsky_gsw_b solar_cos_z difswfluxdn_cloudeffect time_offset base_time sgpsirs20sE12.a0: inst_down_long_shaded_case_resist inst_global inst_up_long_dome_resist inst_up_long_case_resist base_time inst_direct_normal inst_up_short_hemisp Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_up_long_hemisp_tp time_offset inst_down_long_shaded_dome_resist inst_diffuse

Back To Table of Contents

DQRID : D040831.1

Start Date	Start Time	End Date	End Time
02/10/2004	2050	04/20/2004	2015

Subject:	SGP/SIRS/E1 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1
Description:	During the pyrgeometer instrument (PIR) changout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were : downwelling diffuse (8-48), upwelling shortwave(PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)109.01 US(corrected) = (US/113.19)111.47 NIP(corrected)= (NIP/120.17)114.82 DS(corrected) = (DS/118.46)116.51
Measurements:	sgpsirsE1.00: Raw data stream - documentation not supported sgpsirsE1.b1: up_short_hemisp_std Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) down_short_diffuse_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) down_short_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) short_direct_normal_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min)

Back To Table of Contents

DQRID : D040831.4

Start Date	Start Time	End Date	End Time
02/20/2004	1630	04/21/2004	1425

Subject:	SGP/SIRS/E10 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1
Description:	During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For SGP/SIRS/E10 and each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)114.63 US(corrected) = (US/113.19)117.46 NIP(corrected)= (NIP/120.17)119.26 DS(corrected) = (DS/118.46)122.78
Measurements:	sgpsirsE10.b1: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) up_short_hemisp_std short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) sgpsirsE10.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D040831.5

Start Date	Start Time	End Date	End Time
02/17/2004	1741	05/05/2004	0000

Subject:	SGP/SIRS/E11 - Reprocess: Incorrect shortwave radiometer calibration coefficients
DataStreams:	sgpsirsE11.00, sgpsirsE11.b1
Description:	During the pyrgeometer instrument (PIR) changeout a datalogger program was loaded with incorrect calibration coefficients for the shortwave instruments. The affected measurements (instruments) were: downwelling diffuse (8-48), upwelling shortwave (PSP), direct normal (NIP) and downwelling shortwave (PSP) Field tech reports the datalogger program was corrected on 4/27/04. Archive data review shows this was not the case and the corrected datalogger program was uploaded sometime late day 5/4/04. The end date for this DQR was chosen to be 5/5/04 0000 the first full day of the correct datalogger program. Recalculate irradiances by determining original mV signal and reapplying the correct calibration coefficients. For each one minute irradiance value perform the following calculations by instrument: DD(corrected) = (DD/107.24)123.27 US(corrected) = (US/113.19)127.75 NIP(corrected)= (NIP/120.17)126.69 DS(corrected) = (DS/118.46)126.56
Measurements:	sgpsirsE11.00: Raw data stream - documentation not supported sgpsirsE11.b1: up_short_hemisp_std Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) down_short_hemisp_std Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)

Back To Table of Contents

DQRID : D040903.1

Start Date	Start Time	End Date	End Time
05/04/2004	0000	06/22/2004	1855

Subject:	SGP/SIRS/E11 - Reprocessed: Incorrect upwelling longwave calibrations
DataStreams:	sgpsirsE11.b1
Description:	Incorrect calibration coefficients were applied to the upwelling longwave measurements due to an error in the instrument configuration file. The data have been reprocessed to apply corrected calibrations. The reprocessed data were archived in August 2006.
Measurements:	sgpsirsE11.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) up_long_hemisp_std Upwelling Longwave Hemispheric Net Infrared(up_long_netir) 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)

Back To Table of Contents

DQRID : D040907.1

Start Date	Start Time	End Date	End Time
08/27/2004	1830	09/07/2004	2130

Subject:	SGP/SIRS/C1/E13 - Incorrect calibration coefficients
DataStreams:	sgpsirsC1.00, sgpsirsC1.b1, sgpsirsE13.00, sgpsirsE13.b1, sgpsirs20sC1.a0, sgpsirs20sE13.a0
Description:	After the DIR changeout on 8/27, the DLH measurements at the central facility vary significantly between pyrgeometers by as much as 65 Wm^(-2). It was discovered that the two downwelling pyrgeometers destined for C1 and E13 may have been swapped during installation. The instrument mentor is unsure of applied calibration coefficients during this DQR's time period. Backing out new downwelling longwave irradiances would be difficult in this case. Fortunately, the problem period is less than a fortnight.
Measurements:	sgpsirs20sC1.a0: inst_down_long_shaded_dome_resist inst_down_long_shaded_case_resist Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) sgpsirsC1.00: Raw data stream - documentation not supported sgpsirs20sE13.a0: inst_down_long_shaded_case_resist Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_down_long_shaded_dome_resist sgpsirsE13.00: Raw data stream - documentation not supported sgpsirsE13.b1: inst_down_long_shaded_case_temp Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) down_long_hemisp_shaded_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) inst_down_long_shaded_dome_temp sgpsirsC1.b1: Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) down_long_hemisp_shaded_std Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) inst_down_long_shaded_case_temp inst_down_long_shaded_dome_temp

Back To Table of Contents

DQRID : D041206.1

Start Date	Start Time	End Date	End Time
11/04/2004	1800	01/26/2005	1600

Subject:	SGP/SIRS/E10 - tracker failure
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	During the night of 11/05-06 2004 the tracker failed at this location. During CM on 12/01, power cycling returned the tracker to service. However, tracker was not properly tracking in the AM. Tracker failed again sometime near 01/01/2005. CM on reloaded the tracker program and realigned the tracker on 01/26/2005 1600GMT. It has been working correctly since this time.
Measurements:	sgpsirsE10.b1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) sgpsirsE10.00: Raw data stream - documentation not supported sgpsirs20sE10.a0: inst_diffuse inst_direct_normal

Back To Table of Contents

DQRID : D050106.4

Start Date	Start Time	End Date	End Time
09/27/2004	1429	01/07/2005	1623

Subject:	SGP/SIRS/C1 - Reprocess: UIR/DIR Incorrect calibration coefficients
DataStreams:	sgpsirsC1.00, sgpsirsC1.b1
Description:	It appears the datalogger program at SIRS/C1 was automatically updated, unbeknownst to anyone, on 9/27/20041423GMT with an older program with incorrect UIR and DIR calibration coefficients. The correct and incorrect cal coeffs for the UIR and DIR pyrgeometers during this DQR period were: incorrectUIR correctUIR K0 -12.84 -13.00 K1 .2250 0.2573 K2 1.024 1.024 K3 -1.9280 -1.8050 incorrectDIR correctDIR K0 -13.15 -26.89 K1 0.2374 0.2967 K2 1.0260 1.0560 K3 -2.478 -3.3080
Measurements:	sgpsirsC1.00: Raw data stream - documentation not supported sgpsirsC1.b1: Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) down_long_hemisp_shaded_std Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) up_long_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) inst_up_long_dome_temp Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) inst_up_long_case_temp inst_down_long_shaded_case_temp Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) inst_down_long_shaded_dome_temp

Back To Table of Contents

DQRID : D050109.3

Start Date	Start Time	End Date	End Time
01/06/2005	0000	01/07/2005	2359

Subject:	SGP/SIRS/E12 - Ice obscured NIP
DataStreams:	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0
Description:	During the morning hours of 01/06, the direct normal shortwave readings are anomalously low in clear sky conditions, causing very large differences (approaching/exceeding 300 W/m^2) between the downwelling shortwave hemispheric (DSH) readings and the derived downwelling shortwave hemispheric readings. It would appear the NIP window had iced over during the previous days storm. The NIP window appears to have cleared itself by the morning of 2005/01/08.
Measurements:	sgpsirsE12.b1: Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sgpsirsE12.00: Raw data stream - documentation not supported sgpsirs20sE12.a0: inst_direct_normal

Back To Table of Contents

DQRID : D050114.5

Start Date	Start Time	End Date	End Time
01/09/2005	0849	01/18/2005	1900

Subject:	SGP/SIRS/E15 - Failed NIP cable
DataStreams:	sgpsirsE15.00, sgpsirsE15.b1, sgpsirs20sE15.a0
Description:	After the ice storm, the SHORT_DIRECT_NORMAL values were bad or missing continuously. Corrective Maintenance on 01/18 found the NIP cable had broken inside the Bendix connector. The NIP cable was repaired and returned to service.
Measurements:	sgpsirs20sE15.a0: inst_direct_normal sgpsirsE15.00: Raw data stream - documentation not supported 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)

Back To Table of Contents

DQRID : D050131.22

Start Date	Start Time	End Date	End Time
01/05/2005	0602	01/11/2005	1423

Subject:	SGP/SIRS/E11 - Ice storm
DataStreams:	sgpsirsE11.b1, sgpsirs20sE11.a0
Description:	Data missing due to ice storm.
Measurements:	sgpsirs20sE11.a0: time_offset lat inst_up_long_case_resist base_time inst_up_long_dome_resist alt inst_global inst_down_long_shaded_case_resist inst_diffuse inst_direct_normal inst_down_long_shaded_dome_resist inst_up_short_hemisp inst_up_long_hemisp_tp Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) lon sgpsirsE11.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) alt 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_down_long_shaded_case_temp base_time Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) down_long_hemisp_shaded_std short_direct_normal_std lon vBatt Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) down_short_diffuse_hemisp_std Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) inst_down_long_shaded_dome_temp up_long_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) time_offset Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) lat Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) up_short_hemisp_std Downwelling Longwave Hemispheric Net Infrared(down_long_netir) inst_up_long_dome_temp Upwelling Longwave Hemispheric Net Infrared(up_long_netir) inst_up_long_case_temp down_short_hemisp_std

Back To Table of Contents

DQRID : D050131.23

Start Date	Start Time	End Date	End Time
01/05/2005	0202	01/09/2005	0848

Subject:	SGP/SIRS/E15 - Ice storm
DataStreams:	sgpsirsE15.b1, sgpsirs20sE15.a0
Description:	Data missing due to an ice storm.
Measurements:	sgpsirs20sE15.a0: base_time inst_down_long_shaded_case_resist inst_direct_normal lon inst_up_short_hemisp inst_up_long_hemisp_tp inst_down_long_shaded_dome_resist alt inst_up_long_case_resist lat time_offset inst_up_long_dome_resist Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_global inst_diffuse sgpsirsE15.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) up_long_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) alt Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) lat inst_up_long_dome_temp Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) vBatt Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) up_short_hemisp_std base_time inst_down_long_shaded_case_temp Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) inst_down_long_shaded_dome_temp time_offset Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) down_long_hemisp_shaded_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) down_short_diffuse_hemisp_std inst_up_long_case_temp Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) lon down_short_hemisp_std Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) short_direct_normal_std

Back To Table of Contents

DQRID : D050131.24

Start Date	Start Time	End Date	End Time
01/05/2005	0602	01/09/2005	1349

Subject:	SGP/SIRS/E16 - Ice storm
DataStreams:	sgpsirsE16.b1, sgpsirs20sE16.a0
Description:	Data missing due to ice storm.
Measurements:	sgpsirsE16.b1: base_time Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) lon time_offset Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) down_short_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) lat Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) inst_up_long_case_temp Downwelling Longwave Hemispheric Net Infrared(down_long_netir) inst_down_long_shaded_dome_temp Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) inst_up_long_dome_temp Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) inst_down_long_shaded_case_temp Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) down_long_hemisp_shaded_std Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) alt Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) up_short_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) short_direct_normal_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) vBatt up_long_hemisp_std sgpsirs20sE16.a0: lon inst_diffuse inst_up_short_hemisp time_offset inst_down_long_shaded_dome_resist inst_up_long_dome_resist inst_direct_normal inst_down_long_shaded_case_resist inst_up_long_case_resist Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) lat base_time alt inst_global inst_up_long_hemisp_tp

Back To Table of Contents

DQRID : D050205.1

Start Date	Start Time	End Date	End Time
12/30/2004	2100	02/08/2005	2055

Subject:	SGP/SIRS/E1 - broken cable on DSDH (aka DD) measurment instrument - Eppley 8-48.
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
Description:	Occasionally, the downwelling shortwave diffuse hemispheric (DSDH) readings spike to unreasonably low levels, causing derived downwelling shortwave hemispheric (DSH) readings to spike well below the actual DSH readings. Technicians repaired the DSDH instument (an Eppley 8-48) cable on 02/08/2005 2055GMT. There have been no dropouts since that time.
Measurements:	sgpsirsE1.00: Raw data stream - documentation not supported sgpsirs20sE1.a0: inst_diffuse sgpsirsE1.b1: down_short_diffuse_hemisp_std Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)

Back To Table of Contents

DQRID : D050205.4

Start Date	Start Time	End Date	End Time
02/03/2005	1200	02/15/2005	2250

Subject:	SGP/SIRS/E18 - Possible PSP dome contamination
DataStreams:	sgpsirsE18.00, sgpsirsE18.b1, sgpsirs20sE18.a0
Description:	Downwelling shortwave hemispheric (DSH) measurements did not agree with derived DSH readings during the morning hours up to 1500GMT each clear day. PM cleaning on 2/16 2250 revealed nothing other than dirty water spots. A dirty or ice covered PSP dome may have been the cause, clearing itself before the PM crew arrived.
Measurements:	sgpsirs20sE18.a0: inst_global sgpsirsE18.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) sgpsirsE18.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D050206.1

Start Date	Start Time	End Date	End Time
12/01/2004	0000	12/31/2004	0000

Subject:	SGP/BRS/C1 - Monthly Summary
DataStreams:	sgpbrsC1.b1
Description:	Data quality this site-month is poor. This is due largely to the missing Upwelling Shortwave and Upwelling Longwave the entire month. This problem has been ongoing for several months now. DQPR # 124 asserted that the Global PSP was recording inaccurate readings. Thus, the Global PSP was changed out on the 17th by site ops. Prior to the 17th, the Global PSP was falling below nighttime empirical limits on most nights and there were severe 3 component failures during the day. The change out of the PSP mitigated the severity of the 3 component failures and eliminated the nighttime empirical limits failures. There were still substantial 3 component flags after the 17th.
Measurements:	sgpbrsC1.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) 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)

Back To Table of Contents

DQRID : D050206.2

Start Date	Start Time	End Date	End Time
12/01/2004	0000	01/01/2005	0000

Subject:	SGP/SIRS/C1 - Monthly Summary
DataStreams:	sgpsirsC1.b1
Description:	dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 8th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular day is typically high level yellow, with respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the evening. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause. Direct also exceeds its daytime empirical limit on the 1st, 4th, 10th, 13th, 14th, and 20th. This occurs at the changeover from medium to high air mass and does not last for longer than 30 minutes.
Measurements:	sgpsirsC1.b1: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)

Back To Table of Contents

DQRID : D050206.3

Start Date	Start Time	End Date	End Time
12/01/2004	0000	01/01/2005	0000

Subject:	SGP/SIRS/E13 - Monthly Report
DataStreams:	sgpsirsE13.b1
Description:	:Data quality this site-month is good. The offset for the Global PSP is about -7 W/m^2. The dominant problem here is the daytime 3 component problem. Direct and Diffuse are always too high and Global is too low. The problem occurs around the time that the testing regime switches from twilight to daytime testing regimes or from daytime to twilight. The flags occur in significant numbers on the 1st - 5th, 7th - 20th, 24th - 28th, 30th, and 31st. The failures vary in magnitude and duration. The worst flags for a particular respect to this problem. Global goes below daytime empirical limits on both the 5th and 6th for substantial periods of time. Diffuse also goes below daytime empirical limits on the 6th in the afternoon. Upwelling Longwave is below empirical limits on the 24th. This may not be a problem, as many sites exhibited the same problem on the same night. Exceptionally cold temperatures may be the cause.
Measurements:	sgpsirsE13.b1: Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

Back To Table of Contents

DQRID : D050225.2

Start Date	Start Time	End Date	End Time
08/05/2004	1500	12/03/2004	1700

Subject:	SGP/BRS/C1 - Reprocess: Incorrect Calibration Coefficients
DataStreams:	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
Description:	Lightening strike on or near 6/2/2004 took the BRS NIP(31747E6) out of service, on or near 6/15 the NIP was replaced and the datalogger program was changed to reflect the new NIP(31343E6). On 8/5/2004 the DIR (Downwelling longwave) instrument was changed out and a new program was loaded to reflect a new DIR. The new program contained the original installed shortwave instrument calibration coefficients including NIP 31747E6. Thus from 8/5 to when the shortwave instruments were changed out on 12/3 the wrong s/n and calibration factor (i.e. 31747E6) was applied to the actual NIP(31343E6)installed at BRS C1.
Measurements:	sgpbrsC1.b1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) sgpbrs20sC1.a0: inst_direct_normal sgpbrsC1.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D050312.1

Start Date	Start Time	End Date	End Time
01/01/2005	0000	02/01/2005	0000

Subject:	SGP/BRS/C1 - Monthly Summary
DataStreams:	sgpbrsC1.b1
Description:	Data quality this site-month is good. The offset in the Global PSP has been much improved, with an average nighttime offset of -4 W/m^2, since measures were taken on 17 DEC 2004 to fix it. The Global PSP does not go below nighttime empirical limits all month. Global does fall below daytime empirical limits for significant time periods on the 2, 4, 5, 12, 28, 30. There were still substantial 3 component flags 17 DEC 2004. The charcteristic three component failures are present through out the month, especially closer to the end of the month. The problem is about equally as bad in the morning as the evening. The flags are usually high level yellow at their worst for any given day. Finally, there are the typical three component flags on the 29th as well, but these occur under cloudy skies. The data return to normal the next day and a cause for the problem cannot be determined.
Measurements:	sgpbrsC1.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) 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)

Back To Table of Contents

DQRID : D050322.1

Start Date	Start Time	End Date	End Time
04/18/2003	0000	12/17/2004	2030

Subject:	SGP/BRS/C1 - low downwelling shortwave readings
DataStreams:	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
Description:	Downwelling shortwave (DS) values frequently drop below -10 W/m^2 at night, and are consistently 20-40 W/m^2 less than the calculated downwelling shortwave during the day in clear-sky conditions. Corrective maintenance on 12/17/2004 corrected this offset. It is not clear which CM action corrected the problem since the DS instrument cable was grounded to a new location and the DS ventilator fan was found in poor condition and was replaced. Either of these issues could have led to the problem observed in this instrument.
Measurements:	sgpbrsC1.b1: Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) sgpbrs20sC1.a0: inst_global sgpbrsC1.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D050429.1

Start Date	Start Time	End Date	End Time
04/26/2005	1726	05/03/2005	1840

Subject:	SGP/SIRS/E12 - Reprocess: Incorrect calibrations
DataStreams:	sgpsirsE12.00, sgpsirsE12.b1, sgpsirs20sE12.a0
Description:	During site corrective maintenance to resolve an Extended Facility data collection problem, the SIRS.E12 datalogger was power cycled (1725 GMT). The datalogger reverted to an old SIRS program with incorrect S/Ns and calibration coefficients for all instruments at this station. The SW data can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number) down_short_diffuse_hemisp 107.27 118.68 up_short_hemisp 113.19 127.95 short_direct_normal 120.17 120.52 down_short_hemisp 118.46 102.11 The LW data were recalibrated and reprocessed as part of a larger LW calibration task. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE12.b1: Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) down_short_diffuse_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) down_long_hemisp_shaded_std inst_down_long_shaded_dome_temp Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) short_direct_normal_std Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) base_time up_long_hemisp_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) inst_up_long_case_temp Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) alt Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) inst_up_long_dome_temp inst_down_long_shaded_case_temp Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) up_short_hemisp_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) time_offset Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) down_short_hemisp_std sgpsirsE12.00: Raw data stream - documentation not supported sgpsirs20sE12.a0: Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_up_long_dome_resist inst_up_long_case_resist inst_down_long_shaded_case_resist inst_down_long_shaded_dome_resist inst_up_long_hemisp_tp inst_diffuse inst_direct_normal inst_up_short_hemisp inst_global

Back To Table of Contents

DQRID : D050601.1

Start Date	Start Time	End Date	End Time
05/25/2005	1409	06/02/2005	2205

Subject:	SGP/SIRS/E13 - Reprocess: incorrect calibrations
DataStreams:	sgpsirsE13.00, sgpsirsE13.b1, sgpsirs20sE13.a0
Description:	After a long data gap on 5/25/2005, presumably a power outage, the following datastreams were showing incorrect values as well as incorrect calibration coefficients in the datalogger program: down_long_hemisp_shaded (downwelling PIR instrument) up_long_hemisp (upwelling PIR instrument) short_direct_normal (NIP instrument) The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded into the SIRS datalogger and storage module. The data during this time range can be recalibrated as follows: First divide value by incorrectly applied cal coeff (first number) then multiply by correct cal coeff (second number) short_direct_normal 120.28 124.58 up_long_netir 0.2386 0.2595 down_long_netir 0.3052 0.2304 Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K), inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual. up_long_hemisp k0 -18.3400 W/m^2\n, k1 0.2595 W/(m^2uV)\n, k2 1.0380 unitless\n, k3 -2.7420 unitless\n, kr 0.0007044 K/uV\n, Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp (K),inst_down_long_dome_temp(K). down_long_hemisp_shaded k0 -11.6300 W/m^2\n, k1 0.2304 W/(m^2uV)\n, k2 1.0190 unitless\n, k3 -2.4230 unitless\n, kr 0.0007044 K/uV\n,
Measurements:	sgpsirs20sE13.a0: inst_down_long_shaded_case_resist Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_direct_normal inst_up_long_dome_resist inst_up_long_case_resist inst_up_long_hemisp_tp inst_down_long_shaded_dome_resist sgpsirsE13.00: Raw data stream - documentation not supported sgpsirsE13.b1: inst_down_long_shaded_case_temp up_long_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) inst_down_long_shaded_dome_temp Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) down_long_hemisp_shaded_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) short_direct_normal_std inst_up_long_case_temp inst_up_long_dome_temp

Back To Table of Contents

DQRID : D060630.18

Start Date	Start Time	End Date	End Time
02/20/2004	1730	02/07/2006	2130

Subject:	SGP/SIRS/E10 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE10.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in August 2006.
Measurements:	sgpsirsE10.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

Back To Table of Contents

DQRID : D060630.19

Start Date	Start Time	End Date	End Time
02/17/2004	1753	02/14/2006	2016

Subject:	SGP/SIRS/E11 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE11.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in August 2006.
Measurements:	sgpsirsE11.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

Back To Table of Contents

DQRID : D060630.20

Start Date	Start Time	End Date	End Time
07/22/2003	1640	02/14/2006	1710

Subject:	SGP/SIRS/E12 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE12.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE12.b1: Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

Back To Table of Contents

DQRID : D060630.21

Start Date	Start Time	End Date	End Time
12/11/2003	1935	02/16/2006	1905

Subject:	SGP/SIRS/E13 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE13.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE13.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

Back To Table of Contents

DQRID : D060630.22

Start Date	Start Time	End Date	End Time
07/22/2003	1650	02/14/2006	1806

Subject:	SGP/SIRS/E15 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE15.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE15.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir)

Back To Table of Contents

DQRID : D060630.23

Start Date	Start Time	End Date	End Time
07/23/2003	1605	02/15/2006	1533

Subject:	SGP/SIRS/E16 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE16.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE16.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

Back To Table of Contents

DQRID : D060630.24

Start Date	Start Time	End Date	End Time
07/22/2003	2200	02/14/2006	2100

Subject:	SGP/SIRS/E18 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE18.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE18.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

Back To Table of Contents

DQRID : D060630.25

Start Date	Start Time	End Date	End Time
07/24/2003	1600	02/16/2006	1558

Subject:	SGP/SIRS/E19 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE19.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE19.b1: Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

Back To Table of Contents

DQRID : D060630.7

Start Date	Start Time	End Date	End Time
12/11/2003	1935	02/16/2006	1903

Subject:	SGP/BRS/C1 - Reprocessed: Longwave Calibration error
DataStreams:	sgpbrsC1.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in June 2004. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in November 2006.
Measurements:	sgpbrsC1.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

Back To Table of Contents

DQRID : D060630.8

Start Date	Start Time	End Date	End Time
12/11/2003	1950	02/16/2006	1901

Subject:	SGP/SIRS/C1 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsC1.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsC1.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

Back To Table of Contents

DQRID : D060630.9

Start Date	Start Time	End Date	End Time
02/10/2004	2055	02/21/2006	2007

Subject:	SGP/SIRS/E1 - Reprocessed: Longwave Calibration error
DataStreams:	sgpsirsE1.b1
Description:	Modified pyrgeometer calibration procedures were implemented beginning in February 2004. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place have been reprocessed to remove the calibration bias. The reprocessed 60 second averaged data are based on 3 instantaneous 20 second data records rather than on 60 1 second instantaneous data records. Still, these data are considered far superior to the originally processed data. The reprocessed data were archived in October 2006.
Measurements:	sgpsirsE1.b1: Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

Back To Table of Contents

DQRID : D061102.1

Start Date	Start Time	End Date	End Time
12/11/2003	1920	06/14/2004	2359

Subject:	SGP/BRS/C1 - Reprocess: Calibration error in Downwelling Longwave measurement
DataStreams:	sgpbrsC1.b1, sgpbrs20sC1.a0
Description:	On 20031211 the Downwelling LW pyrgeometer was replaced but the calibrations were not updated. Calibrations have been corrected in data beginning 20040615.
Measurements:	sgpbrsC1.b1: Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) down_long_hemisp_shaded_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) sgpbrs20sC1.a0: Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp)

Back To Table of Contents

END OF DATA