DQRs for Session: 135071 User:anderbergCompleted: 05-24-2011

Data Quality Reports for Session: 135071 User: anderberg Completed: 05/24/2011

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030110.36	SGP/SIRS/E10 - Noisy UIR	sgpsirsE10.a2, sgpsirsE10.b1, sgpsirs60sE10.a1
D030701.1	SGP/SIRS/E10 - Noisy US(upwelling shortwave) data stream problem	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D030901.1	SGP/SIRS/E19 - Shadowband Misalignment	sgpsirsE19.00, sgpsirsE19.b1, sgpsirs20sE19.a0
D030917.16	SGP/SIRS/C1 - Missing data due to Ice storm and clock problems	sgpsirsC1.00, sgpsirsC1.a2, sgpsirsC1.b1, sgpsirs20sC1.a0, sgpsirs60sC1.a1, sgp1swfanalsirs1longC1.c1, sgp15swfanalsirs1longC1.c1
D030917.17	SGP/SIRS/E13 - Missing data due to Ice storm and clock problems	sgpsirsE13.00, sgpsirsE13.a2, sgpsirsE13.b1, sgpsirs20sE13.a0, sgpsirs60sE13.a1, sgp1swfanalsirs1longE13.c1, sgp15swfanalsirs1longE13.c1
D030917.18	SGP/SIRS/E18 - Missing data due to Ice storm and clock problems	sgpsirsE18.00, sgpsirsE18.a2, sgpsirsE18.b1, sgpsirs20sE18.a0, sgpsirs60sE18.a1, sgp1swfanalsirs1longE18.c1, sgp15swfanalsirs1longE18.c1
D031020.1	SGP/SIRS/E1 - failed SIRS multiplexer	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
D031020.3	SGP/SIRS/E18 - Instrument noise problem	sgpsirsE18.00, sgpsirsE18.b1, sgpsirs20sE18.a0
D031027.1	SGP/SIRS/E10 - Noisy UIR (upwelling longwave)data stream problem	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
D031118.1	SGP/SIRS/E1 - Unknown - Downwelling shaded longwave measurement incorrect	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
D040525.12	SGP/SIRS/E19 - Metadata errors	sgpsirsE19.b1
D050322.1	SGP/BRS/C1 - low downwelling shortwave readings	sgpbrsC1.00, sgpbrsC1.b1, sgpbrs20sC1.a0
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
D061102.1	SGP/BRS/C1 - Reprocess: Calibration error in Downwelling Longwave measurement	sgpbrsC1.b1, sgpbrs20sC1.a0
D080222.2	SGP/RSS/C1 - Stability and nonlinearity corrections	sgprssC1.00, sgprssC1.b1

DQRID : D030110.36

Start Date	Start Time	End Date	End Time
01/01/2002	0000	11/08/2002	1900

Subject:	SGP/SIRS/E10 - Noisy UIR
DataStreams:	sgpsirsE10.a2, sgpsirsE10.b1, sgpsirs60sE10.a1
Description:	Upwelling Infrared irradiance signals noisy resulting from problems with pyrgeometer signal cable connections.
Measurements:	sgpsirs60sE10.a1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) up_long_hemisp_std 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) sgpsirsE10.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) up_long_hemisp_std 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) sgpsirsE10.a2: Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) up_long_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)

Back To Table of Contents

DQRID : D030701.1

Start Date	Start Time	End Date	End Time
06/22/2003	0146	07/02/2003	1400

Subject:	SGP/SIRS/E10 - Noisy US(upwelling shortwave) data stream problem
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	Beginning 6/22, upwelling shortwave values frequently dropped well below 0 W/m^2 (occasionally dropping below -50 W/m^2) during the nighttime hours. Daytime values were excessively high and noisy. Instrument wiring was suspected and was corrected 07/02/2003.
Measurements:	sgpsirsE10.b1: Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) up_short_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) sgpsirsE10.00: Raw data stream - documentation not supported sgpsirs20sE10.a0: inst_up_short_hemisp

Back To Table of Contents

DQRID : D030901.1

Start Date	Start Time	End Date	End Time
08/28/2003	1200	09/04/2003	1526

Subject:	SGP/SIRS/E19 - Shadowband Misalignment
DataStreams:	sgpsirsE19.00, sgpsirsE19.b1, sgpsirs20sE19.a0
Description:	The solar tracker appears to have failed on 8/28. Fuse replaced on 09/04/03 and tracker returned to service at 15:26GMT
Measurements:	sgpsirsE19.00: Raw data stream - documentation not supported sgpsirs20sE19.a0: Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_diffuse inst_direct_normal sgpsirsE19.b1: Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) down_long_hemisp_shaded_std 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 Longwave Hemispheric Net Infrared(down_long_netir) down_short_diffuse_hemisp_std 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) 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) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)

Back To Table of Contents

DQRID : D030917.16

Start Date	Start Time	End Date	End Time
03/09/2002	2101	03/10/2002	2125
03/13/2002	1801	03/14/2002	1602

Subject:	SGP/SIRS/C1 - Missing data due to Ice storm and clock problems
DataStreams:	sgpsirsC1.00, sgpsirsC1.a2, sgpsirsC1.b1, sgpsirs20sC1.a0, sgpsirs60sC1.a1, sgp1swfanalsirs1longC1.c1, sgp15swfanalsirs1longC1.c1
Description:	Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems.
Measurements:	sgpsirs20sC1.a0: Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_global time_offset alt inst_down_long_shaded_dome_resist inst_down_long_shaded_case_resist inst_diffuse inst_up_long_case_resist inst_up_long_hemisp_tp lat inst_up_long_dome_resist inst_up_short_hemisp base_time lon inst_direct_normal sgpsirsC1.00: Raw data stream - documentation not supported sgp1swfanalsirs1longC1.c1: sswfluxdn_measured difratiodn_measured Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) base_time time_offset difswfluxdn_cloudeffect Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) solar_cos_z guvbdn_measured coef_clearsky_guvb_a sswfluxdn_clearskyfit coef_clearsky_guvb_b gswfluxdn_cloudeffect Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) time_offset_LST sun_earth_distance_dailyaverage sun_earth_distance coef_date difratiodn_clearskyfit Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) sswfluxdn_cloudeffect flag_clearsky_detection Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) base_time_LST site Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) alt coef_clearsky_ssw_b coef_clearsky_ssw_a coef_clearsky_gsw_a coef_clearsky_gsw_b Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) lat coef_clearsky_dsw_b coef_clearsky_dsw_a coef_clearsky_albedo_b coef_clearsky_albedo_a coef_clearsky_dsw_c guvbdn_clearskyfit lon coef_clearsky_difratio_b coef_clearsky_difratio_a sgp15swfanalsirs1longC1.c1: time_offset_LST Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) nsamples_cloudfraction Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) sswfluxdn_cloudeffect guvbdn_measured lon difratiodn_clearskyfit difswfluxdn_cloudeffect sswfluxdn_measured solar_cos_z sun_earth_distance time_offset difratiodn_measured_stdev guvbdn_clearskyfit base_time gswfluxdn_cloudeffect site difcloudeffect_normalized alt Fractional Sky Cover(cloudfraction) Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) nsamples_clearsky_detection nsamples_gswfluxdn_clearskyfit difratiodn_measured base_time_LST lat Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) nsamples_sswfluxdn_measured Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) sswfluxdn_clearskyfit Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) sgpsirsC1.a2: Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) inst_up_long_dome_temp inst_up_long_case_temp Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) inst_down_long_shaded_dome_temp Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) up_short_hemisp_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) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) up_long_hemisp_std alt 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) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) 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) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) down_long_hemisp_shaded_std inst_down_long_shaded_case_temp time_offset lat Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) vBatt lon base_time Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) short_direct_normal_std down_short_hemisp_std Upwelling Longwave Hemispheric Net Infrared(up_long_netir) sgpsirs60sC1.a1: Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) up_short_hemisp_std down_short_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) down_long_hemisp_shaded_std down_short_diffuse_hemisp_std base_time Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) alt time_offset 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) lon Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) vBatt Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) up_long_hemisp_std 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) lat 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 Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) short_direct_normal_std sgpsirsC1.b1: short_direct_normal_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) inst_down_long_shaded_case_temp Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) vBatt Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) up_long_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) down_short_hemisp_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) inst_up_long_dome_temp Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) base_time 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) down_short_diffuse_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) inst_up_long_case_temp time_offset Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) lat up_short_hemisp_std lon Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) down_long_hemisp_shaded_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) inst_down_long_shaded_dome_temp Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) alt

Back To Table of Contents

DQRID : D030917.17

Start Date	Start Time	End Date	End Time
03/09/2002	2006	03/10/2002	1902
03/13/2002	1806	03/14/2002	1607

Subject:	SGP/SIRS/E13 - Missing data due to Ice storm and clock problems
DataStreams:	sgpsirsE13.00, sgpsirsE13.a2, sgpsirsE13.b1, sgpsirs20sE13.a0, sgpsirs60sE13.a1, sgp1swfanalsirs1longE13.c1, sgp15swfanalsirs1longE13.c1
Description:	Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems.
Measurements:	sgpsirs20sE13.a0: Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) inst_direct_normal inst_up_long_dome_resist inst_up_long_hemisp_tp alt lon inst_down_long_shaded_case_resist base_time time_offset inst_up_short_hemisp inst_down_long_shaded_dome_resist lat inst_diffuse inst_global inst_up_long_case_resist sgpsirsE13.00: Raw data stream - documentation not supported sgpsirs60sE13.a1: Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) time_offset Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) up_short_hemisp_std lat short_direct_normal_std Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) down_short_hemisp_std down_short_diffuse_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) down_long_hemisp_shaded_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) vBatt Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) 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) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) up_long_hemisp_std alt 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) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) lon Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) base_time sgpsirsE13.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) down_long_hemisp_shaded_std vBatt Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) 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) inst_down_long_shaded_dome_temp Upwelling Longwave Hemispheric Net Infrared(up_long_netir) short_direct_normal_std inst_down_long_shaded_case_temp up_long_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) up_short_hemisp_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) inst_up_long_dome_temp lon Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) base_time Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) alt Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) inst_up_long_case_temp lat time_offset Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) down_short_diffuse_hemisp_std down_short_hemisp_std Downwelling Longwave Hemispheric Net Infrared(down_long_netir) sgpsirsE13.a2: Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) inst_up_long_dome_temp up_long_hemisp_std up_short_hemisp_std Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) 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) inst_down_long_shaded_dome_temp Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) vBatt time_offset Upwelling Longwave Hemispheric Net Infrared(up_long_netir) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) inst_down_long_shaded_case_temp Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) 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) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) down_long_hemisp_shaded_std 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) down_short_hemisp_std base_time down_short_diffuse_hemisp_std Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) short_direct_normal_std alt lat lon Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) inst_up_long_case_temp sgp15swfanalsirs1longE13.c1: Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) base_time_LST Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) guvbdn_clearskyfit time_offset Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) nsamples_gswfluxdn_clearskyfit sswfluxdn_cloudeffect nsamples_clearsky_detection sswfluxdn_measured solar_cos_z gswfluxdn_cloudeffect difratiodn_measured Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) alt difratiodn_measured_stdev difswfluxdn_cloudeffect difcloudeffect_normalized guvbdn_measured Fractional Sky Cover(cloudfraction) Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) nsamples_cloudfraction Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) nsamples_sswfluxdn_measured Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) sswfluxdn_clearskyfit lat difratiodn_clearskyfit base_time sun_earth_distance time_offset_LST site lon Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) sgp1swfanalsirs1longE13.c1: sswfluxdn_clearskyfit Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) lat base_time coef_clearsky_ssw_b coef_clearsky_ssw_a coef_clearsky_guvb_a coef_clearsky_guvb_b solar_cos_z difratiodn_measured coef_clearsky_dsw_c coef_clearsky_dsw_b coef_clearsky_dsw_a flag_clearsky_detection Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) lon site sun_earth_distance_dailyaverage coef_date gswfluxdn_cloudeffect coef_clearsky_gsw_a coef_clearsky_gsw_b sswfluxdn_measured Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) guvbdn_measured Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) coef_clearsky_albedo_a coef_clearsky_albedo_b difswfluxdn_cloudeffect Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) time_offset sswfluxdn_cloudeffect coef_clearsky_difratio_a Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) difratiodn_clearskyfit coef_clearsky_difratio_b sun_earth_distance guvbdn_clearskyfit time_offset_LST base_time_LST alt

Back To Table of Contents

DQRID : D030917.18

Start Date	Start Time	End Date	End Time
03/09/2002	2102	03/10/2002	2040
03/13/2002	1702	03/14/2002	1604

Subject:	SGP/SIRS/E18 - Missing data due to Ice storm and clock problems
DataStreams:	sgpsirsE18.00, sgpsirsE18.a2, sgpsirsE18.b1, sgpsirs20sE18.a0, sgpsirs60sE18.a1, sgp1swfanalsirs1longE18.c1, sgp15swfanalsirs1longE18.c1
Description:	Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems.
Measurements:	sgpsirsE18.a2: Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) inst_down_long_shaded_dome_temp Upwelling Longwave Hemispheric Net Infrared(up_long_netir) base_time 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_short_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_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) Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) up_long_hemisp_std up_short_hemisp_std lat Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) time_offset short_direct_normal_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) vBatt Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) inst_up_long_case_temp Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) down_short_diffuse_hemisp_std inst_down_long_shaded_case_temp lon Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) alt down_long_hemisp_shaded_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) inst_up_long_dome_temp sgpsirs20sE18.a0: inst_down_long_shaded_dome_resist inst_up_long_case_resist inst_global alt time_offset inst_up_short_hemisp lon inst_up_long_hemisp_tp inst_direct_normal Irradiance, longwave, downwelling, hemispheric, thermopile (Shaded Pyrgeometer1)(inst_down_long_hemisp_shaded_tp) lat inst_up_long_dome_resist inst_down_long_shaded_case_resist inst_diffuse base_time sgp1swfanalsirs1longE18.c1: sswfluxdn_cloudeffect Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) coef_clearsky_guvb_a coef_clearsky_guvb_b difswfluxdn_cloudeffect difratiodn_measured Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) site sswfluxdn_measured sun_earth_distance time_offset Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) coef_clearsky_albedo_a coef_clearsky_albedo_b coef_clearsky_difratio_b coef_clearsky_difratio_a coef_clearsky_ssw_b coef_clearsky_ssw_a base_time guvbdn_measured Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) coef_clearsky_gsw_a coef_clearsky_gsw_b lon time_offset_LST coef_date alt difratiodn_clearskyfit lat gswfluxdn_cloudeffect base_time_LST Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) sun_earth_distance_dailyaverage solar_cos_z guvbdn_clearskyfit coef_clearsky_dsw_c coef_clearsky_dsw_b coef_clearsky_dsw_a Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) flag_clearsky_detection sswfluxdn_clearskyfit sgpsirs60sE18.a1: lon short_direct_normal_std Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) down_short_diffuse_hemisp_std 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) 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) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) lat Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) down_long_hemisp_shaded_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) time_offset alt Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) base_time Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_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) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) vBatt up_short_hemisp_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) up_long_hemisp_std Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) sgpsirsE18.b1: Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) up_long_hemisp_std down_short_diffuse_hemisp_std Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) inst_up_long_case_temp Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) lat vBatt Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) time_offset Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) alt Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Downwelling Longwave Hemispheric Net Infrared(down_long_netir) Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) base_time up_short_hemisp_std Upwelling Longwave Hemispheric Net Infrared(up_long_netir) down_short_hemisp_std Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) down_long_hemisp_shaded_std inst_down_long_shaded_case_temp Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) short_direct_normal_std inst_down_long_shaded_dome_temp Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) inst_up_long_dome_temp Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) lon sgp15swfanalsirs1longE18.c1: nsamples_gswfluxdn_clearskyfit Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit) guvbdn_clearskyfit Fractional Sky Cover(cloudfraction) site difratiodn_measured_stdev lat difswfluxdn_cloudeffect Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit) nsamples_clearsky_detection lon base_time_LST time_offset alt sswfluxdn_clearskyfit solar_cos_z gswfluxdn_cloudeffect Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) guvbdn_measured Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) time_offset_LST Clear-sky Fit Estimated Sfc. Albedo from Shortwave Irrad. Measurements (calb)(albedosw_clearskyfit) Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (csw)(gswfluxdn_clearskyfit) base_time nsamples_cloudfraction nsamples_sswfluxdn_measured sswfluxdn_measured difratiodn_measured difratiodn_clearskyfit difcloudeffect_normalized sun_earth_distance sswfluxdn_cloudeffect Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) sgpsirsE18.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D031020.1

Start Date	Start Time	End Date	End Time
10/14/2003	2023	10/21/2003	1930

Subject:	SGP/SIRS/E1 - failed SIRS multiplexer
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
Description:	Beginning 10/14, a failed multiplexer resulted in missing downwelling shortwave data and downwelling and upwelling longwave data which were much too low. The multiplexer handles data for the longwave instruments (UIR and DIR) case and dome temperatures as well as the downwelling shortwave hemispheric instrument (DS).
Measurements:	sgpsirsE1.00: Raw data stream - documentation not supported sgpsirs20sE1.a0: inst_up_long_dome_resist inst_down_long_shaded_dome_resist inst_global inst_up_long_case_resist inst_down_long_shaded_case_resist sgpsirsE1.b1: down_long_hemisp_shaded_std inst_down_long_shaded_case_temp inst_down_long_shaded_dome_temp down_short_hemisp_std inst_up_long_dome_temp Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Maxima(down_long_hemisp_shaded_max) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) up_long_hemisp_std inst_up_long_case_temp Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min) 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, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)

Back To Table of Contents

DQRID : D031020.3

Start Date	Start Time	End Date	End Time
10/09/2003	1000	10/20/2003	0000

Subject:	SGP/SIRS/E18 - Instrument noise problem
DataStreams:	sgpsirsE18.00, sgpsirsE18.b1, sgpsirs20sE18.a0
Description:	Upwelling longwave data was somewhat noisy during this period. There was a direct relation to the case and dome thermistor measurements for the upwelling longwave PIR (UIR). Data quality does not appear to be greatly affected overall, though instantaneous values had greater than usual variability. The noise disappeared on 10/19.
Measurements:	sgpsirs20sE18.a0: inst_up_long_dome_resist inst_up_long_case_resist sgpsirsE18.b1: Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) inst_up_long_dome_temp Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) inst_up_long_case_temp up_long_hemisp_std sgpsirsE18.00: Raw data stream - documentation not supported

Back To Table of Contents

DQRID : D031027.1

Start Date	Start Time	End Date	End Time
06/29/2003	1500	08/06/2003	0500

Subject:	SGP/SIRS/E10 - Noisy UIR (upwelling longwave)data stream problem
DataStreams:	sgpsirsE10.00, sgpsirsE10.b1, sgpsirs20sE10.a0
Description:	Beginning 6/29, upwelling longwave (UIR) values frequently exceeded quality control boundaries and appeared excessively noisy. Instrument wiring was suspected. Data remained noisy until 08/06/2003 0500GMT when the UIR data returned to normal.
Measurements:	sgpsirsE10.b1: inst_up_long_dome_temp Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Longwave Hemispheric Net Infrared(up_long_netir) inst_up_long_case_temp up_long_hemisp_std 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) sgpsirsE10.00: Raw data stream - documentation not supported sgpsirs20sE10.a0: inst_up_long_dome_resist inst_up_long_hemisp_tp inst_up_long_case_resist

Back To Table of Contents

DQRID : D031118.1

Start Date	Start Time	End Date	End Time
11/11/2003	0438	11/18/2003	2200

Subject:	SGP/SIRS/E1 - Unknown - Downwelling shaded longwave measurement incorrect
DataStreams:	sgpsirsE1.00, sgpsirsE1.b1, sgpsirs20sE1.a0
Description:	Downwelling longwave values were very noisy and out of range due to a missing PIR case temperature measurement. Faulty wiring to the case temperature thermistor on the downwelling longwave IR instrument (PIR) was the likely cause of the problem. On 11/18, the E1 tracker and associated instruments (direct shortwave -NIP, hemispheric shaded shortwave -8-48 and hemispheric shaded longwave - problem PIR) were moved to a new tracker stand. Rewiring the instrument corrected the problem.
Measurements:	sgpsirsE1.00: Raw data stream - documentation not supported sgpsirs20sE1.a0: inst_down_long_shaded_case_resist sgpsirsE1.b1: down_long_hemisp_shaded_std inst_down_long_shaded_case_temp 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) Downwelling Longwave Hemispheric Irradiance, Shaded Ventilated Pyrgeometer(down_long_hemisp_shaded)

Back To Table of Contents

DQRID : D040525.12

Start Date	Start Time	End Date	End Time
01/01/2002	0000	05/06/2003	2359

Subject:	SGP/SIRS/E19 - Metadata errors
DataStreams:	sgpsirsE19.b1
Description:	The latitude, longitude and altitude of the El Reno (E19) site were incorrectly entered into the ARM database. The correct location of the SIRS.E19 instrument is: Lat: 35.557N Lon: 98.017W Alt: 421m
Measurements:	sgpsirsE19.b1: lon lat alt

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 : 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 : 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

DQRID : D080222.2

Start Date	Start Time	End Date	End Time
06/01/2003	1200	09/27/2007	0017

Subject:	SGP/RSS/C1 - Stability and nonlinearity corrections
DataStreams:	sgprssC1.00, sgprssC1.b1
Description:	From the very beginning after deployment in May 2003 we observed several effects that we did not anticipate during the pre-deployment lab test. They were: (1) Rapid drop in responsivity; (2) Responsivity having 1/lambda wavelike periodicity; (3) Appearance of nonlinearity within 3 months; (4) Larger than expected diurnal wavelength changes and long term wavelength drift. Right away we responded with development of correction algorithms and methods. (1) and (2) are corrected to within 2-3% with biweekly lamp calibrations; (3) Nonlinearity factor is derived from calibration data and applied in correction; and (4) is efficiently corrected with Fourier correlation algorithm applied to every spectrum (once a minute). Furthermore we perform Langley regression processing (not a part of official data stream) that corrects longer term drifts in responsivity and should correct calibration lamp biases. The Vo's from Langley regressions are available via RSS web page. The overhaul of the instrument is planned to eliminate or at least reduce nonlinerarity stability problems. We hope that after the overhaul data processing would be simplified and the frequency of calibrations would be reduced.
Measurements:	sgprssC1.00: AVHRR satellite images for Darwin from BOM (RAW)(raw) sgprssC1.b1: sdf_diff sdf_dn Wavelength of spectrum data(wavelength) Radiation, Shortwave, Downwelling, Diffuse(diffuse) blue_shift sdf_th Radiation, Shortwave, Downwelling, Direct normal(directnormal) red_shift Radiation, Shortwave, Downwelling, Global(totalhorizontal)

Back To Table of Contents

END OF DATA