Data Quality Report for Order ID: 187712
User ID: dodde2    Date completed: 2017-09-13
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D120917.3 SGP/DISDROMETER/C1 - Missing data sgpdisdrometerC1.b1 Missing
D160104.7 SGP Site Power Outage Due to Winter Storm sgpirt200msE13.a1 Note
D140204.3 SGP/DISDROMETER/C1 - Missing data sgpdisdrometerC1.b1 Missing
D140806.2 SGP/DISDROMETER/C1 - Reprocessing Notice (RID 1211) sgpdisdrometerC1.b1 Note
D120113.4 SGP/DISDROMETER/C1 - Reprocess: Incorrect datestamp sgpdisdrometerC1.b1 Note
D080305.2 SGP/DISDROMETER/C1 - Reprocessing Notice (RID 492) sgpdisdrometerC1.b1 Note
D131209.1 SGP/DISDROMETER/C1 - Instrument failure sgpdisdrometerC1.b1 Incorrect
D160212.3 SGP - Data System Upgrades: Data Missing sgptsiskycoverC1.a1 Missing
D170303.7 SGP/DISDROMETER/C1/E13 - Loss of power sgpdisdrometerC1.b1 Incorrect
D160418.1 SGP/DISDROMETER/C1 - Incorrect zero values reported sgpdisdrometerC1.b1 Incorrect
D150716.1 SGP/DISDROMETER/C1 - Communication failure sgpdisdrometerC1.b1 Incorrect
D140801.1 SGP/DISDROMETER/C1 - Data collections issues resulted in loss of data sgpdisdrometerC1.b1 Missing
D120917.2 SGP/DISDROMETER/C1 - Precipitation events not recorded sgpdisdrometerC1.b1 Incorrect
D140909.2 SGP/DISDROMETER/C1 - Data collections issue resulted in incorrect data sgpdisdrometerC1.b1 Incorrect
D091106.1 SGP/DISDROMETER/C1 - False reports of precip sgpdisdrometerC1.b1 Suspect
 
DQR ID: D120917.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-07-25 00:00:00 2012-10-12 18:00:00 Missing
Subject: SGP/DISDROMETER/C1 - Missing data
Affected Datastreams: sgpdisdrometerC1.b1
Description Data are missing and unrecoverable.
Measurements
  • mean_diam_drop_class (Diameter of drop size class)
  • distribution_slope (Distribution slope)
  • delta_diam (Diameter interval between drop size classes)
  • lon (East longitude)
  • precip_dis (Precipitation)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • number_density (Number density)
  • time (Time offset from midnight)
  • fall_velocity (Fall velocity)
  • radar_reflectivity (Radar reflectivity)
  • lat (North latitude)
  • liq_water (Liquid water content)
  • base_time (Base time in Epoch)
  • time_offset (Time offset from base_time)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • alt (Altitude above mean sea level)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D160104.7    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-12-26 00:00:00 2016-01-01 23:59:59 Note
Subject: SGP Site Power Outage Due to Winter Storm
Affected Datastreams: sgpirt200msE13.a1
Description On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result was very very slick roads and mass power outages. The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th. The power was restored on 7:56 PM CDT on Wednesday, December 30th Site Emergency procedures were activated and Technicians drained water out of instrument reservoirs and other measures as needed, early Monday morning. On Wednesdays as roads and power started was restored to much of the areas east of I-35 , Site Technicians performed maintenance on several Extended Facilities. During this period, data are potentially missing, incorrect, or suspect. Carefully inspect the data before use.
Measurements
  • lon (East longitude)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • number_density (Number density)
  • diam_max (Diameter of largest drop)
  • time (Time offset from midnight)
  • base_time (Base time in Epoch)
  • energy_flux (Energy flux)
  • rain_rate (Rain rate)
  • time_offset (Time offset from base_time)
  • lat (North latitude)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • fall_velocity (Fall velocity)
  • drop_class (Drop class)
  • qc_time (Quality check results on field: Time offset from midnight)
  • num_drop (Number of drops)
  • precip_dis (Precipitation)
  • alt (Altitude above mean sea level)
  • distribution_slope (Distribution slope)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D140204.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-08-14 12:46:00 2013-11-15 21:08:00 Missing
Subject: SGP/DISDROMETER/C1 - Missing data
Affected Datastreams: sgpdisdrometerC1.b1
Description Data are missing and unrecoverable.
Measurements
  • precip_dis (Precipitation)
  • distribution_slope (Distribution slope)
  • number_density (Number density)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • energy_flux (Energy flux)
  • base_time (Base time in Epoch)
  • time (Time offset from midnight)
  • drop_class (Drop class)
  • time_offset (Time offset from base_time)
  • lat (North latitude)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • fall_velocity (Fall velocity)
  • rain_rate (Rain rate)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • alt (Altitude above mean sea level)
  • lon (East longitude)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D140806.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-08-05 14:37:00 2014-05-15 18:20:00 Note
Subject: SGP/DISDROMETER/C1 - Reprocessing Notice (RID 1211)
Affected Datastreams: sgpdisdrometerC1.b1
Description See below for details of reprocessing that was completed on 20141217. Original DQR category: 5 (Transparent - Does not affect quality). ----------------------------------------------------------- The sampling during this period was 30 seconds and not 1 minute. The data are correct but data users need to be aware of this temporal resolution inconsistency.
Measurements
  • mean_diam_drop_class (Diameter of drop size class)
  • distribution_slope (Distribution slope)
  • delta_diam (Diameter interval between drop size classes)
  • precip_dis (Precipitation)
  • number_density (Number density)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D120113.4    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-11-21 00:00:00 2011-11-21 23:59:00 Note
Subject: SGP/DISDROMETER/C1 - Reprocess: Incorrect datestamp
Affected Datastreams: sgpdisdrometerC1.b1
Description The datestamp was off by one day for a several day period. Precipitation was only reported for one day during this time period. The data for 20111121 should be reported as 20111122.
Measurements
  • lambda (Distribution slope)
  • n_0 (Distribution intercept)
  • fall_vel (Fall velocity)
  • lon (East longitude)
  • ef (Energy flux)
  • delta_diam (Diameter interval between drop size classes)
  • Z (Radar reflectivity)
  • mean_diam_drop_class (Diameter of drop size class)
  • time (Time offset from midnight)
  • d_max (Diameter of largest drop)
  • rain_rate (Rain rate)
  • base_time (Base time in Epoch)
  • time_offset (Time offset from base_time)
  • lat (North latitude)
  • liq_water (Liquid water content)
  • nd (Number density)
  • num_drop (Number of drops)
  • alt (Altitude above mean sea level)
  • precip_dis (Precipitation)
 
DQR ID: D080305.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2007-12-23 00:00:00 2008-01-17 19:46:00 Note
Subject: SGP/DISDROMETER/C1 - Reprocessing Notice (RID 492)
Affected Datastreams: sgpdisdrometerC1.b1
Description See below for details of reprocessing that was completed on 20141211. Original DQR category: 5 (Transparent - Does not affect quality). ----------------------------------------------------------- No Data were collected on 12/23, 2007. When data collection resumed on 12/24 at 17:00 the sampling interval was inadvertently changed from 1 minute to 30 seconds. The sampling interval was corrected on 1/17/2008 at 20:00. Users need to be aware of the change and they should recalculate using the formulas in the Instrument Handbook if a one minute frequency is needed.
Measurements
  • number_density (Number density)
  • distribution_slope (Distribution slope)
  • precip_dis (Precipitation)
  • delta_diam (Diameter interval between drop size classes)
  • lon (East longitude)
  • time (Time offset from midnight)
  • base_time (Base time in Epoch)
  • drop_class (Drop class)
  • energy_flux (Energy flux)
  • time_offset (Time offset from base_time)
  • lat (North latitude)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • fall_velocity (Fall velocity)
  • rain_rate (Rain rate)
  • mean_diam_drop_class (Diameter of drop size class)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • alt (Altitude above mean sea level)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D131209.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-07-21 00:00:00 2013-08-14 12:45:00 Incorrect
Subject: SGP/DISDROMETER/C1 - Instrument failure
Affected Datastreams: sgpdisdrometerC1.b1
Description Initially, the instrument was not recording precipitation. Then in August it was reporting precip rates more than 2x the values reported by other instruments. Disdrometer data for this period are incorrect.
Measurements
  • distribution_intercept (Distribution intercept)
  • number_density (Number density)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • distribution_slope (Distribution slope)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • liq_water (Liquid water content)
  • radar_reflectivity (Radar reflectivity)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • precip_dis (Precipitation)
 
DQR ID: D160212.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-01-26 18:00:00 2016-01-27 21:45:59 Missing
Subject: SGP - Data System Upgrades: Data Missing
Affected Datastreams: sgptsiskycoverC1.a1
Description The data system was undergoing upgrades. Data were lost during this period.
Measurements
  • number_density (Number density)
  • time (Time offset from midnight)
  • energy_flux (Energy flux)
  • liq_water (Liquid water content)
  • qc_time (Quality check results on field: Time offset from midnight)
  • alt (Altitude above mean sea level)
  • qc_rain_rate (Quality check results on field: Rain rate)
  • mean_diam_drop_class (Diameter of drop size class)
  • distribution_slope (Distribution slope)
  • drop_class (Drop class)
  • lat (North latitude)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • qc_precip_dis (Quality check results on field: Precipitation)
  • distribution_intercept (Distribution intercept)
  • precip_dis (Precipitation)
  • lon (East longitude)
  • delta_diam (Diameter interval between drop size classes)
  • base_time (Base time in Epoch)
  • fall_velocity (Fall velocity)
  • radar_reflectivity (Radar reflectivity)
  • rain_rate (Rain rate)
  • time_offset (Time offset from base_time)
  • qc_num_drop (Quality check results on field: Number of drops)
 
DQR ID: D170303.7    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-02-20 04:19:00 2017-02-23 21:00:00 Incorrect
Subject: SGP/DISDROMETER/C1/E13 - Loss of power
Affected Datastreams: sgpdisdrometerC1.b1
Description Loss of power resulted in instrument going down.
Measurements
  • distribution_intercept (Distribution intercept)
  • number_density (Number density)
  • distribution_slope (Distribution slope)
  • delta_diam (Diameter interval between drop size classes)
  • mean_diam_drop_class (Diameter of drop size class)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • precip_dis (Precipitation)
 
DQR ID: D160418.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-01-26 00:00:00 2016-04-28 15:15:00 Incorrect
Subject: SGP/DISDROMETER/C1 - Incorrect zero values reported
Affected Datastreams: sgpdisdrometerC1.b1
Description The instrument reports all zeros for the last 2/3 of each hour.
Measurements
  • precip_dis (Precipitation)
  • distribution_slope (Distribution slope)
  • number_density (Number density)
  • energy_flux (Energy flux)
  • rain_rate (Rain rate)
  • radar_reflectivity (Radar reflectivity)
  • liq_water (Liquid water content)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D150716.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-06-09 00:00:00 2015-07-08 18:00:00 Incorrect
Subject: SGP/DISDROMETER/C1 - Communication failure
Affected Datastreams: sgpdisdrometerC1.b1
Description A communication failure halted data collection over this period of time. The problem was resolved on July 8, 2015 but the proper functioning of the device was not confirmed until the rain event of July 16, 2015.
Measurements
  • distribution_intercept (Distribution intercept)
  • number_density (Number density)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • distribution_slope (Distribution slope)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • liq_water (Liquid water content)
  • radar_reflectivity (Radar reflectivity)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • precip_dis (Precipitation)
 
DQR ID: D140801.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-06-09 20:58:00 2014-06-10 12:36:00 Missing
2014-06-07 02:28:00 2014-06-09 12:29:00 Missing
2014-06-24 17:45:00 2014-06-24 22:19:00 Missing
2014-06-20 14:51:00 2014-06-23 11:36:00 Missing
Subject: SGP/DISDROMETER/C1 - Data collections issues resulted in loss of data
Affected Datastreams: sgpdisdrometerC1.b1
Description Data collections terminated for unknown reason.
Measurements
  • lon (East longitude)
  • distribution_slope (Distribution slope)
  • delta_diam (Diameter interval between drop size classes)
  • mean_diam_drop_class (Diameter of drop size class)
  • number_density (Number density)
  • energy_flux (Energy flux)
  • base_time (Base time in Epoch)
  • time (Time offset from midnight)
  • rain_rate (Rain rate)
  • time_offset (Time offset from base_time)
  • fall_velocity (Fall velocity)
  • lat (North latitude)
  • liq_water (Liquid water content)
  • drop_class (Drop class)
  • precip_dis (Precipitation)
  • radar_reflectivity (Radar reflectivity)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • alt (Altitude above mean sea level)
  • distribution_intercept (Distribution intercept)
 
DQR ID: D120917.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-06-12 00:00:00 2012-07-24 23:59:00 Incorrect
Subject: SGP/DISDROMETER/C1 - Precipitation events not recorded
Affected Datastreams: sgpdisdrometerC1.b1
Description The instrument was not recording precipitation events seen by other co-located instruments.
Measurements
  • distribution_intercept (Distribution intercept)
  • number_density (Number density)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • distribution_slope (Distribution slope)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • liq_water (Liquid water content)
  • radar_reflectivity (Radar reflectivity)
  • num_drop (Number of drops)
  • diam_max (Diameter of largest drop)
  • precip_dis (Precipitation)
 
DQR ID: D140909.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-06-28 00:00:00 2014-07-08 15:00:00 Incorrect
Subject: SGP/DISDROMETER/C1 - Data collections issue resulted in incorrect data
Affected Datastreams: sgpdisdrometerC1.b1
Description Connections issue resulted in incorrect data.
Measurements
  • number_density (Number density)
  • mean_diam_drop_class (Diameter of drop size class)
  • delta_diam (Diameter interval between drop size classes)
  • distribution_slope (Distribution slope)
  • diam_max (Diameter of largest drop)
  • energy_flux (Energy flux)
  • drop_class (Drop class)
  • rain_rate (Rain rate)
  • fall_velocity (Fall velocity)
  • liq_water (Liquid water content)
  • radar_reflectivity (Radar reflectivity)
  • num_drop (Number of drops)
  • distribution_intercept (Distribution intercept)
  • precip_dis (Precipitation)
 
DQR ID: D091106.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2008-06-01 00:00:00 2009-07-01 00:00:00 Suspect
Subject: SGP/DISDROMETER/C1 - False reports of precip
Affected Datastreams: sgpdisdrometerC1.b1
Description A number of days during this period show indications of rain on dry days. This occurred during windy periods when vibrations of the splash guard resulted in many small drops being recorded. The splash guard has been removed and the Instrument Handbook has been updated with a larger section describing this issue (Section 5.3 on known problems).
Measurements
  • n_0 (Distribution intercept)
  • d_max (Diameter of largest drop)
  • rain_rate (Rain rate)
  • liq_water (Liquid water content)
  • nd (Number density)
  • num_drop (Number of drops)
  • precip_dis (Precipitation)