Data Quality Report

Data Quality Report for Order ID: 187464
User ID: wangd2 Date completed: 2017-08-28

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D170310.16	SGP/Central Facility - Power Outage	sgpirt25m20sC1.a0	Note
D170428.2	SGP/LDIS/E13 - Spider webs in the field of view	sgppars2E13.b1	Suspect
D170303.8	SGP/LDIS/C1/E13 - Missing data points due to network issues	sgppars2E13.b1	Note

DQR ID: D170310.16 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-03-05	00:23:01	2017-03-09	14:30:21	Note

Subject:	SGP/Central Facility - Power Outage
Affected Datastreams:	sgpirt25m20sC1.a0
Description	Automated scripts show that these instruments were affected by a power outage at the central facility resulting in missing data. Most of the instruments came back online on March 6th but some took longer.
Measurements	equivalent_radar_reflectivity_ott (Radar reflectivity from the manufacturer's software) median_volume_diameter (Median volume diameter, assuming an ideal Marshall-Palmer type distribution) particle_size (Particle class size average) liquid_water_distribution_mean (Liquid water distribution mean, assuming an ideal Marshall-Palmer type distribution) liquid_water_content (Liquid water content) moment3 (Moment 3 from the observed distribution) class_size_width (Class size width) lon (East longitude) diameter_max (Diameter of largest drop observed) time (Time offset from midnight) lat (North latitude) raw_spectrum (Raw drop size distribution) intercept_parameter (Intercept parameter, assuming an ideal Marshall-Palmer type distribution) slope_parameter (Slope parameter, assuming an ideal Marshall-Palmer type distribution) heating_current (Heating current) raw_fall_velocity (Fall velocity classes observed by Parsivel2) base_time (Base time in Epoch) precip_rate (Precipitation intensity) alt (Altitude above mean sea level) number_detected_particles (Number of particles detected) fall_velocity_calculated (Fall velocity calculated after Lhermite) time_offset (Time offset from base_time) moment6 (Moment 6 from the observed distribution) equivalent_radar_reflectivity (Radar reflectivity calculated by the ingest) moment5 (Moment 5 from the observed distribution) number_density_drops (Number density of drops of the diameter corresponding to a particular drop size class per unit volume) sensor_temperature (Temperature in sensor) moment2 (Moment 2 from the observed distribution) qc_time (Quality check results on field: Time offset from midnight) moment1 (Moment 1 from the observed distribution) diameter_min (Diameter of smallest drop observed) sensor_voltage (Sensor voltage) laserband_amplitude (Laserband amplitude) moment4 (Moment 4 from the observed distribution) mor_visibility (Meteorological optical range visibility) weather_code (SYNOP WaWa Table 4680)

DQR ID: D170428.2 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-04-25	21:52:00	2017-04-26	15:30:00	Suspect

Subject:	SGP/LDIS/E13 - Spider webs in the field of view
Affected Datastreams:	sgppars2E13.b1
Description	Spider webs in the field of view lead to false positive observations of rainfall.
Measurements	equivalent_radar_reflectivity_ott (Radar reflectivity from the manufacturer's software) raw_fall_velocity (Fall velocity classes observed by Parsivel2) diameter_max (Diameter of largest drop observed) median_volume_diameter (Median volume diameter, assuming an ideal Marshall-Palmer type distribution) precip_rate (Precipitation intensity) liquid_water_distribution_mean (Liquid water distribution mean, assuming an ideal Marshall-Palmer type distribution) raw_spectrum (Raw drop size distribution) intercept_parameter (Intercept parameter, assuming an ideal Marshall-Palmer type distribution) moment2 (Moment 2 from the observed distribution) number_detected_particles (Number of particles detected) moment1 (Moment 1 from the observed distribution) diameter_min (Diameter of smallest drop observed) liquid_water_content (Liquid water content) moment6 (Moment 6 from the observed distribution) moment4 (Moment 4 from the observed distribution) weather_code (SYNOP WaWa Table 4680) moment3 (Moment 3 from the observed distribution) mor_visibility (Meteorological optical range visibility) equivalent_radar_reflectivity (Radar reflectivity calculated by the ingest) moment5 (Moment 5 from the observed distribution) number_density_drops (Number density of drops of the diameter corresponding to a particular drop size class per unit volume)

DQR ID: D170303.8 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-12-11	00:00:00	2017-02-24	00:00:00	Note

Subject:	SGP/LDIS/C1/E13 - Missing data points due to network issues
Affected Datastreams:	sgppars2E13.b1
Description	During this period (1 to 20 or so) data points are missing due to network issues. The rest of the data are fine.
Measurements	equivalent_radar_reflectivity_ott (Radar reflectivity from the manufacturer's software) median_volume_diameter (Median volume diameter, assuming an ideal Marshall-Palmer type distribution) liquid_water_distribution_mean (Liquid water distribution mean, assuming an ideal Marshall-Palmer type distribution) particle_size (Particle class size average) liquid_water_content (Liquid water content) moment3 (Moment 3 from the observed distribution) class_size_width (Class size width) diameter_max (Diameter of largest drop observed) raw_spectrum (Raw drop size distribution) intercept_parameter (Intercept parameter, assuming an ideal Marshall-Palmer type distribution) slope_parameter (Slope parameter, assuming an ideal Marshall-Palmer type distribution) heating_current (Heating current) raw_fall_velocity (Fall velocity classes observed by Parsivel2) precip_rate (Precipitation intensity) number_detected_particles (Number of particles detected) fall_velocity_calculated (Fall velocity calculated after Lhermite) moment6 (Moment 6 from the observed distribution) equivalent_radar_reflectivity (Radar reflectivity calculated by the ingest) moment5 (Moment 5 from the observed distribution) number_density_drops (Number density of drops of the diameter corresponding to a particular drop size class per unit volume) sensor_temperature (Temperature in sensor) moment2 (Moment 2 from the observed distribution) moment1 (Moment 1 from the observed distribution) diameter_min (Diameter of smallest drop observed) sensor_voltage (Sensor voltage) laserband_amplitude (Laserband amplitude) moment4 (Moment 4 from the observed distribution) weather_code (SYNOP WaWa Table 4680) mor_visibility (Meteorological optical range visibility)