Data Quality Reports for Session: 184387 User: bart Completed: 03/20/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D120214.1TWP/VDIS/C3 - Missing datatwpvdisdropsC3.b1, twpvdisC3.b1Missing
D121206.1TWP/VDIS/C1 - Missing datatwpvdisdropsC1.b1, twpvdisC1.b1Missing
D131018.4TWP/VDIS/C1 - Lightbulb failurestwpvdisdropsC1.b1, twpvdisC1.b1Incorrect
D140106.1TWP/VDIS/C3 - Missing datatwpvdisdropsC3.b1, twpvdisC3.b1Missing
D140317.2TWP/VDIS/C1/C3 - Reprocessing Notice (RID 1104)twpvdisC1.b1, twpvdisC3.b1Does not affect quality
D140410.1TWP/VDIS/C1 - poor alignment or failed light source resulted in loss of datatwpvdisdropsC1.b1, twpvdisC1.b1Missing


DQRID : D120214.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/19/2011000008/30/20112359Missing
Subject:
TWP/VDIS/C3 - Missing data
DataStreams:twpvdisdropsC3.b1, twpvdisC3.b1
Description:
Data are missing and unrecoverable
Measurements:twpvdisdropsC3.b1:
  • time
  • Oblateness(oblateness)
  • East longitude(lon)
  • Individual drop width as measured by camera B(drop_width_b)
  • Individual drop width as measured by camera A(drop_width_a)
  • base_time
  • Drop volume(drop_volume)
  • time_offset
  • Fall speed(fall_speed)
  • Altitude above mean sea level(alt)
  • Equivolumetric sphere diameter(equivolumetric_sphere_diameter)
  • North latitude(lat)
  • area
  • Individual drop height as measured by camera A(drop_height_a)
  • Individual drop height as measured by camera B(drop_height_b)
twpvdisC3.b1:
  • time_offset
  • Number density(num_density)
  • Rainfall rate(rain_rate)
  • HLN(VN)
  • Sum of num_drops(total_drops)
  • Intercept parameter, assuming an ideal Marshall-Palmer type distribution(intercept_parameter)
  • Rain amount(rain_amount)
  • diameter_max
  • Moment 3 from the observed distribution(moment3)
  • Slope parameter, assuming an ideal Marshall-Palmer type distribution(slope_parameter)
  • Moment 2 from the observed distribution(moment2)
  • Moment 1 from the observed distribution(moment1)
  • time
  • North latitude(lat)
  • East longitude(lon)
  • Median volume diameter, assuming an ideal Marshall-Palmer type distribution(median_volume_diameter)
  • Retrieved Liquid Water Content(liquid_water_content)
  • Moment 4 from the observed distribution(moment4)
  • drop_diameter
  • radar_reflectivity
  • Moment 5 from the observed distribution(moment5)
  • Liquid water distribution mean, assuming an ideal Marshall-Palmer type
    distribution(liquid_water_distribution_mean)
  • Moment 6 from the observed distribution(moment6)
  • base_time
  • Altitude above mean sea level(alt)
  • Number of drops per bin(num_drops)
  • diameter_min

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DQRID : D121206.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/24/2012000003/25/20122359Missing
02/21/2012000002/21/20122359Missing
05/05/2013000005/15/20132359Missing
04/29/2012000005/02/20122359Missing
11/14/2012000011/28/20122359Missing
07/07/2012000007/08/20122359Missing
12/04/2012000012/04/20122359Missing
07/29/2012000008/01/20122359Missing
10/16/2012000010/18/20122359Missing
12/17/2012000012/18/20122359Missing
06/14/2012000006/17/20122359Missing
05/23/2012000005/26/20122359Missing
06/29/2012000007/04/20122359Missing
09/15/2012000009/16/20122359Missing
06/02/2013000006/05/20132359Missing
05/13/2012000005/16/20122359Missing
07/19/2012000007/22/20122359Missing
11/08/2012000011/08/20122359Missing
04/01/2012000004/03/20122359Missing
05/19/2012000005/20/20122359Missing
04/06/2012000004/09/20122359Missing
01/23/2012000001/26/20122359Missing
08/07/2012000008/09/20122359Missing
07/23/2012000007/26/20122359Missing
03/04/2012000003/06/20122359Missing
10/24/2012000010/28/20122359Missing
07/10/2012000007/11/20122359Missing
10/04/2012000010/04/20122359Missing
12/21/2012000012/21/20122359Missing
03/28/2012000003/29/20122359Missing
08/12/2012000008/14/20122359Missing
Subject:
TWP/VDIS/C1 - Missing data
DataStreams:twpvdisdropsC1.b1, twpvdisC1.b1
Description:
Data are missing and unrecoverable.
Measurements:twpvdisdropsC1.b1:
  • Altitude above mean sea level(alt)
  • Drop volume(drop_volume)
  • Fall speed(fall_speed)
  • Individual drop width as measured by camera B(drop_width_b)
  • Individual drop width as measured by camera A(drop_width_a)
  • North latitude(lat)
  • time
  • Oblateness(oblateness)
  • area
  • Individual drop height as measured by camera B(drop_height_b)
  • Individual drop height as measured by camera A(drop_height_a)
  • Equivolumetric sphere diameter(equivolumetric_sphere_diameter)
  • East longitude(lon)
  • base_time
  • time_offset
twpvdisC1.b1:
  • Retrieved Liquid Water Content(liquid_water_content)
  • Intercept parameter, assuming an ideal Marshall-Palmer type distribution(intercept_parameter)
  • North latitude(lat)
  • East longitude(lon)
  • time
  • base_time
  • radar_reflectivity
  • Sum of num_drops(total_drops)
  • Rain amount(rain_amount)
  • Number density(num_density)
  • diameter_max
  • Moment 1 from the observed distribution(moment1)
  • Moment 5 from the observed distribution(moment5)
  • Median volume diameter, assuming an ideal Marshall-Palmer type distribution(median_volume_diameter)
  • Moment 4 from the observed distribution(moment4)
  • Moment 3 from the observed distribution(moment3)
  • Moment 2 from the observed distribution(moment2)
  • Liquid water distribution mean, assuming an ideal Marshall-Palmer type
    distribution(liquid_water_distribution_mean)
  • drop_diameter
  • Moment 6 from the observed distribution(moment6)
  • Number of drops per bin(num_drops)
  • time_offset
  • Slope parameter, assuming an ideal Marshall-Palmer type distribution(slope_parameter)
  • Altitude above mean sea level(alt)
  • diameter_min
  • Rainfall rate(rain_rate)

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DQRID : D131018.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/01/2013000010/17/20132359Incorrect
Subject:
TWP/VDIS/C1 - Lightbulb failures
DataStreams:twpvdisdropsC1.b1, twpvdisC1.b1
Description:
VDIS was not comparing well to the local MET TBRG at C1. Most weeks had mulitple days that 
were above/below the allowable +/-50% difference between the VDIS and the MET. Several 
days had no data recorded as well.

Sample July/August differences:
-7/1 VDIS recording 163% of MET TBRG
-7/2 VDIS recording 2% of MET TBRG
-7/5 no data found 
-7/6 VDIS recording 191% of MET TBRG
-7/10 VDIS recording 2% of MET TBRG
-7/11 no data found
-7/12 VDIS recording 6% of MET TBRG
-7/17 VDIS recording 37% of MET TBRG 
-7/26 no data found
-7/27 VDIS recording 0% of MET TBRG
-7/28 VDIS recording 0.16% of MET TBRG
-8/2 no data found 
-8/12 VDIS recording 33% of MET TBRG
-8/13 VDIS recording 0% of MET TBRG
-8/16 VDIS recording 13% of MET TBRG 
-8/17-8/18, 8/22-8/23 no data found
-8/19 VDIS recording 1% of MET TBRG
-8/21 VDIS recording 45% of MET TBRG 
-8/24-8/25 no data found

The instrument was having light bulb problems.  Repaired and calibrationed in October 
2013.
Measurements:twpvdisdropsC1.b1:
  • Drop volume(drop_volume)
  • Fall speed(fall_speed)
  • Individual drop width as measured by camera B(drop_width_b)
  • Individual drop width as measured by camera A(drop_width_a)
  • Oblateness(oblateness)
  • area
  • Individual drop height as measured by camera B(drop_height_b)
  • Individual drop height as measured by camera A(drop_height_a)
  • Equivolumetric sphere diameter(equivolumetric_sphere_diameter)
twpvdisC1.b1:
  • Retrieved Liquid Water Content(liquid_water_content)
  • Intercept parameter, assuming an ideal Marshall-Palmer type distribution(intercept_parameter)
  • radar_reflectivity
  • Rain amount(rain_amount)
  • Number density(num_density)
  • diameter_max
  • Moment 1 from the observed distribution(moment1)
  • Moment 5 from the observed distribution(moment5)
  • Median volume diameter, assuming an ideal Marshall-Palmer type distribution(median_volume_diameter)
  • Moment 4 from the observed distribution(moment4)
  • Moment 3 from the observed distribution(moment3)
  • Moment 2 from the observed distribution(moment2)
  • Liquid water distribution mean, assuming an ideal Marshall-Palmer type
    distribution(liquid_water_distribution_mean)
  • drop_diameter
  • Moment 6 from the observed distribution(moment6)
  • Number of drops per bin(num_drops)
  • Slope parameter, assuming an ideal Marshall-Palmer type distribution(slope_parameter)
  • diameter_min
  • Rainfall rate(rain_rate)

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DQRID : D140106.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/30/2013000001/05/20142330Missing
Subject:
TWP/VDIS/C3 - Missing data
DataStreams:twpvdisdropsC3.b1, twpvdisC3.b1
Description:
Data are missing and unrecoverable. 

No signal from camera B. Camera B lamp was replaced and aligned and instrument was 
returned to service.
Measurements:twpvdisdropsC3.b1:
  • time
  • Oblateness(oblateness)
  • East longitude(lon)
  • Individual drop width as measured by camera B(drop_width_b)
  • Individual drop width as measured by camera A(drop_width_a)
  • base_time
  • Drop volume(drop_volume)
  • time_offset
  • Fall speed(fall_speed)
  • Altitude above mean sea level(alt)
  • Equivolumetric sphere diameter(equivolumetric_sphere_diameter)
  • North latitude(lat)
  • area
  • Individual drop height as measured by camera A(drop_height_a)
  • Individual drop height as measured by camera B(drop_height_b)
twpvdisC3.b1:
  • time_offset
  • Number density(num_density)
  • Rainfall rate(rain_rate)
  • Sum of num_drops(total_drops)
  • Intercept parameter, assuming an ideal Marshall-Palmer type distribution(intercept_parameter)
  • Rain amount(rain_amount)
  • diameter_max
  • Moment 3 from the observed distribution(moment3)
  • Slope parameter, assuming an ideal Marshall-Palmer type distribution(slope_parameter)
  • Moment 2 from the observed distribution(moment2)
  • Moment 1 from the observed distribution(moment1)
  • time
  • North latitude(lat)
  • East longitude(lon)
  • Median volume diameter, assuming an ideal Marshall-Palmer type distribution(median_volume_diameter)
  • Retrieved Liquid Water Content(liquid_water_content)
  • Moment 4 from the observed distribution(moment4)
  • drop_diameter
  • radar_reflectivity
  • Liquid water distribution mean, assuming an ideal Marshall-Palmer type
    distribution(liquid_water_distribution_mean)
  • Moment 5 from the observed distribution(moment5)
  • Moment 6 from the observed distribution(moment6)
  • base_time
  • Altitude above mean sea level(alt)
  • Number of drops per bin(num_drops)
  • diameter_min

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DQRID : D140317.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/01/2011000003/03/20142359Does not affect quality
Subject:
TWP/VDIS/C1/C3 - Reprocessing Notice (RID 1104)
DataStreams:twpvdisC1.b1, twpvdisC3.b1
Description:
See below for details of reprocessing that was completed on 20140902.  Original DQR 
category: 4 (Red, Incorrect).

-----------------------------------------------------------

The reported rain rates are off by one minute and some large number density values are 
missing.
Measurements:twpvdisC3.b1:
  • Number density(num_density)
  • Rainfall rate(rain_rate)
twpvdisC1.b1:
  • Number density(num_density)
  • Rainfall rate(rain_rate)

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DQRID : D140410.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/05/2014000004/05/20142359Missing
03/29/2014000003/29/20142359Missing
03/01/2014000003/03/20142359Missing
Subject:
TWP/VDIS/C1 - poor alignment or failed light source resulted in loss of data
DataStreams:twpvdisdropsC1.b1, twpvdisC1.b1
Description:
No data are available when the alignment or light source fails.
Measurements:twpvdisdropsC1.b1:
  • Altitude above mean sea level(alt)
  • Drop volume(drop_volume)
  • Fall speed(fall_speed)
  • Individual drop width as measured by camera B(drop_width_b)
  • Individual drop width as measured by camera A(drop_width_a)
  • North latitude(lat)
  • time
  • Oblateness(oblateness)
  • area
  • Individual drop height as measured by camera B(drop_height_b)
  • Individual drop height as measured by camera A(drop_height_a)
  • Equivolumetric sphere diameter(equivolumetric_sphere_diameter)
  • East longitude(lon)
  • base_time
  • time_offset
twpvdisC1.b1:
  • Retrieved Liquid Water Content(liquid_water_content)
  • Intercept parameter, assuming an ideal Marshall-Palmer type distribution(intercept_parameter)
  • North latitude(lat)
  • East longitude(lon)
  • time
  • base_time
  • radar_reflectivity
  • Sum of num_drops(total_drops)
  • Rain amount(rain_amount)
  • Number density(num_density)
  • diameter_max
  • Moment 1 from the observed distribution(moment1)
  • Moment 5 from the observed distribution(moment5)
  • Median volume diameter, assuming an ideal Marshall-Palmer type distribution(median_volume_diameter)
  • Moment 4 from the observed distribution(moment4)
  • Moment 3 from the observed distribution(moment3)
  • Moment 2 from the observed distribution(moment2)
  • Liquid water distribution mean, assuming an ideal Marshall-Palmer type
    distribution(liquid_water_distribution_mean)
  • drop_diameter
  • Moment 6 from the observed distribution(moment6)
  • Number of drops per bin(num_drops)
  • time_offset
  • Slope parameter, assuming an ideal Marshall-Palmer type distribution(slope_parameter)
  • Altitude above mean sea level(alt)
  • diameter_min
  • Rainfall rate(rain_rate)

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END OF DATA