Data Quality Report for Order ID: 187007
User ID: silberi1    Date completed: 2017-08-02
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D111214.1 TWP/MWR/C1 - Rain events not flagged twpmwrlosC1.b1 Note
D120501.2 TWP/GNDRAD/C1 - IRT failure twpgndrad60sC1.b1 Incorrect
D120228.5 TWP/MPLCMASK/C1 - Reprocess: Backscatter signals not set to missing when beam blocked twp30smplcmask1zwangC1.c1 Note
D120904.1 TWP/MET/C1 - Blockage in tipping bucket rain gauge twpmetC1.b1 Suspect
D120625.1 TWP/MWR/C1 - Erratic surface temperature readings twpmwrlosC1.b1 Incorrect
D110221.2 TWP/MWR/C1 - Intermittent data due to computer problems twpmwrtipC1.a1 Suspect
D120914.2 TWP/MPLCMASK/C1 - Polarization failure twp30smplcmask1zwangC1.c1 Incorrect
D070105.1 TWP/MWR/C1 - Missing data twpmwrtipC1.a1 Missing
D120501.3 TWP/SKYRAD/C1 - IRT failure twpskyrad60sC1.b1 Incorrect
D140616.1 TWP/MPLCMASK/C1/C2/C3 - Reprocessing Notice (RID 1148) twp30smplcmask1zwangC1.c1 Note
D070412.3 TWP/MWR/C1/C2 - Sun in the field of view twpmwrlosC2.b1 Suspect
D120914.1 TWP/MPLCMASK/C1 - Missing data twp30smplcmask1zwangC1.c1 Missing
D110318.2 TWP/CEIL/C1 - Missing data twpceilC1.b1 Missing
D120917.1 TWP/MWR/C1 - Spikes in temperature sensor readings twpmwrtipC1.a1 Suspect
 
DQR ID: D111214.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-11-09 00:00:00 2011-11-30 23:59:00 Note
Subject: TWP/MWR/C1 - Rain events not flagged
Affected Datastreams: twpmwrlosC1.b1
Description On some occasions the rain flag did not flag data during likely rain events. Users should carefully examine the data to ensure that they are not contaminated by rain. Also examine the brightness temperature qc variables.
Measurements
  • tbsky23 (23.8 GHz sky brightness temperature)
  • vap (Total water vapor along LOS path)
  • liq (Total liquid water along LOS path)
  • tbsky31 (31.4 GHz sky brightness temperature)
 
DQR ID: D120501.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-09-07 04:42:00 2011-10-26 02:35:00 Incorrect
Subject: TWP/GNDRAD/C1 - IRT failure
Affected Datastreams: twpgndrad60sC1.b1
Description The IRT and power cable failed and were replaced.
Measurements
  • sfc_ir_temp_std (Surface Infra-Red Temperature, Standard Deviation)
  • sfc_ir_temp_max (Surface Infra-Red Temperature Maxima)
  • sfc_ir_temp (Surface Infra-Red Temperature)
  • sfc_ir_temp_min (Surface Infra-Red Temperature Minima)
 
DQR ID: D120228.5    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
1999-08-10 00:00:00 2014-07-06 23:59:30 Note
Subject: TWP/MPLCMASK/C1 - Reprocess: Backscatter signals not set to missing when beam blocked
Affected Datastreams: twp30smplcmask1zwangC1.c1
Description The backscatter signals are flagged as missing when the beam is blocked. For the historical data, this functionality was not implemented (when the VAP uses MPL as input). This flag is not very reliable since it is based on the signal strength during the beam blocked conditions.
Measurements
  • backscatter (Total attenuated backscatter)
  • backscatter (Backscatter)
 
DQR ID: D120904.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-07-25 00:00:00 2012-08-23 23:59:00 Suspect
Subject: TWP/MET/C1 - Blockage in tipping bucket rain gauge
Affected Datastreams: twpmetC1.b1
Description Debris in the tipping bucket rain gauge caused slow filtration of precip. As a result, the tipping mechanism was slow to tip and register timely precipitation values.
Measurements
  • tbrg_precip_count (TBRG bucket tip count total)
  • tbrg_precip_total (TBRG precipitation total)
 
DQR ID: D120625.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-05-14 00:00:00 2012-06-21 00:00:00 Incorrect
Subject: TWP/MWR/C1 - Erratic surface temperature readings
Affected Datastreams: twpmwrlosC1.b1
Description The surface temperature readings were erratic at times between 5/14 and 6/21.
Measurements
  • tkair (Ambient temperature)
 
DQR ID: D110221.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-01-07 03:11:00 2011-01-09 05:00:00 Suspect
Subject: TWP/MWR/C1 - Intermittent data due to computer problems
Affected Datastreams: twpmwrtipC1.a1
Description Between 1/7 and 1/9 there are large segments of data missing because of a computer problem.
Measurements
  • bb31 (31.4 GHz Blackbody signal)
  • bbn23 (23.8 GHz blackbody+noise injection signal)
  • tkxc (Mixer kinetic (physical) temperature)
  • tbsky23 (23.8 GHz sky brightness temperature)
  • tc23 (Temperature correction coefficient at 23.8 GHz)
  • sky_ir_temp (Sky/Cloud Infrared Temperature)
  • sky31 (31.4 GHz sky signal)
  • tnd_nom31 (Noise injection temp at nominal temperature at 31.4 GHz)
  • sky_ir_temp (IR Brightness Temperature)
  • time_offset (Time offset from base_time)
  • bbn31 (31.4 GHz blackbody+noise injection signal)
  • liq (Total liquid water along LOS path)
  • vap (Total water vapor along LOS path)
  • tbsky31 (31.4 GHz sky brightness temperature)
  • wet_window (Water on Teflon window (1=WET, 0=DRY))
  • sky23 (23.8 GHz sky signal)
  • tnd31 (Noise injection temp at 31.4 GHz adjusted to tkbb)
  • tkbb (Blackbody kinetic temperature)
  • tknd (Noise diode mount temperature)
  • base_time (Base time in Epoch)
  • alt (Altitude above mean sea level)
  • lon (East longitude)
  • bb23 (23.8 GHz Blackbody signal)
  • tkair (Ambient temperature)
  • tc31 (Temperature correction coefficient at 31.4 GHz)
  • tnd23 (Noise injection temp at 23.8 GHz adjusted to tkbb)
  • tnd_nom23 (Noise injection temp at nominal temperature at 23.8 GHz)
  • lat (North latitude)
 
DQR ID: D120914.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-10-01 00:00:00 2012-05-02 23:59:00 Incorrect
Subject: TWP/MPLCMASK/C1 - Polarization failure
Affected Datastreams: twp30smplcmask1zwangC1.c1
Description MPLPOL polarization began to fail with cross_pol and co_pol modes both returning identical scatter. Instrument replaced 20120502. More information available in DQR D120411.1
Measurements
  • linear_depol_ratio (Linear depolarization ratio)
  • linear_depol_snr (Signal to noise ratio for the linear depolarization ratio)
  • qc_linear_depol_ratio (Quality check results on field: Linear depolarization ratio)
  • qc_linear_depol_snr (Quality check results on field: Signal to noise ratio for the linear depolarization ratio)
 
DQR ID: D070105.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-02-25 13:00:00 2011-03-07 04:00:00 Missing
1998-09-13 07:59:00 1998-09-20 09:00:00 Missing
1999-09-03 03:00:00 1999-09-10 04:00:00 Missing
1999-10-01 09:00:00 1999-10-18 00:00:00 Missing
2011-03-16 19:00:00 2011-03-31 01:00:00 Missing
2006-01-14 12:58:00 2006-01-16 06:38:00 Missing
2013-10-25 18:00:00 2013-10-28 00:26:00 Missing
1998-11-20 22:26:00 1998-11-27 10:26:00 Missing
1998-01-05 02:04:00 1998-01-08 20:48:00 Missing
1999-10-20 05:00:00 1999-10-22 06:00:00 Missing
2000-01-14 08:00:00 2000-01-16 03:42:00 Missing
1999-03-06 08:00:00 1999-03-09 18:07:00 Missing
2013-03-24 00:00:00 2013-05-04 02:00:00 Missing
2011-01-05 23:00:00 2011-01-07 03:10:00 Missing
2011-10-22 22:00:00 2011-10-25 04:00:00 Missing
1996-12-09 23:38:00 1996-12-11 00:03:00 Missing
1997-02-28 01:18:00 1997-06-27 20:48:00 Missing
1997-11-06 19:59:00 1997-11-12 18:00:00 Missing
1998-04-21 00:17:00 1998-04-29 18:03:00 Missing
1999-02-27 06:00:00 1999-03-02 01:59:00 Missing
Subject: TWP/MWR/C1 - Missing data
Affected Datastreams: twpmwrtipC1.a1
Description Data are missing and unrecoverable.
Measurements
  • bb31 (31.4 GHz Blackbody signal)
  • bbn23 (23.8 GHz blackbody+noise injection signal)
  • tkxc (Mixer kinetic (physical) temperature)
  • tbsky23 (23.8 GHz sky brightness temperature)
  • tc23 (Temperature correction coefficient at 23.8 GHz)
  • sky_ir_temp (Sky/Cloud Infrared Temperature)
  • sky31 (31.4 GHz sky signal)
  • tnd_nom31 (Noise injection temp at nominal temperature at 31.4 GHz)
  • sky_ir_temp (IR Brightness Temperature)
  • time_offset (Time offset from base_time)
  • bbn31 (31.4 GHz blackbody+noise injection signal)
  • liq (Total liquid water along LOS path)
  • vap (Total water vapor along LOS path)
  • tbsky31 (31.4 GHz sky brightness temperature)
  • wet_window (Water on Teflon window (1=WET, 0=DRY))
  • sky23 (23.8 GHz sky signal)
  • tnd31 (Noise injection temp at 31.4 GHz adjusted to tkbb)
  • tkbb (Blackbody kinetic temperature)
  • tknd (Noise diode mount temperature)
  • base_time (Base time in Epoch)
  • alt (Altitude above mean sea level)
  • lon (East longitude)
  • bb23 (23.8 GHz Blackbody signal)
  • tkair (Ambient temperature)
  • tc31 (Temperature correction coefficient at 31.4 GHz)
  • tnd23 (Noise injection temp at 23.8 GHz adjusted to tkbb)
  • tnd_nom23 (Noise injection temp at nominal temperature at 23.8 GHz)
  • lat (North latitude)
 
DQR ID: D120501.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-09-23 05:25:00 2011-10-27 00:18:00 Incorrect
Subject: TWP/SKYRAD/C1 - IRT failure
Affected Datastreams: twpskyrad60sC1.b1
Description The IRT failed and was replaced.
Measurements
  • sky_ir_temp_std (Sky/Cloud Infrared Temperature Standard Deviation)
  • sky_ir_temp (IR Brightness Temperature)
  • sky_ir_temp_max (Sky/Cloud Infrared Temperature Maxima)
  • sky_ir_temp_min (Sky/Cloud Infrared Temperature Minima)
  • sky_ir_temp (Sky/Cloud Infrared Temperature)
 
DQR ID: D140616.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2006-08-31 00:00:00 2014-06-06 23:59:59 Note
Subject: TWP/MPLCMASK/C1/C2/C3 - Reprocessing Notice (RID 1148)
Affected Datastreams: twp30smplcmask1zwangC1.c1
Description See below for details of reprocessing that was completed on 20140822. Original DQR category: 4 (Red, Incorrect ). ----------------------------------------------------------- The Linear depolarization ratio calculation in the VAP is incorrect.
Measurements
  • linear_depol_ratio (Linear depolarization ratio)
 
DQR ID: D070412.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2008-03-01 00:00:00 2008-04-02 23:59:00 Suspect
2008-09-10 00:00:00 2008-10-12 00:00:00 Suspect
2011-09-13 00:00:00 2011-10-09 00:00:00 Suspect
2009-03-01 00:00:00 2009-04-02 23:59:00 Suspect
2011-03-01 00:00:00 2011-04-02 23:59:00 Suspect
2009-09-11 00:00:00 2009-10-10 23:59:00 Suspect
2010-03-01 00:00:00 2010-04-02 23:59:00 Suspect
2007-03-07 00:00:00 2007-04-02 23:59:00 Suspect
Subject: TWP/MWR/C1/C2 - Sun in the field of view
Affected Datastreams: twpmwrlosC2.b1
Description Every day between around noon local time (usually between 1 and 2 AM UTC time) there is an increase in the brightness temperatures due to the sun in the field of view of the radiometer. The effect lasts less than an hour around local noon (usually between 1 and 2 AM UTC time). The effect appears as a smooth increase and decrease in brightness temperature.
Measurements
  • vap (Total water vapor along LOS path)
  • tbsky31 (31.4 GHz sky brightness temperature)
  • sky31 (31.4 GHz sky signal)
  • tbsky23 (23.8 GHz sky brightness temperature)
  • sky23 (23.8 GHz sky signal)
  • liq (Total liquid water along LOS path)
 
DQR ID: D120914.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-07-08 09:00:00 2012-08-21 23:59:00 Missing
Subject: TWP/MPLCMASK/C1 - Missing data
Affected Datastreams: twp30smplcmask1zwangC1.c1
Description Data are missing and unrecoverable due to missing critical input data.
Measurements
  • qc_linear_depol_snr (Quality check results on field: Signal to noise ratio for the linear depolarization ratio)
  • cloud_top_attenuation_flag (Flag indicating whether the beam was extinguished at indicated cloud top)
  • qc_backscatter_snr (Quality check results on field: Signal to noise ratio of backscatter)
  • cloud_base (Lowest cloud base height above ground level (AGL))
  • overlap_correction (Overlap correction)
  • qc_backscatter (Quality check results on field: Total attenuated backscatter)
  • height (Vertical height above ground level (AGL) corresponding to the bottom of height bin)
  • cloud_top (Highest cloud top height above ground level (AGL))
  • qc_cloud_mask (Quality check results on field: Cloud mask)
  • time_offset (Time offset from base_time)
  • backscatter (Total attenuated backscatter)
  • background_signal (Background signal)
  • backscatter (Backscatter)
  • deadtime_correction_counts (Laboratory measured counts used to calculate the deadtime correction samples)
  • cloud_base_layer (Cloud base for each layer)
  • linear_depol_snr (Signal to noise ratio for the linear depolarization ratio)
  • afterpulse_correction (Detector afterpulse from laser flash)
  • cloud_mask (Cloud mask)
  • backscatter_snr (Signal to noise ratio of backscatter)
  • cloud_top_layer (Cloud top for each layer above ground level (AGL))
  • linear_depol_ratio (Linear depolarization ratio)
  • deadtime_correction (Deadtime correction factor)
  • base_time (Base time in Epoch)
  • alt (Altitude above mean sea level)
  • shots_summed (Number of lidar pulses summed)
  • lon (East longitude)
  • qc_linear_depol_ratio (Quality check results on field: Linear depolarization ratio)
  • num_cloud_layers (Number of cloud layers)
  • lat (North latitude)
  • time (Time offset from midnight)
 
DQR ID: D110318.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
1997-05-06 01:00:00 1997-05-10 19:52:00 Missing
1997-07-02 10:00:00 1997-07-16 12:00:00 Missing
1997-03-05 16:00:00 1997-04-07 00:09:00 Missing
2011-03-16 12:29:00 2011-03-18 16:07:00 Missing
1999-09-03 03:00:00 1999-09-07 09:00:00 Missing
1997-04-24 23:00:00 1997-04-26 00:34:00 Missing
2001-11-28 04:00:00 2001-12-03 05:52:00 Missing
1998-11-01 22:00:00 1998-11-03 20:21:00 Missing
1998-01-05 02:00:00 1998-01-08 20:47:00 Missing
1998-02-21 21:00:00 1998-04-19 06:47:00 Missing
2003-01-07 07:06:00 2003-01-16 01:56:00 Missing
2010-12-24 16:13:00 2011-01-10 04:41:00 Missing
1998-11-20 02:00:00 1998-11-27 10:10:00 Missing
1998-05-28 00:00:00 1998-05-29 23:59:00 Missing
1997-06-13 12:00:00 1997-06-15 03:33:00 Missing
1997-04-29 22:00:00 1997-05-02 23:59:00 Missing
1997-09-08 02:00:00 1997-09-10 20:20:00 Missing
1996-11-14 09:00:00 1996-11-19 23:59:00 Missing
1997-04-15 01:00:00 1997-04-18 05:13:00 Missing
2003-04-30 23:00:00 2003-05-02 07:10:00 Missing
1999-10-01 09:00:00 1999-10-17 23:59:00 Missing
2011-05-14 06:00:00 2011-05-25 01:50:00 Missing
1996-12-07 09:00:00 1997-02-18 03:40:00 Missing
2011-07-16 22:00:00 2011-08-03 00:26:00 Missing
1996-11-29 01:00:00 1996-11-30 23:59:00 Missing
1997-06-04 06:00:00 1997-06-11 10:30:00 Missing
2000-01-14 08:00:00 2000-01-27 23:34:00 Missing
Subject: TWP/CEIL/C1 - Missing data
Affected Datastreams: twpceilC1.b1
Description Data are missing and unrecoverable.
Measurements
  • background_light (Background light)
  • third_cbh (Third cloud base height)
  • filename (Raw data file name)
  • sum_backscatter (Sum of detected and normalized backscatter)
  • window_contamination (Window contamination)
  • filename (Raw data filename)
  • range (Distance to the center of the corresponding range bin)
  • time_offset (Time offset from base_time)
  • first_cbh (Lowest cloud base height detected)
  • laser_pulse_energy (Laser pulse energy)
  • backscatter (Total attenuated backscatter)
  • backscatter (Backscatter)
  • second_cbh (Second lowest cloud base height)
  • status_flag (Ceilometer status indicator)
  • detection_status (Detection status)
  • tilt_angle (Tilt angle)
  • alt_highest_signal (Altitude of highest signal)
  • laser_temperature (Laser temperature)
  • status_string (Warning, alarm, and internal status information)
  • base_time (Base time in Epoch)
  • alt (Altitude above mean sea level)
  • measurement_parameters (Instrument measurement parameters)
  • lon (East longitude)
  • vertical_visibility (Vertical visibility)
  • receiver_sensitivity (Receiver sensitivity)
  • lat (North latitude)
 
DQR ID: D120917.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-05-15 00:00:00 2012-08-21 01:50:00 Suspect
Subject: TWP/MWR/C1 - Spikes in temperature sensor readings
Affected Datastreams: twpmwrtipC1.a1
Description The air temperature readings had occasional spikes. The temperature sensor was replaced on 8/21.
Measurements
  • tkair (Ambient temperature)