DQRs for Session: 181949 User:ouem1Completed: 11-30-2016

Data Quality Reports for Session: 181949 User: ouem1 Completed: 11/30/2016

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D160107.7	AWR/SONDE/M1 - Suspect Surface Temperature or RH	awrsondewnpnM1.b1	Suspect
D160121.1	AWR/KAZR/M1 - Snow Buildup	awrkazrgeM1.a1	Suspect
D160407.2	AWR/KASACR/XSACR/M1 - General Quality Statement	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrhsrhiM1.a1, awrxsacrppiM1.a1	Suspect
D160407.3	AWR/KASACR/XSACR/M1 - Calibration	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrhsrhiM1.a1, awrxsacrppiM1.a1	Suspect
D160429.2	AWR/XSACR/M1 - Reprocess: Doppler Velocity Reversed	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrppiM1.a1, awrxsacrhsrhiM1.a1	Incorrect
D160718.6	AWR/XSACR/M1 - Low copol_correlation_coeff at Times	awrxsacrvptM1.a1	Does not affect quality

DQRID : D160107.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/22/2015	1020	12/22/2015	1139	Suspect
12/22/2015	2238	12/22/2015	2356	Suspect
12/13/2015	2224	12/13/2015	2337	Suspect
12/30/2015	1036	12/30/2015	1152	Suspect
12/26/2015	1018	12/26/2015	1133	Suspect
12/14/2015	2231	12/14/2015	2347	Suspect
12/06/2015	1031	12/06/2015	1146	Suspect
12/04/2015	1040	12/04/2015	1205	Suspect
12/02/2015	2303	12/03/2015	0013	Suspect
12/26/2015	2231	12/26/2015	2346	Suspect
12/15/2015	2225	12/15/2015	2341	Suspect
12/03/2015	2232	12/03/2015	2343	Suspect
12/27/2015	1027	12/27/2015	1142	Suspect
12/10/2015	1027	12/10/2015	1140	Suspect
12/09/2015	1031	12/09/2015	1145	Suspect
01/13/2016	2233	01/13/2016	2348	Suspect
12/11/2015	1025	12/11/2015	1142	Suspect

Subject:	AWR/SONDE/M1 - Suspect Surface Temperature or RH
DataStreams:	awrsondewnpnM1.b1
Description:	For the times listed, surface values of either Temperature or Relative Humidity appear to be suspect.
Measurements:	awrsondewnpnM1.b1: Temperature, dewpoint, at altitude(dp) Dry Bulb Temperature(tdry) Humidity, relative, on hybrid-b grid, derived from RUC model(rh)

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DQRID : D160121.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/19/2016	0000	01/20/2016	0300	Suspect

Subject:	AWR/KAZR/M1 - Snow Buildup
DataStreams:	awrkazrgeM1.a1
Description:	Snow buildup from this system were affecting the sensitivity of the instrument. Snow was cleared on 1/20/16 around 0200 UTC and shows up in the data as a sharp increase in Zh values.
Measurements:	awrkazrgeM1.a1: Mean doppler velocity, copolar(mean_doppler_velocity_copol) Spectral width, co-polarization(spectral_width_copol) sky_noise_copol signal_to_noise_ratio_copol Reflectivity, co-polarization(reflectivity_copol)

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DQRID : D160407.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/23/2015	0000	01/13/2017	2359	Suspect

Subject:	AWR/KASACR/XSACR/M1 - General Quality Statement
DataStreams:	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrhsrhiM1.a1, awrxsacrppiM1.a1
Description:	The SACR continues to undergo evaluation by the radar instrument mentors, ProSensing, VAP developers, DQ Office, site scientists, users, etc. As more in-depth analysis and calibration studies take place, we anticipate that new insights will be gained to increase the quality of the data and decrease the uncertainty of the measurements. This is a continuous improvement process and issues will be addressed as they are discovered. Calibration is very important. Calibration of the SACRs depends on the careful installation of a corner reflector target. This provides a external calibration reference not obtainable with a zenith-pointing radar such as the KAZR. However, significant data analysis is required to assure that the radar is pointing at the target and there are no interfering losses in the transmission path. As issues are discovered, attempts will be made to correct data that is currently in the Archive. However, retrospective correction of errors due calibration, signal processing, component degradation and software bugs may not be possible for many of the data files. This open-ended DQR is an advisory that some aspects of the data quality are not yet known. It is also a request for users that find issues or questions with the data to contact the ARM Radar Engineering & Operations Group Manager, as these issues occur so that they can be investigated and corrected if necessary.
Measurements:	awrxsacrvptM1.a1: Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) polarization_mode Altitude above mean sea level(alt) Differential reflectivity(differential_reflectivity) platform_type azimuth r_calib_xmit_power_h r_calib_noise_source_power_h longitude r_calib_time unambiguous_range sky_noise_copol Reflectivity(reflectivity) r_calib_noise_source_power_v r_calib_receiver_gain_hc scan_rate sky_power_copol r_calib_radar_constant_h r_calib_noise_hc elevation r_calib_radar_constant_v r_calib_two_way_radome_loss_h pulse_width sky_noise_xpol frequency East longitude(lon) antenna_transition fixed_angle time_coverage_start radar_beam_width_h r_calib_index follow_mode time_offset range time primary_axis sweep_start_ray_index radar_antenna_gain_h sweep_mode radar_antenna_gain_v nyquist_velocity Differential propagation phase shift(differential_phase) Spectral Width(spectral_width) r_calib_receiver_gain_vx r_calib_noise_vx n_samples radar_beam_width_v Signal to noise ratio(snr) altitude_agl North latitude(lat) prt volume_number prt_mode radar_measured_transmit_power_h base_time sky_power_xpol r_calib_pulse_width latitude sweep_number sweep_end_ray_index altitude Mean Doppler Velocity(mean_doppler_velocity) instrument_type time_coverage_end awrxsacrhsrhiM1.a1: polarization_mode sky_power_xpol sweep_number platform_type r_calib_noise_hc fixed_angle altitude_agl pulse_width Mean Doppler Velocity(mean_doppler_velocity) follow_mode r_calib_time frequency volume_number longitude radar_measured_transmit_power_h scan_rate Spectral Width(spectral_width) Altitude above mean sea level(alt) time_coverage_end sweep_start_ray_index r_calib_radar_constant_v radar_antenna_gain_h r_calib_receiver_gain_hc r_calib_two_way_radome_loss_h East longitude(lon) radar_antenna_gain_v time_offset r_calib_radar_constant_h Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) Differential propagation phase shift(differential_phase) r_calib_pulse_width instrument_type r_calib_receiver_gain_vx time prt_mode sweep_mode nyquist_velocity r_calib_index base_time antenna_transition r_calib_xmit_power_h range primary_axis sky_noise_copol sky_power_copol azimuth sky_noise_xpol North latitude(lat) prt Reflectivity(reflectivity) n_samples Signal to noise ratio(snr) elevation Differential reflectivity(differential_reflectivity) r_calib_noise_vx r_calib_noise_source_power_v sweep_end_ray_index latitude r_calib_noise_source_power_h radar_beam_width_v altitude radar_beam_width_h time_coverage_start unambiguous_range awrxsacrcwrhiM1.a1: n_samples Differential propagation phase shift(differential_phase) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) radar_measured_transmit_power_h r_calib_noise_hc radar_antenna_gain_h longitude radar_antenna_gain_v sweep_number sky_power_xpol antenna_transition r_calib_pulse_width r_calib_noise_vx Reflectivity(reflectivity) unambiguous_range r_calib_two_way_radome_loss_h Spectral Width(spectral_width) sweep_mode instrument_type platform_type primary_axis scan_rate time_offset fixed_angle time r_calib_xmit_power_h azimuth sweep_end_ray_index frequency r_calib_radar_constant_h East longitude(lon) r_calib_receiver_gain_vx time_coverage_end Differential reflectivity(differential_reflectivity) time_coverage_start prt_mode sky_power_copol polarization_mode r_calib_index volume_number range r_calib_radar_constant_v elevation sky_noise_copol Mean Doppler Velocity(mean_doppler_velocity) Altitude above mean sea level(alt) radar_beam_width_h follow_mode radar_beam_width_v Signal to noise ratio(snr) nyquist_velocity sweep_start_ray_index sky_noise_xpol latitude altitude r_calib_noise_source_power_v altitude_agl r_calib_time North latitude(lat) base_time r_calib_noise_source_power_h r_calib_receiver_gain_hc pulse_width prt awrxsacrppiM1.a1: frequency r_calib_pulse_width time_offset n_samples volume_number Reflectivity(reflectivity) r_calib_index prt r_calib_noise_vx radar_beam_width_h sky_power_copol follow_mode prt_mode nyquist_velocity azimuth radar_beam_width_v antenna_transition sweep_end_ray_index sweep_mode time_coverage_end pulse_width unambiguous_range radar_measured_transmit_power_h Differential reflectivity(differential_reflectivity) r_calib_two_way_radome_loss_h East longitude(lon) Spectral Width(spectral_width) base_time r_calib_time radar_antenna_gain_h sweep_start_ray_index radar_antenna_gain_v Differential propagation phase shift(differential_phase) sky_power_xpol sky_noise_xpol time instrument_type fixed_angle range sky_noise_copol sweep_number r_calib_xmit_power_h altitude scan_rate longitude r_calib_noise_source_power_h Mean Doppler Velocity(mean_doppler_velocity) r_calib_noise_source_power_v r_calib_radar_constant_h time_coverage_start elevation r_calib_receiver_gain_vx primary_axis r_calib_radar_constant_v Altitude above mean sea level(alt) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) polarization_mode altitude_agl r_calib_receiver_gain_hc Signal to noise ratio(snr) platform_type r_calib_noise_hc latitude North latitude(lat)

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DQRID : D160407.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/23/2015	0000	01/13/2017	2359	Suspect

Subject:	AWR/KASACR/XSACR/M1 - Calibration
DataStreams:	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrhsrhiM1.a1, awrxsacrppiM1.a1
Description:	Note: These data are not fully calibrated. The data will be processed to a b1-level data product with improved calibration.
Measurements:	awrxsacrvptM1.a1: Differential propagation phase shift(differential_phase) Spectral Width(spectral_width) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) Signal to noise ratio(snr) Differential reflectivity(differential_reflectivity) Mean Doppler Velocity(mean_doppler_velocity) Reflectivity(reflectivity) awrxsacrhsrhiM1.a1: Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) Differential propagation phase shift(differential_phase) Reflectivity(reflectivity) Signal to noise ratio(snr) Mean Doppler Velocity(mean_doppler_velocity) Differential reflectivity(differential_reflectivity) Spectral Width(spectral_width) awrxsacrcwrhiM1.a1: Spectral Width(spectral_width) Mean Doppler Velocity(mean_doppler_velocity) Signal to noise ratio(snr) Differential propagation phase shift(differential_phase) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff) Differential reflectivity(differential_reflectivity) Reflectivity(reflectivity) awrxsacrppiM1.a1: Differential reflectivity(differential_reflectivity) Differential propagation phase shift(differential_phase) Signal to noise ratio(snr) Spectral Width(spectral_width) Reflectivity(reflectivity) Mean Doppler Velocity(mean_doppler_velocity) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff)

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DQRID : D160429.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/23/2015	0000	01/13/2017	2359	Incorrect

Subject:	AWR/XSACR/M1 - Reprocess: Doppler Velocity Reversed
DataStreams:	awrxsacrvptM1.a1, awrxsacrcwrhiM1.a1, awrxsacrppiM1.a1, awrxsacrhsrhiM1.a1
Description:	Doppler velocity sign is opposite that of the KaSACR and KAZR
Measurements:	awrxsacrvptM1.a1: Mean Doppler Velocity(mean_doppler_velocity) awrxsacrhsrhiM1.a1: Mean Doppler Velocity(mean_doppler_velocity) awrxsacrcwrhiM1.a1: Mean Doppler Velocity(mean_doppler_velocity) awrxsacrppiM1.a1: Mean Doppler Velocity(mean_doppler_velocity)

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DQRID : D160718.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/09/2016	0900	07/15/2016	0613	Does not affect quality

Subject:	AWR/XSACR/M1 - Low copol_correlation_coeff at Times
DataStreams:	awrxsacrvptM1.a1
Description:	The VPT copol_correlation_coeff (RhoHv) is unusually low at times. It only last the duration of the 15 minute scan normally and will be OK the next scan. The cause of this is currently unknown and the data may actually be OK. However, use with caution.
Measurements:	awrxsacrvptM1.a1: Mean Doppler Velocity(mean_doppler_velocity) sky_power_xpol sky_power_copol sky_noise_copol sky_noise_xpol Differential propagation phase shift(differential_phase) Signal to noise ratio(snr) Reflectivity(reflectivity) Differential reflectivity(differential_reflectivity) Spectral Width(spectral_width) Copolar correlation coefficient (also known as rhohv)(copol_correlation_coeff)

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