D Q R Report

DQRID : D170407.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/17/2017	2011	03/18/2017	0334	Incorrect
03/16/2017	2135	03/17/2017	0320	Incorrect
03/19/2017	1745	03/20/2017	1815	Incorrect
03/09/2017	1901	03/10/2017	0356	Incorrect

Subject:	SGP/MPL/C1 - Instrument not switching between polarization modes
DataStreams:	sgpmplpolfsC1.b1, sgpmplC1.a0, sgpmplpolfsC1.00, sgpmplC1.00, sgpmplpolC1.b1, sgpmplC1.a1, sgpmplpolC1.00
Description:	Liquid Cristal is not switching consistently, so laser polarization seems to be "hanging" between copol and crosspol modes. Data is incorrect.
Suggestions:	Use alternate data sources, i.e. ceilometer.
Measurements:	sgpmplpolfsC1.b1: overlap_correction_heights range_bin_time afterpulse_correction_co_pol range laser_temp deadtime_correction deadtime_correction_counts num_bins pulse_rep afterpulse_correction_cross_pol height background_signal_co_pol signal_return_co_pol dead_time_corrected shots_per_avg mcs_mode first_data_bin polarization_control_voltage background_signal_std_co_pol range_bins range_offset scope_temp polarization_control signal_return_cross_pol max_altitude afterpulse_correction_height background_signal_cross_pol laser_fire_bin detector_temp energy_monitor background_signal_std_cross_pol overlap_correction range_bin_width num_channels more sgpmplpolfsC1.00: Raw data stream - documentation not supported more sgpmplpolC1.b1: shots_per_avg laser_temp range_bin_width background_signal scope_temp dead_time_corrected detector_temp num_bins max_altitude height pulse_rep polarization_control range range_bin_time background_signal_std preliminary_cbh num_channels range_offset range_bins polarization_control_voltage signal_return energy_monitor more sgpmplC1.a1: detector_temp laser_temp height trigger_freq background_signal total_counts shots_sum shots_summed detector_counts voltage_05 laser_sync_offset property assumed_zero_range_bin pulse_rep voltage_15 voltage_10 filter_temp energy_monitor laser_scalar_sync_offset deadtime_correction range_bin_width scalar_sync_offset range_bins transceiver_altitude_angle max_altitude preliminary_cbh range_offset backscatter range_bin_time transceiver_azimuth_angle range instrument_temp more sgpmplC1.00: Raw data stream - documentation not supported more sgpmplC1.a0: height shots_summed instrument_temperature cloud_base_height voltage_05 voltage_15 voltage_10 instrument_temp pulse_rep laser_temp filter_temp cloud_base_height_dq_flag backscatter energy_monitor background_signal detector_temp more sgpmplpolC1.00: Raw data stream - documentation not supported more

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