DQRs for Session: 131000 User:xiaoleiCompleted: 11-10-2010

Data Quality Reports for Session: 131000 User: xiaolei Completed: 11/10/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030922.3	NSA/MPL/C1 - laser head failure	nsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1
D040124.1	NSA/MPL/C1 - Laser Q-Switch Problem	nsamplC1.00, nsamplC1.a1, nsamplpsC1.a0, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1
D040426.3	NSA/MPL/C1 - Hardware Failure/Missing Data	nsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1

DQRID : D030922.3

Start Date	Start Time	End Date	End Time
04/28/2002	0200	08/29/2002	0100

Subject:	NSA/MPL/C1 - laser head failure
DataStreams:	nsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1
Description:	On 2002-04-28 the laser energy was observed to decrease throughout the day. Although low clouds continued to be detected, by the end of the day the output laser energy was about 10% of nomimal. This decrease continued throughout 2002-04-29 to the extent that clouds were no longer detected. The source of failure was eventually determined to be the laser head, requiring the MPL to be shipped for repair. The MPL was reinstalled on 2002-08-28 at about 01:00 UTC. MPL NSA data from 2002-04-29 through 2002-08-27 (inclusive) should not be used.
Measurements:	nsamplC1.a1: transceiver_altitude_angle base_time instrument_temp range_bin_time range filter_temp max_altitude time property Preliminary cloud base height(preliminary_cbh) alt laser_scalar_sync_offset scalar_sync_offset voltage_10 voltage_15 range_bin_width range_bins Pressure, associated geometric height, at altitude, NGM model output(height) lon range_offset energy_monitor shots_sum Backscatter(backscatter) shots_summed pulse_rep trigger_freq transceiver_azimuth_angle total_counts lat background_signal laser_temp time_offset detector_temp laser_sync_offset deadtime_correction voltage_05 nsamplsmask1clothC1.c1: MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth) Heights time_offset base_time nsamplcmask1clothC1.c1: Heights MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth) time_offset base_time nsamplC1.00: Raw data stream - documentation not supported

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DQRID : D040124.1

Start Date	Start Time	End Date	End Time
01/19/2004	2252	01/24/2004	0016

Subject:	NSA/MPL/C1 - Laser Q-Switch Problem
DataStreams:	nsamplC1.00, nsamplC1.a1, nsamplpsC1.a0, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1
Description:	At about 22:52 UTC on 2004/01/19, the NSA MPL appears to have suffered a temporary failure of the laser Q-Switch. This results in a complete loss of lidar data immediately thereafter. The problem was resolved (at least for the time being) by disconnecting and reconnecting the Q-Switch cable on 2004/01/24 at about 00:16 UTC. Data after this time appears good.
Measurements:	nsamplC1.a1: range_bin_time range filter_temp max_altitude property laser_scalar_sync_offset scalar_sync_offset range_bin_width lon energy_monitor Backscatter(backscatter) trigger_freq transceiver_azimuth_angle laser_temp time_offset detector_temp laser_sync_offset deadtime_correction transceiver_altitude_angle base_time instrument_temp time Preliminary cloud base height(preliminary_cbh) alt voltage_10 voltage_15 range_bins Pressure, associated geometric height, at altitude, NGM model output(height) range_offset shots_sum shots_summed pulse_rep total_counts lat background_signal voltage_05 nsamplsmask1clothC1.c1: Heights time_offset base_time MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth) nsamplpsC1.a0: range_bin_time background_signal alt voltage_15 instrument_temp Preliminary cloud base height(preliminary_cbh) max_altitude detector_counts Pressure, associated geometric height, at altitude, NGM model output(height) range_bins time range voltage_05 voltage_10 lon pulse_rep filter_temp detector_temp base_time laser_temp range_bin_width shots_summed time_offset energy_monitor lat range_offset nsamplcmask1clothC1.c1: Heights MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth) time_offset base_time nsamplC1.00: Raw data stream - documentation not supported

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DQRID : D040426.3

Start Date	Start Time	End Date	End Time
11/21/2003	0500	12/01/2003	1441

Subject:	NSA/MPL/C1 - Hardware Failure/Missing Data
DataStreams:	nsamplC1.00, nsamplC1.a1, nsamplcmask1clothC1.c1, nsamplsmask1clothC1.c1
Description:	Data are missing during this extended period due to a hardware failure.
Measurements:	nsamplC1.a1: transceiver_altitude_angle base_time instrument_temp range_bin_time range filter_temp max_altitude time property Preliminary cloud base height(preliminary_cbh) alt laser_scalar_sync_offset scalar_sync_offset voltage_10 voltage_15 range_bin_width range_bins Pressure, associated geometric height, at altitude, NGM model output(height) lon range_offset energy_monitor shots_sum Backscatter(backscatter) shots_summed pulse_rep trigger_freq transceiver_azimuth_angle total_counts lat background_signal laser_temp time_offset detector_temp laser_sync_offset deadtime_correction voltage_05 nsamplsmask1clothC1.c1: MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth) Heights time_offset base_time nsamplcmask1clothC1.c1: Heights MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth) time_offset base_time nsamplC1.00: Raw data stream - documentation not supported

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