DQRs for Session: 148992 User:xzhengCompleted: 03-22-2013

Data Quality Reports for Session: 148992 User: xzheng Completed: 03/22/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D000608.10	TWP/MPL/C2 - Power Oscillation	twpmplC2.a1
D000608.11	TWP/C2/MPL Detector	twpmplcmask1clothC2.c1, twpmplnor1campC2.c1, twpmplsmask1clothC2.c1, twpmplC2.a1, twpmplC2.00
D001113.2	TWP/MPL/C2 - Nauru MPL Laser Diode accidentally off	twpmplC2.a1
D020207.3	TWP/MPL/C2 - Laser emission accidentally turned off	twpmplC2.00, twpmplC2.a1, twpmplcbh1scottC2.c0, twpmplcbh1scottC2.c1, twpmplcmask1clothC2.c1, twpmplnor1campC2.c1, twpmplsmask1clothC2.c1
D051028.4	TWP/MPL/C2 - Reprocess: Global metadata error	twpmplC2.a1
D070515.3	TWP/MPL/C2 - Reprocess: Incorrect longitude and altitude reported	twpmplC2.a1

DQRID : D000608.10

Start Date	Start Time	End Date	End Time
11/20/1998	0000	02/03/1999	0000

Subject:	TWP/MPL/C2 - Power Oscillation
DataStreams:	twpmplC2.a1
Description:	There is an oscillation that shows up in the reflected power and the power monitor. This oscillation shows up clearly whenever there is an absence of low (< ~5 km) clouds. Cloud return signals tend to be much larger than the level of this oscillation; however, it may introduce problems for studying aerosol distributions. The end date of this DQR is artificial in that this is as far as the QC went.
Measurements:	twpmplC2.a1: energy_monitor Backscatter(backscatter)

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DQRID : D000608.11

Start Date	Start Time	End Date	End Time
02/03/1999	0000	04/20/1999	1200

Subject:	TWP/C2/MPL Detector
DataStreams:	twpmplcmask1clothC2.c1, twpmplnor1campC2.c1, twpmplsmask1clothC2.c1, twpmplC2.a1, twpmplC2.00
Description:	The MPL detector failed and was shut down.
Measurements:	twpmplC2.a1: range_bin_time pulse_rep lon voltage_05 base_time range_offset property shots_summed shots_sum instrument_temp time_offset Pressure, associated geometric height, at altitude, NGM model output(height) lat Backscatter(backscatter) filter_temp laser_scalar_sync_offset transceiver_azimuth_angle detector_temp deadtime_correction range_bins time total_counts energy_monitor transceiver_altitude_angle Preliminary cloud base height above ground level(preliminary_cbh) alt laser_temp scalar_sync_offset background_signal range voltage_15 voltage_10 range_bin_width trigger_freq max_altitude laser_sync_offset twpmplC2.00: Raw data stream - documentation not supported twpmplsmask1clothC2.c1: base_time Heights time_offset MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth) twpmplcmask1clothC2.c1: MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth) Heights base_time time_offset twpmplnor1campC2.c1: shots_summed energy_monitor cloud_top_attenuation_flag lat base_time instrument_temp baseline_update_time time_offset pulse_rep background_signal cloud_mask_1 cloud_mask_2 alt Cloud base height(cloud_base_height) lon Backscatter(backscatter) Pressure, associated geometric height, at altitude, NGM model output(height) Cloud top height(cloud_top_height) detector_temp laser_temp random_error

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DQRID : D001113.2

Start Date	Start Time	End Date	End Time
11/11/2000	0010	11/13/2000	2200

Subject:	TWP/MPL/C2 - Nauru MPL Laser Diode accidentally off
DataStreams:	twpmplC2.a1
Description:	The emission from the laser diode supply was accidentally off. The Instrument Mentor, Connor Flynn, called Nauru directly and had them turn the laser emission back on. Backscatter and cloud base data during the period between 2000-11-11 00:00 GMT and 2000-11-13 22:00 GMT should be regarded as bad or incorrect while background light data and local temperature values are acceptable.
Measurements:	twpmplC2.a1: Backscatter(backscatter) Preliminary cloud base height above ground level(preliminary_cbh)

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DQRID : D020207.3

Start Date	Start Time	End Date	End Time
11/11/2000	0000	11/13/2000	2200

Subject:	TWP/MPL/C2 - Laser emission accidentally turned off
DataStreams:	twpmplC2.00, twpmplC2.a1, twpmplcbh1scottC2.c0, twpmplcbh1scottC2.c1, twpmplcmask1clothC2.c1, twpmplnor1campC2.c1, twpmplsmask1clothC2.c1
Description:	Shortly after 00:00 GMT on 11/11/00, the MPL Energy Monitor value dropped abruptly to zero. At about 22:00 GMT on 11/13/00, the remote handset for the laser diode supply was used to turn the laser back on.
Measurements:	twpmplC2.a1: range_bin_time pulse_rep lon voltage_05 base_time range_offset property shots_summed shots_sum instrument_temp time_offset Pressure, associated geometric height, at altitude, NGM model output(height) lat Backscatter(backscatter) filter_temp laser_scalar_sync_offset transceiver_azimuth_angle detector_temp range_bins deadtime_correction time total_counts energy_monitor transceiver_altitude_angle Preliminary cloud base height above ground level(preliminary_cbh) alt laser_temp scalar_sync_offset background_signal range voltage_15 range_bin_width voltage_10 max_altitude trigger_freq laser_sync_offset twpmplC2.00: Raw data stream - documentation not supported twpmplsmask1clothC2.c1: base_time Heights time_offset MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth) twpmplcmask1clothC2.c1: MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth) Heights base_time time_offset twpmplcbh1scottC2.c1: alt Preliminary cloud base height above ground level(cbh) lon time_offset lat base_time twpmplnor1campC2.c1: shots_summed energy_monitor cloud_top_attenuation_flag lat base_time instrument_temp baseline_update_time time_offset pulse_rep background_signal cloud_mask_1 cloud_mask_2 alt Cloud base height(cloud_base_height) lon Backscatter(backscatter) Pressure, associated geometric height, at altitude, NGM model output(height) Cloud top height(cloud_top_height) detector_temp laser_temp random_error twpmplcbh1scottC2.c0: Raw data stream - documentation not supported

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DQRID : D051028.4

Start Date	Start Time	End Date	End Time
11/06/1998	0538	07/08/2003	0731

Subject:	TWP/MPL/C2 - Reprocess: Global metadata error
DataStreams:	twpmplC2.a1
Description:	During the time period specified, the global metadata attribute "averaging_int" is reported as 30 seconds when the value for this attribute should be 60 seconds.
Measurements:	twpmplC2.a1: time_offset

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DQRID : D070515.3

Start Date	Start Time	End Date	End Time
11/06/1998	0000	12/01/2000	2359

Subject:	TWP/MPL/C2 - Reprocess: Incorrect longitude and altitude reported
DataStreams:	twpmplC2.a1
Description:	The longitude of the MPL instrument is reported as -166.916. The correct longitude is +166.916. The altitude of the MPL instrument is reported as 7.2. The correct altitude is 7.1 M. These data will be reprocessed at a low priority.
Measurements:	twpmplC2.a1: alt lon

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