DQRs for Session: 145419 User:yushan0427Completed: 10-16-2012

Data Quality Reports for Session: 145419 User: yushan0427 Completed: 10/16/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040525.28	SGP/MPL/C1 - Metadata errors	sgpmplC1.a1, sgpmplnor1campC1.c1
D970207.1	Metadata for "Height" variable field	sgpmplC1.a0
D970408.3	Continuing signal degradation	sgpmplC1.a1, sgpmplcbh1scottC1.c1, DsgpmplC1.00
D990224.1	SGP/MPL - Missing data due to blown detector	sgpmplC1.a1, sgpmplcbh1scottC1.c1, sgpmplnor1campC1.c1, DsgpmplhrC1.00

DQRID : D040525.28

Start Date	Start Time	End Date	End Time
05/01/1996	0000	01/19/2000	2359

Subject:	SGP/MPL/C1 - Metadata errors
DataStreams:	sgpmplC1.a1, sgpmplnor1campC1.c1
Description:	The latitude, longitude and altitude of the Micropulse Lidar (MPL) were incorrectly entered into the ARM database. The correct location of the SGP.C1 MPL is: Lat: 36.606N Lon: 97.485W Alt: 316m
Measurements:	sgpmplC1.a1: lat lon alt sgpmplnor1campC1.c1: lon lat alt

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DQRID : D970207.1

Start Date	Start Time	End Date	End Time
03/12/1996	0000	04/30/1996	2359

Subject:	Metadata for "Height" variable field
DataStreams:	sgpmplC1.a0
Description:	The metadata defining the variable "Height" is incorrect. The metadata states that "Height" is the altitude of the BOTTOM of the range bins. In fact, "Height" is the altitude to the MIDDLE of the range bins. This amounts to an interpreted difference of 150 meters, since the range bins are 300 meters in width. The actual data values are unchanged, only interpretation of the altitude is different. This pertains to all existing data produces from the MPL02 at the SGP site.
Measurements:	sgpmplC1.a0: energy_monitor alt voltage_05 time_offset base_time Cloud base height(cloud_base_height) pulse_rep lon detector_temp Pressure, associated geometric height, at altitude, NGM model output(height) cloud_base_height_dq_flag filter_temp instrument_temp Backscatter(backscatter) voltage_10 laser_temp voltage_15 shots_summed background_signal lat

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DQRID : D970408.3

Start Date	Start Time	End Date	End Time
03/17/1997	0000	04/14/1997	2359

Subject:	Continuing signal degradation
DataStreams:	sgpmplC1.a1, sgpmplcbh1scottC1.c1, DsgpmplC1.00
Description:	Despite recent efforts (970310-970314) by the instrument mentor, signal degradation of the MPL has continued. The degradation has continued to the point that the effective range of the MPL is nearing 10 km. The instrument mentor and PI have concluded that an overhaul of the instrument by the vendor is in order.
Measurements:	sgpmplcbh1scottC1.c1: Preliminary cloud base height above ground level(cbh) base_time time_offset lon lat alt sgpmplC1.a1: lat lon Pressure, associated geometric height, at altitude, NGM model output(height) shots_sum range range_offset laser_scalar_sync_offset Preliminary cloud base height above ground level(preliminary_cbh) voltage_05 filter_temp trigger_freq time max_altitude range_bins energy_monitor transceiver_altitude_angle detector_temp shots_summed deadtime_correction voltage_15 alt property voltage_10 range_bin_width pulse_rep Backscatter(backscatter) laser_sync_offset range_bin_time laser_temp time_offset base_time scalar_sync_offset instrument_temp background_signal total_counts transceiver_azimuth_angle DsgpmplC1.00: Development raw data stream - documentation not supported

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DQRID : D990224.1

Start Date	Start Time	End Date	End Time
11/11/1998	0000	01/23/1999	2359

Subject:	SGP/MPL - Missing data due to blown detector
DataStreams:	sgpmplC1.a1, sgpmplcbh1scottC1.c1, sgpmplnor1campC1.c1, DsgpmplhrC1.00
Description:	Sometime early 11/11 the detector on the MPL-004 blew out. The Detector was replaced by Albert Mendoza. The instrument was operational on Jan. 23, 1999. Link this to P981119.2 that reported the blown detector and the corrective action taken
Measurements:	sgpmplcbh1scottC1.c1: Preliminary cloud base height above ground level(cbh) lon alt base_time time_offset lat sgpmplC1.a1: lon Pressure, associated geometric height, at altitude, NGM model output(height) range_offset laser_scalar_sync_offset Preliminary cloud base height above ground level(preliminary_cbh) filter_temp trigger_freq time energy_monitor transceiver_altitude_angle voltage_15 voltage_10 pulse_rep Backscatter(backscatter) laser_sync_offset range_bin_time laser_temp time_offset base_time scalar_sync_offset instrument_temp total_counts background_signal lat range shots_sum voltage_05 max_altitude range_bins detector_temp shots_summed deadtime_correction alt property range_bin_width transceiver_azimuth_angle sgpmplnor1campC1.c1: background_signal energy_monitor alt Cloud base height(cloud_base_height) cloud_top_attenuation_flag Backscatter(backscatter) lon baseline_update_time detector_temp random_error cloud_mask_2 cloud_mask_1 Cloud top height(cloud_top_height) pulse_rep time_offset shots_summed lat instrument_temp base_time Pressure, associated geometric height, at altitude, NGM model output(height) laser_temp DsgpmplhrC1.00: Development raw data stream - documentation not supported

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