DQRs for Session: 130872 User:austincogaCompleted: 10-14-2010

Data Quality Reports for Session: 130872 User: austincoga Completed: 10/14/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D081030.2	SGP/CSPHOT/C1 - AOT 1640 channel data missing	sgpcsphotaotC1.a1, sgpcsphotaotfiltC1.a1, sgpcsphotalm1duboC1.a1, sgpcsphotaotfiltqaC1.a1
D090507.4		sgpvceil25kC1.b1
D100215.1	SGP/VCEIL/C1/B4/B5/B6 - Reprocess: Incorrect serial_number and sum_backscatter fields	sgpvceil25kB4.b1, sgpvceil25kB5.b1, sgpvceil25kB6.b1, sgpvceil25kC1.b1
D100514.1	SGP/VCEIL/C1 - Range normalization	sgpvceil25kC1.b1

DQRID : D081030.2

Start Date	Start Time	End Date	End Time
09/24/2008	0000	07/25/2010	2359

Subject:	SGP/CSPHOT/C1 - AOT 1640 channel data missing
DataStreams:	sgpcsphotaotC1.a1, sgpcsphotaotfiltC1.a1, sgpcsphotalm1duboC1.a1, sgpcsphotaotfiltqaC1.a1
Description:	AOT 1640 channel data missing. The instrument deployed at SGP from September 2008 to July 2010 was not upgraded with this additional channel.
Measurements:	sgpcsphotaotfiltqaC1.a1: TripletVar_1640 Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) sgpcsphotalm1duboC1.a1: Aerosol optical thickness, 1640nm(AOT_1640) sgpcsphotaotfiltC1.a1: TripletVar_1640 Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640) sgpcsphotaotC1.a1: TripletVar_1640 Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)

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DQRID : D090507.4

Start Date	Start Time	End Date	End Time
05/06/2009	1800	05/07/2009	1910

Subject:
DataStreams:	sgpvceil25kC1.b1
Description:
Measurements:	sgpvceil25kC1.b1: receiver_sensitivity lon Lowest cloud base height detected.(first_cbh) base_time window_contamination tilt_angle lat alt_highest_signal alt measurement_parameters laser_temperature Second lowest cloud base height(second_cbh) laser_pulse_energy range Vertical visibility(vertical_visibility) sum_backscatter background_light status_string detection_status Backscatter(backscatter) status_flag Third cloud base height(third_cbh) time_offset

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DQRID : D100215.1

Start Date	Start Time	End Date	End Time
04/01/2001	0000	10/31/2009	2359

Subject:	SGP/VCEIL/C1/B4/B5/B6 - Reprocess: Incorrect serial_number and sum_backscatter fields
DataStreams:	sgpvceil25kB4.b1, sgpvceil25kB5.b1, sgpvceil25kB6.b1, sgpvceil25kC1.b1
Description:	Attribute serial_number: In most cases, this field is not representative of the actual serial number of the instrument because the value did not change when an instrument changed locations or was replaced with a spare. Variable sum_backscatter: An out-of-range condition for the "sum of detected and normalized backscatter" was reported as 0 instead of missing (-9999). The valid range is 0 - 0.0999 /srad. This DQR also applies to a1 level data collected prior to b1 level.
Measurements:	sgpvceil25kC1.b1: sum_backscatter sgpvceil25kB4.b1: sum_backscatter sgpvceil25kB6.b1: sum_backscatter sgpvceil25kB5.b1: sum_backscatter

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DQRID : D100514.1

Start Date	Start Time	End Date	End Time
04/16/2010	2202	04/23/2010	2241

Subject:	SGP/VCEIL/C1 - Range normalization
DataStreams:	sgpvceil25kC1.b1
Description:	The range gate data were not normalized during this period because, when the CL31 was first deployed, I was uncertain about this parameter and returned it to its default setting of "off". Range gate normalization was enabled after receiving the following from Vaisala: ''We do recommend to keep this 'profile noise_h2' setting on. If 'profile noise_h2' is off, then range correction of the signal would freeze at 2400 m, unless the algorithm has detected a cloud region. This had been designed to make profiles in CL-VIEW look less noisy and to emphasize the presence of clouds.''
Measurements:	sgpvceil25kC1.b1: Lowest cloud base height detected.(first_cbh) Vertical visibility(vertical_visibility) alt_highest_signal Backscatter(backscatter) Second lowest cloud base height(second_cbh) Third cloud base height(third_cbh)

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