DQRs for Session: 149210 User:jeffersonCompleted: 04-02-2013

Data Quality Reports for Session: 149210 User: jefferson Completed: 04/02/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D091109.2	SGP/AOS/C1 - Suspected leak in CCN and or problem with instrument optics	sgpaosccnC1.a1
D101020.7	SGP/AOS/C1 - Data processing problem	sgpaosC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1

DQRID : D091109.2

Start Date	Start Time	End Date	End Time
05/15/2009	0000	08/03/2009	0000

Subject:	SGP/AOS/C1 - Suspected leak in CCN and or problem with instrument optics
DataStreams:	sgpaosccnC1.a1
Description:	The CCN signal started a slow decline during this period. The instrument was removed and shipped back to the mentor for repair. A leak was found in the instrument which would've decreased the over all signal. Whether this leak affected the rate of CCN growth with %SS is uncertain.
Measurements:	sgpaosccnC1.a1: AOS number concentration of CCN(N_CCN) CCN_Q_sheath CCN_Q_sample CCN_ss_set CCN_ss_calc AOS CCN number concentration by bin(N_CCN_dN) AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)

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DQRID : D101020.7

Start Date	Start Time	End Date	End Time
01/01/2009	0000	10/01/2010	0000

Subject:	SGP/AOS/C1 - Data processing problem
DataStreams:	sgpaosC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1
Description:	The AOS data was reprocessed for the AMF, SGP and NSA sites. There was an error in the processing of the corrections for the PSAP absorption signal such that a low pass filter was implemented for the scattering data used in these corrections.The difference between the corrected and previous data is < 0.05 Mm-1 (below the instrument detection limit) and should not have a significant effect on the previous data. Data will be reprocessed at a later time when more significant changes to the data processing are implemented.
Measurements:	sgpnoaaaosavgC1.b1: Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1) Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1) sgpaosC1.a1: Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_G_Dry_10um_PSAP3W_1) Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1) Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1) Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1) Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1) Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1) Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1) Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1) sgpnoaaaosC1.b1: Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1) Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1) Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1) Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_G_Dry_10um_PSAP3W_1) Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1) Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1) Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1) Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)

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