DQRs for Session: 152047 User:sbensonCompleted: 08-06-2013

Data Quality Reports for Session: 152047 User: sbenson Completed: 08/06/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D101222.2	TWP/SWF/C2 - instrument grounding problem	twp15swfanalskyrad1longC2.c1, twp1swfanalskyrad1longC2.c1

DQRID : D101222.2

Start Date	Start Time	End Date	End Time
04/23/2009	0000	04/23/2009	2359
05/04/2009	0000	05/08/2009	2359
05/15/2009	0000	05/15/2009	2359
05/21/2009	0000	05/25/2009	2359

Subject:	TWP/SWF/C2 - instrument grounding problem
DataStreams:	twp15swfanalskyrad1longC2.c1, twp1swfanalskyrad1longC2.c1
Description:	A grounding problem with the skyrad data logger (discussed in DQR D090605.2) created intermittent anomalous voltages and incorrect flux data. Measured all-sky fluxes and derived cloud fraction during these periods are incorrect. The identification of clear sky periods during these days and estimated clear sky fluxes may also be incorrect. Days listed in this DQR are periods where bad data could be clearly identified; data from other days in this date range should be treated with caution.
Measurements:	twp15swfanalskyrad1longC2.c1: sswfluxdn_measured difratiodn_measured_stdev sswfluxdn_cloudeffect Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) difcloudeffect_normalized difratiodn_measured difswfluxdn_cloudeffect gswfluxdn_cloudeffect Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) guvbdn_measured Fractional Sky Cover(cloudfraction) twp1swfanalskyrad1longC2.c1: sswfluxdn_measured gswfluxdn_cloudeffect Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured) difswfluxdn_cloudeffect Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured) sswfluxdn_cloudeffect Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured) difratiodn_measured Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured) guvbdn_measured

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