DQRs for Session: 136247 User:kirstieCompleted: 07-18-2011

Data Quality Reports for Session: 136247 User: kirstie Completed: 07/18/2011

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D021111.10	NSA/SKYRAD/C1 - Unshaded PIR maintenance	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D021111.18	NSA/SKYRAD/C1 - Unshaded and Shaded PIR data bad	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D021111.9	NSA/SKYRAD/C1 - Unshaded PIR maintenance	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D021211.12	NSA/GNDRAD/C1 - Noisy PIR Data	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021211.2	NSA/GNDRAD/C1 - IRT instrument maintenance	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.10	NSA/GNDRAD/C1 - Unreasonable PSP Data	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.6	NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.7	NSA/GNDRAD/C1 - Data corrupted by brief spike	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.8	NSA/GNDRAD/C1 - Rad instruments shaded by shelter	nsagndrad60sC1.a1, nsagndrad60sC1.b1
D021213.2	NSA/SKYRAD/C1 - NIP shaded by skyrad stand around local midnight	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D021213.4	NSA/SKYRAD/C1 - PSP shaded by MFRSR after local midnight	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
D031007.2	NSA/SKYRAD/C1 - IRT measurements during precipitation events	nsaskyrad60sC1.b1
D060724.2	NSA/SKYRAD/C1 - Summer solstice shading of radiometers	nsaskyrad60sC1.b1
D071018.1	NSA/SKYRAD/C1 - Missing data	nsaskyrad60sC1.b1
D071018.2	NSA/GNDRAD/C1 - Missing data	nsagndrad60sC1.b1
D090209.2	NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated	nsagndrad60sC1.b1
D090209.4	NSA/SKYRAD/C1 - Reprocess: IRT insufficiently heated	nsaskyrad60sC1.b1

DQRID : D021111.10

Start Date	Start Time	End Date	End Time
04/14/1999	2115	04/14/1999	2145

Subject:	NSA/SKYRAD/C1 - Unshaded PIR maintenance
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	During this time, the PIR unshaded was swapped on the SKYRAD stand.
Measurements:	nsaskyrad60sC1.b1: down_long_hemisp1_min down_long_hemisp1_std Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp1) down_long_hemisp1_max nsaskyrad60sC1.a1: pir1_sd pir1_max pir1_min pir1_mean

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DQRID : D021111.18

Start Date	Start Time	End Date	End Time
04/14/1999	2115	04/14/1999	2145

Subject:	NSA/SKYRAD/C1 - Unshaded and Shaded PIR data bad
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	Data during this time period is corrupted (seen as a dip in the measurements). During this time, the PIR unshaded was being replaced on the SKYRAD stand. This work affected the shaded PIR as well due to the presence of the operators in it's field of view.
Measurements:	nsaskyrad60sC1.b1: pirs_mean pir1_min pir1_mean pir1_max pirs_sd pir1_sd pirs_min pirs_max nsaskyrad60sC1.a1: pir1_max pir1_min pirs_mean pir1_sd pirs_min pirs_sd pirs_max pir1_mean

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DQRID : D021111.9

Start Date	Start Time	End Date	End Time
04/01/1999	2300	04/01/1999	2359

Subject:	NSA/SKYRAD/C1 - Unshaded PIR maintenance
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	A new PIR was installed during this time period by Phil Utley.
Measurements:	nsaskyrad60sC1.b1: pir1_mean pir1_max pir1_sd pir1_min nsaskyrad60sC1.a1: pir1_sd pir1_max pir1_min pir1_mean

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DQRID : D021211.12

Start Date	Start Time	End Date	End Time
03/01/1999	0000	12/31/2000	2359

Subject:	NSA/GNDRAD/C1 - Noisy PIR Data
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	During the period referenced, the ground PIR was noisy in comparison to the the sky PIR data. (Note U021211.1 documents same problem for 9/1/98-2/28/99) The noise problem continued after the GNDRAD data logger was replaced in late September. Particularly strong examples of the noise can be seen in data from 11/10 - 11/19/99. The peak to peak noise reaches 12 W/m2.
Measurements:	nsagndrad60sC1.b1: pir1_mean pir1_max pir1_min pir1_sd nsagndrad60sC1.a1: pir1_max pir1_sd pir1_min pir1_mean

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DQRID : D021211.2

Start Date	Start Time	End Date	End Time
09/15/1999	1720	09/15/1999	2000

Subject:	NSA/GNDRAD/C1 - IRT instrument maintenance
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	IRT offline while instrument cable was being rebuilt. Data are bad.
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Minima(sfc_ir_temp_min) sfc_ir_temp_std Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Effective Surface (Skin) Temperature(sfc_ir_temp) nsagndrad60sC1.a1: irt1_max irt1_min irt1_sd irt1_mean

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DQRID : D021212.10

Start Date	Start Time	End Date	End Time
03/03/1999	1200	03/03/1999	1515

Subject:	NSA/GNDRAD/C1 - Unreasonable PSP Data
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	During the darkness in the middle of this night, the PSP had a signal of 15 W/m2 over a three hour long period. Cause unknown.
Measurements:	nsagndrad60sC1.b1: psp1_min psp1_max psp1_mean psp1_sd nsagndrad60sC1.a1: psp1_mean psp1_sd psp1_min psp1_max

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DQRID : D021212.6

Start Date	Start Time	End Date	End Time
04/27/1999	2330	04/27/1999	2335
04/28/1999	1920	04/28/1999	1930

Subject:	NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	100 W/m2 dip in the PSP data; NET data also affected. Possibly due to operators working around the instruments.
Measurements:	nsagndrad60sC1.b1: net net_min psp1_sd net_std net_mean net_sd psp1_min net_max psp1_max psp1_mean nsagndrad60sC1.a1: psp1_mean psp1_sd net_std net_max psp1_min psp1_max net_mean net_min net net_sd

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DQRID : D021212.7

Start Date	Start Time	End Date	End Time
03/13/1999	1945	03/13/1999	1955

Subject:	NSA/GNDRAD/C1 - Data corrupted by brief spike
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	There is a unreasonable spike at this time. Simultaneous spikes on the NET, the PSP, and the PIR. Cause unknown, but most likely related to data logger.
Measurements:	nsagndrad60sC1.b1: net psp1_sd net_std net_mean net_max psp1_mean pir1_max net_min pir1_mean pir1_sd net_sd psp1_min psp1_max pir1_min nsagndrad60sC1.a1: net_max psp1_min pir1_max net_mean net_min psp1_mean psp1_sd net_std psp1_max pir1_sd pir1_min pir1_mean net net_sd

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DQRID : D021212.8

Start Date	Start Time	End Date	End Time
03/08/1999	0000	09/30/1999	2359

Subject:	NSA/GNDRAD/C1 - Rad instruments shaded by shelter
DataStreams:	nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:	Each day around 02:00 - 03:30 GMT there is a unexpected decrease for the PSP irradiance measurement due to a shading problem associated with the swing set location relative to the instrument shelter. The GNDRAD NET and MFR instrument data also reflects this problem. Problem was resolved when the GNDRAD instruments were moved to the 10 meter tip tower.
Measurements:	nsagndrad60sC1.b1: net psp1_sd net_std net_mean net_max psp1_mean pir1_max net_min pir1_mean pir1_sd net_sd psp1_min psp1_max pir1_min nsagndrad60sC1.a1: net_max psp1_min pir1_max net_mean net_min psp1_mean psp1_sd net_std psp1_max pir1_sd pir1_min pir1_mean net net_sd

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DQRID : D021213.2

Start Date	Start Time	End Date	End Time
05/01/1999	0000	08/10/1999	0000
05/01/2000	0000	08/10/2000	0000
05/01/2001	0000	08/10/2001	0000
05/01/2002	0000	08/10/2002	0000

Subject:	NSA/SKYRAD/C1 - NIP shaded by skyrad stand around local midnight
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	Around local midnight 9:30-10:30 GMT during summer clear sky the normal incidence pyranometer is shaded by the instrument stand.This causes the reading to be 0 W/m2. If cosine correction is applied for irradiance calulations this effect is negligible due to the low solar angle.
Measurements:	nsaskyrad60sC1.b1: Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max) nsaskyrad60sC1.a1: nip_max nip_sd nip_min nip_mean

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DQRID : D021213.4

Start Date	Start Time	End Date	End Time
05/01/1999	0000	08/10/1999	0000
05/01/2000	0000	08/10/2000	0000
05/01/2001	0000	08/10/2001	0000
05/01/2002	0000	08/10/2002	0000

Subject:	NSA/SKYRAD/C1 - PSP shaded by MFRSR after local midnight
DataStreams:	nsaskyrad60sC1.a1, nsaskyrad60sC1.b1
Description:	Just past local midnight (11:00-11:40 GMT during summer clear sky) the global hemispherical pyranometer is shaded by the MFRSR instrument for about 40 minutes. This causes the reading to be 0 W/m2. This effect would be negligible in a daily average due to the low solar angle.
Measurements:	nsaskyrad60sC1.b1: Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) down_short_hemisp_std Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) nsaskyrad60sC1.a1: psp1_sd psp1_mean psp1_min psp1_max

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DQRID : D031007.2

Start Date	Start Time	End Date	End Time
04/01/1999	0000	03/28/2003	0200

Subject:	NSA/SKYRAD/C1 - IRT measurements during precipitation events
DataStreams:	nsaskyrad60sC1.b1
Description:	The IRT measurement of sky/cloud temperature was in question during precipitation events because rain or snow could accumulate in the upward-pointed lens barrel. This was corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror.
Measurements:	nsaskyrad60sC1.b1: sky_ir_temp_min sky_ir_temp_std sky_ir_temp_max Temperature, Sky Infra-Red(sky_ir_temp)

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DQRID : D060724.2

Start Date	Start Time	End Date	End Time
05/08/1999	0000	08/05/1999	0000
05/08/2000	0000	08/05/2000	0000
05/08/2001	0000	08/05/2001	0000
05/08/2002	0000	08/05/2002	0000
05/08/2003	0000	08/05/2003	0000
05/08/2004	0000	08/05/2004	0000
05/08/2005	0000	08/05/2005	0000
05/08/2006	0000	08/05/2006	0000

Subject:	NSA/SKYRAD/C1 - Summer solstice shading of radiometers
DataStreams:	nsaskyrad60sC1.b1
Description:	On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP (global hemispheic shortwave measurement) radiometers are shaded by other instruments or support structures. Shading azimuths have been determined for this site. The radiometer mentor suggests not using the data from the NIP and PSP radiometers when the sun is within the following azimuth bounds (typically from May 8th to August 5th of each year): Instrmt Obstruction AzStart AzEnd NIP rad table 346 358 NIP met tower 13 15 PSP mfrsr 6 16
Measurements:	nsaskyrad60sC1.b1: psps_sd psp1_sd Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) psps_mean psps_min Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) nip_sd Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) psp1_min psp1_max Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) nip_mean Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) nip_min psps_max nip_max psp1_mean down_short_hemisp_std short_direct_normal_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)

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DQRID : D071018.1

Start Date	Start Time	End Date	End Time
07/29/1999	2041	08/05/1999	2359
09/23/2000	2257	09/25/2000	0119
03/15/2002	2036	03/18/2002	2035
09/07/2003	1103	09/19/2003	0201
11/05/2003	0339	11/07/2003	2234
01/03/2004	1153	01/06/2004	0031

Subject:	NSA/SKYRAD/C1 - Missing data
DataStreams:	nsaskyrad60sC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	nsaskyrad60sC1.b1: vBatt inst_down_long_hemisp2_tp Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp) lat sky_ir_temp_min sky_ir_temp_max Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Maxima(down_short_hemisp_max) Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyranometer, Minima(down_short_hemisp_min) Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp1) Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min) alt Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min) logger_temp down_short_hemisp_std down_long_hemisp1_min inst_down_long_hemisp1_tp short_direct_normal_std inst_down_long_hemisp2_dome_temp time_offset Temperature, Sky Infra-Red(sky_ir_temp) down_long_hemisp1_max inst_down_long_hemisp2_case_temp Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp) inst_down_long_hemisp1_dome_temp time lon down_long_hemisp2_min Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max) down_short_diffuse_hemisp_std down_long_hemisp2_max down_long_hemisp2_std inst_down_long_hemisp1_case_temp Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp2) Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal) sky_ir_temp_std base_time down_long_hemisp1_std Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)

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DQRID : D071018.2

Start Date	Start Time	End Date	End Time
07/27/1999	2150	08/05/1999	2359
08/06/1999	1208	08/07/1999	2359
10/03/1999	0000	11/04/1999	2359
11/23/1999	0000	11/28/1999	2359
01/28/2000	0000	02/03/2000	2341
09/21/2000	1619	09/24/2000	2258
03/15/2002	2052	03/21/2002	1502

Subject:	NSA/GNDRAD/C1 - Missing data
DataStreams:	nsagndrad60sC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	nsagndrad60sC1.b1: Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max) up_short_hemisp_std Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min) inst_up_long_hemisp_tp alt lon inst_up_long_hemisp_case_temp Effective Surface (Skin) Temperature(sfc_ir_temp) vBatt Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max) Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min) inst_up_long_hemisp_dome_temp base_time Surface Infra-Red Temperature Minima(sfc_ir_temp_min) sfc_ir_temp_std up_long_hemisp_std lat Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) logger_temp Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp) Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp) time time_offset

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DQRID : D090209.2

Start Date	Start Time	End Date	End Time
03/01/1999	0000	12/22/2000	2020

Subject:	NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated
DataStreams:	nsagndrad60sC1.b1
Description:	IRT had insufficient heating to maintain an internal reference temperature above 0 degrees C. Measurements of surface temperature were over-estimated when instrument was below freezing. Data will be reprocessed, but users can correct data using the following correction factor: If T_reference < -5?C, then IRT_corrected = (IRT_original - 32.993K)/0.87238 where T_reference can be estimated with the ambient temperature (e.g. inst_up_long_hemisp_dome_temp or inst_up_long_dome_temp)
Measurements:	nsagndrad60sC1.b1: Surface Infra-Red Temperature Minima(sfc_ir_temp_min) sfc_ir_temp_std Surface Infra-Red Temperature Maxima(sfc_ir_temp_max) Effective Surface (Skin) Temperature(sfc_ir_temp)

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DQRID : D090209.4

Start Date	Start Time	End Date	End Time
04/01/1999	0000	12/21/2000	1925

Subject:	NSA/SKYRAD/C1 - Reprocess: IRT insufficiently heated
DataStreams:	nsaskyrad60sC1.b1
Description:	IRT had insufficient heating to maintain an internal reference temperature above 0 degrees C. Measurements of sky temperature were over-estimated when instrument was below freezing. Data will be reprocessed, but users can correct data using the following correction factor: If T_reference < -5?C, then IRT_corrected = (IRT_original - 32.993K)/0.87238 where T_reference can be estimated with the ambient temperature (e.g. inst_down_long_hemisp_dome_temp or inst_down_long_dome_temp)
Measurements:	nsaskyrad60sC1.b1: sky_ir_temp_min sky_ir_temp_std sky_ir_temp_max Temperature, Sky Infra-Red(sky_ir_temp)

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