DQR ID | Subject | Data Streams Affected |
---|---|---|
D120716.1 | PVC/MET/M1 - Tower lowered | pvcmetM1.b1 |
D120913.1 | PVC/SKYRAD/M1 - Intake Fan Failure | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
D121005.1 | PVC/GNDRAD/M1 - Reprocessed: Incorrect calibration | pvcgndrad20sM1.a0, pvcgndrad60sM1.b1 |
D121008.1 | PVC/SKYRAD/M1 - Reprocessed: Incorrect calibration coefficients | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
D121018.10 | PVC/SKYRAD/M1 - Reprocess: Incorrect IRT Configuration | pvcskyrad60sM1.b1 |
D121024.3 | PVC/SKYRAD/M1 - IRT failure | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
D121024.5 | PVC/SKYRAD/M1 - IRT scale factor | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
D121102.1 | PVC/MET/M1 - False positive precipitation | pvcmetM1.b1 |
D121128.4 | PVC/SKYRAD/M1 - Instrument noise | pvcskyrad60sM1.b1, pvcskyrad20sM1.a0 |
D121217.8 | PVC/SKYRAD/M1 - IRT disconnected | pvcskyrad60sM1.b1 |
D121218.2 | PVC/MET/M1 - Tower lowered | pvcmetM1.b1 |
D121218.4 | PVC/GNDRAD/M1 - IRT failure | pvcgndrad20sM1.a0, pvcgndrad60sM1.b1 |
D130117.4 | PVC/MET/M1 - PWD data intermittently missing | pvcmetM1.b1 |
D130227.6 | PVC/SKYRAD/M1 - Pending Storm | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/13/2012 | 1230 | 07/13/2012 | 1330 |
Subject: | PVC/MET/M1 - Tower lowered |
DataStreams: | pvcmetM1.b1 |
Description: | Met tower was lowered during this time. Data may be inaccurate. |
Measurements: | pvcmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2012 | 0000 | 08/28/2012 | 2045 |
Subject: | PVC/SKYRAD/M1 - Intake Fan Failure |
DataStreams: | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Description: | PSP (down_short_hemisp) ventilator fan failed from start of PVC deployment. Site ops repaired/replaced on 8/28. Instrument data are not recoverable. The down_short_hemisp data are not recoverable but can be re-constructed using the short_direct_normal and down_short_diffuse_hemispheric measurements and the following formula: Global = Direct * cos(zenith angle) + Diffuse |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2012 | 0000 | 10/04/2012 | 2017 |
Subject: | PVC/GNDRAD/M1 - Reprocessed: Incorrect calibration |
DataStreams: | pvcgndrad20sM1.a0, pvcgndrad60sM1.b1 |
Description: | Incorrect program used in Gndrad since PVC deployment period began. The Gndrad program was corrected 10/04/2012 approx 20:17GMT. Reprocessing will be required of the upwelling PSP (up_short_hemsip). This will require applying the following corrections for the time range specified. Serial number: serial number(original) = 30938 serial number(corrected) = 37297 Data: up_short_hemip(corrected) = up_short_hemisp(original)*(113.25(new cal)/129.42(old cal)) Reprocessing completed 20121119. |
Measurements: | pvcgndrad60sM1.b1:
pvcgndrad20sM1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/25/2012 | 0000 | 09/05/2012 | 2000 |
Subject: | PVC/SKYRAD/M1 - Reprocessed: Incorrect calibration coefficients |
DataStreams: | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Description: | Incorrect programs were used in Skyrad since PVC deployment period began. The Skyrad program was corrected 09/05/2012 approx 20:00GMT. Reprocessing will be required of all instruments at this station except the IRT. This will require applying the following corrections for the time range specified. Serial numbers(incorrectly applied): PIR1-DIR: 34306 PIR2-DIR: 34303 Diffuse PSP: 34284 NIP: 34097 PSP-DS: 34293 Serial numbers(correct): PIR1-DIR: 34303 PIR2-DIR: 34306 Diffuse PSP: 35751 NIP: 37285 PSP-DS: 37302 Data: Longwave requires reprocessing using the 20second datastream and applying the following k1 coefficients (note: the longwave instruments were swapped according to datalogger). down_long_hemisp1 (old cal) = 0.23041 down_long_hemisp1 (corr cal) = 0.24750 down_long_hemisp2 (old cal) = 0.24750 down_long_hemisp2 (corr cal) = 0.23041 Shortwave only requires application of the following corrections to 1min and 20 second data. down_short_diffuse_hemisp(corr) = down_short_diffuse_hemisp(old value)*(104.45(corr cal)/120.91(incorr cal)) short_direct_normal(corr) = short_direct_normal(old value)*(117.25(new cal)/124.97(incorr cal)) up_short_hemip(corr) = up_short_hemip(old value)*(119.21(new cal)/108.48(incorr cal)) Contact radiometer mentor with any comments/questions Reprocessing completed 20121217 |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/29/2012 | 2240 | 10/18/2012 | 1259 |
Subject: | PVC/SKYRAD/M1 - Reprocess: Incorrect IRT Configuration |
DataStreams: | pvcskyrad60sM1.b1 |
Description: | The SKYRAD IRT was installed temporarily (waiting for the new enclosure) in a vertical orientation, without the use of the gold mirror. When irt_comm was started, the emissivity parameter in the startup file was not changed to 1.000 compensate for the absence of the mirror, resulting in a positive bias of about 5 K. These data may be corrected by adjusting the radiance values for the difference in emmissivity. |
Measurements: | pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2012 | 0550 | 10/12/2012 | 1459 |
Subject: | PVC/SKYRAD/M1 - IRT failure |
DataStreams: | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Description: | The IRT failed because of water intrusion. |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/18/2012 | 1300 | 10/22/2012 | 1259 |
Subject: | PVC/SKYRAD/M1 - IRT scale factor |
DataStreams: | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Description: | The IRT was replaced with a unit with the wrong analog output configuration, such that the sky temperature was below the measurable range, resulting in a constant output of 0 volts or 173.2 K. |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2012 | 0000 | 10/25/2012 | 1309 |
Subject: | PVC/MET/M1 - False positive precipitation |
DataStreams: | pvcmetM1.b1 |
Description: | Optical rain gauge recorded significantly more precipitation than expected. Instrument was removed/replaced and sent for recalibration. |
Measurements: | pvcmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/19/2012 | 1345 | 10/19/2012 | 1515 |
10/22/2012 | 1340 | 10/22/2012 | 1415 |
10/23/2012 | 1245 | 10/23/2012 | 1640 |
10/16/2012 | 1948 | 10/17/2012 | 1642 |
10/05/2012 | 1400 | 10/05/2012 | 1510 |
10/18/2012 | 1618 | 10/18/2012 | 1630 |
10/18/2012 | 2018 | 10/18/2012 | 2035 |
Subject: | PVC/SKYRAD/M1 - Instrument noise |
DataStreams: | pvcskyrad60sM1.b1, pvcskyrad20sM1.a0 |
Description: | All instruments on Skyrad exhibit intermittant erratic behavior from 10/05 through 10/23. Appears to have been an grounding issue with the IRT installed on Skyrad and replaced 10/17. After the last problem period on 10/23 the problem resolved itself without operator involvement. All data on Skyrad during these erratic behaviour periods are not recoverable. Bad data can generally be identified by screening vBatt for values outside normal operation range of 13.3-13.6V. |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/11/2012 | 1200 | 07/15/2012 | 1135 |
Subject: | PVC/SKYRAD/M1 - IRT disconnected |
DataStreams: | pvcskyrad60sM1.b1 |
Description: | The IRT was disconnected to diagnose PIR signal noise. |
Measurements: | pvcskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/30/2012 | 2000 | 12/13/2012 | 1830 |
Subject: | PVC/MET/M1 - Tower lowered |
DataStreams: | pvcmetM1.b1 |
Description: | The tower containing the wind sensor was not at full-height of 10 meters following Hurricane Sandy. |
Measurements: | pvcmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/26/2012 | 0000 | 12/11/2012 | 1556 |
Subject: | PVC/GNDRAD/M1 - IRT failure |
DataStreams: | pvcgndrad20sM1.a0, pvcgndrad60sM1.b1 |
Description: | The IRT failed but continued producing a misleading analog signal. The ground surface temperature measurements were unrepresentative of the actual temperature. |
Measurements: | pvcgndrad60sM1.b1:
pvcgndrad20sM1.a0:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/29/2012 | 1700 | 12/28/2012 | 0508 |
Subject: | PVC/MET/M1 - PWD data intermittently missing |
DataStreams: | pvcmetM1.b1 |
Description: | Present weather detector was occasionally reporting a hardware problem during this time. The reported error did not affect visibility readings, but caused all other data to report as missing. Error resolved its self with no indication of the problem cause. |
Measurements: | pvcmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/07/2013 | 2100 | 02/13/2013 | 1846 |
Subject: | PVC/SKYRAD/M1 - Pending Storm |
DataStreams: | pvcskyrad20sM1.a0, pvcskyrad60sM1.b1 |
Description: | Site prepartation for pending storm in Cape Cod Area included stowing the tracker for the affected period. During this time the only Skyrad instruments that will read accurately will be down_short_hemisp (global horizontal shortwave pyranometer instrument), down_long_hemisp1 and 2 (pyrgeometer instrument) will read correct values. Additionally, there may have been undocumented periods of missing data during this time. |
Measurements: | pvcskyrad20sM1.a0:
pvcskyrad60sM1.b1:
|