DQR ID | Subject | Data Streams Affected |
---|---|---|
D021211.12 | NSA/GNDRAD/C1 - Noisy PIR Data | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021211.2 | NSA/GNDRAD/C1 - IRT instrument maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021211.6 | NSA/GNDRAD/C1 - IRT data noisy | 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 |
D071018.2 | NSA/GNDRAD/C1 - Missing data | nsagndrad60sC1.b1 |
D080919.1 | NSA/GNDRAD/C1 - Net radiometer removed | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D090209.2 | NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated | nsagndrad60sC1.b1 |
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:
nsagndrad60sC1.a1:
|
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:
nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/10/1999 | 0000 | 12/29/2000 | 1859 |
Subject: | NSA/GNDRAD/C1 - IRT data noisy |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
Description: | After re-installation of the IRT on 12/10/99, the data are noisy. Source of the noise is believed to be the heater connected directly to the IRT. Instrument was taken offline on 12/30/1999 and shipped back to PNNL for repair/testing. |
Measurements: | nsagndrad60sC1.b1:
nsagndrad60sC1.a1:
|
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:
nsagndrad60sC1.a1:
|
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:
nsagndrad60sC1.a1:
|
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:
nsagndrad60sC1.a1:
|
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:
nsagndrad60sC1.a1:
|
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/03/2000 | 0000 | 03/03/2003 | 2359 |
Subject: | NSA/GNDRAD/C1 - Net radiometer removed |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
Description: | The net radiometer was removed from the NSA.C1 GNDRAD instrument suite on Feb 3, 2000. Net rad variables were filled with garbage data until Sept 23, 2000 and with missing values (-9999) until 20041103. The net rad variables were removed from the netcdf files after 20041103. A reprocessing task (RID-526) has been submitted to the queue to address the need to add metadata to the NSA.C1 GNDRAD netcdf files documenting the missing data as well as to move toward a consistent datastream format throughout time. |
Measurements: | nsagndrad60sC1.b1:
nsagndrad60sC1.a1:
|
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:
|