DQR ID | Subject | Data Streams Affected |
---|---|---|
D080602.2 | SGP/SIRS/E21 - Failed Tracker | sgpsirs20sE21.a0, sgpsirsE21.b1 |
D080627.1 | SGP/SIRS/E21 - Ventilator Fan Failure | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
D080722.1 | SGP/SIRS/E21 - Tracker inoperative | sgpsirs20sE21.a0, sgpsirsE21.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/27/2008 | 1300 | 05/31/2008 | 1715 |
06/09/2008 | 0030 | 06/10/2008 | 1900 |
Subject: | SGP/SIRS/E21 - Failed Tracker |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.b1 |
Description: | During the time ranges specified the SIRS solar tracker had failed for unspecified reasons. Measurements of short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) will be incorrect and not recoverable. Longwave data are unaffected. |
Measurements: | sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/01/2007 | 0000 | 07/01/2008 | 1500 |
Subject: | SGP/SIRS/E21 - Ventilator Fan Failure |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.00, sgpsirsE21.b1 |
Description: | Start time is uncertain due to length of time this problem existed. During the time frame specified the PSP (down_short_hemisp) and 8-48 (down_short_diffuse_hemisp) ventilator fans failed. PM replaced the fans 7/1/2008 1500. Ventilator failure does adversely affect thermopile radiometer measurements but the extent has not been quantified. The 8-48 is significantly less affected than the PSP. Mentor suggests using component sum method detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + short_direct_normal * cos (zenith angle) for each time record. |
Measurements: | sgpsirsE21.00:
sgpsirs20sE21.a0:
sgpsirsE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/19/2008 | 2324 | 07/30/2008 | 1450 |
07/31/2008 | 1130 | 08/13/2008 | 1545 |
08/15/2008 | 1630 | 09/24/2008 | 1445 |
09/25/2008 | 1200 | 10/21/2008 | 2150 |
Subject: | SGP/SIRS/E21 - Tracker inoperative |
DataStreams: | sgpsirs20sE21.a0, sgpsirsE21.b1 |
Description: | The solar tracker at this site had numerous failures over the time range of this DQR. The result is non-recoverable data for any direct normal (NIP) or diffuse (8-48) broadband measurement. Longwave data is generally unaffected by such failures. |
Measurements: | sgpsirs20sE21.a0:
sgpsirsE21.b1:
|