DQR ID | Subject | Data Streams Affected |
---|---|---|
D050811.6 | PYE/SONDE/M1 - Broken RH sensor | pyesondewnpnM1.b1 |
D050902.2 | PYE/MWRP/M1 - Bias in Ground Relative Humidity Measurement | pyemwrpM1.00, pyemwrpM1.b1 |
D060630.43 | PYE/SKYRAD/M1 - Reprocess: Longwave Calibration error | pyeskyrad60sM1.b1 |
D060630.44 | PYE/GNDRAD/M1 - Reprocess: Longwave Calibration error | pyegndrad60sM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/02/2005 | 1129 | 08/02/2005 | 1225 |
Subject: | PYE/SONDE/M1 - Broken RH sensor |
DataStreams: | pyesondewnpnM1.b1 |
Description: | One of the RH sensors on this radiosonde was bad. The RH oscillates rapidly between near 0 and ambient up to approximately 11 km. The near-zero values are incorrect. |
Measurements: | pyesondewnpnM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/17/2005 | 0000 | 09/03/2005 | 0000 |
Subject: | PYE/MWRP/M1 - Bias in Ground Relative Humidity Measurement |
DataStreams: | pyemwrpM1.00, pyemwrpM1.b1 |
Description: | On June 17 2005, the MWRP was re-installed at PYE after the Super Blower was replaced by the old style dew blower. The relative humidity ground sensor in the dew blower is not as accurate. This resulted in a negative relative humidity bias of about 5.9 %. In other words the MWRP sensor was underestimating the relative humidity. The bias was determined by comparing MWRP measurements with SMET and radiosonde measurements. The MP.cfg file for the MWRP was changed to reflect this bias on 09/02/2005 and will take effect on 09/03/2005 0000 GMT |
Measurements: | pyemwrpM1.b1:
pyemwrpM1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/14/2005 | 0000 |
Subject: | PYE/SKYRAD/M1 - Reprocess: Longwave Calibration error |
DataStreams: | pyeskyrad60sM1.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place are being reprocessing to remove the calibration bias. Note, this also affected standard deviation, maximum and minimum data fields. |
Measurements: | pyeskyrad60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/14/2005 | 0000 |
Subject: | PYE/GNDRAD/M1 - Reprocess: Longwave Calibration error |
DataStreams: | pyegndrad60sM1.b1 |
Description: | Modified pyrgeometer calibration procedures were implemented beginning in December 2003. These modified procedures introduced a calibration bias in the longwave data. The previous procedures were re-implemented at all sites between December 2005 and February 2006 to restore proper calibrations. The data collected while the incorrect procedures were in place are being reprocessing to remove the calibration bias. Note, this also affected standard deviation, maximum and minimum data fields. |
Measurements: | pyegndrad60sM1.b1:
|