DQR ID | Subject | Data Streams Affected |
---|---|---|
D040127.5 | SGP/ECOR/E10 - Timestamp problems and intermittent data gaps | sgpecorE10.00, sgp30ecorE10.b1 |
D040408.1 | SGP/ECOR/E16 - Data suspect due to inability to run QC | sgpecorE16.00, sgp30ecorE16.b1 |
D040526.6 | SGP/ECOR/E3 - Missing data | sgp30ecorE3.b1 |
D040617.2 | SGP/ECOR/E1 - Missing data | sgp30ecorE1.b1 |
D040707.1 | SGP/ECOR/E6 - Sonic Sensor failure | sgpecorE6.00, sgp30ecorE6.b1 |
D040720.1 | SGP/ECOR/E10 - Sensor failure | sgpecorE10.00, sgp30ecorE10.b1 |
D040804.1 | SGP/ECOR/E3 - Failed IRGA | sgp30ecorE3.b1 |
D040826.1 | SGP/ECOR/E24 - Reprocess: Sonic analog input failure | sgp30ecorE24.b1 |
D041008.1 | SGP/ECOR/E24 - Missing data | sgp30ecorE24.b1 |
D041025.2 | SGP/ECOR/E1 - System time drift | sgpecorE1.00, sgp30ecorE1.b1 |
D041025.3 | SGP/ECOR/E10 - Sensor failure | sgpecorE10.00, sgp30ecorE10.b1 |
D041103.2 | SGP/ECOR/E16 - Failed IRGA | sgp30ecorE16.b1 |
D041202.1 | SGP/ECOR/E6 - Reprocess: Incorrect wind direction | sgp30ecorE6.b1 |
D041221.2 | SGP/ECOR/E3 - Data transfer problem | sgpecorE3.00, sgp30ecorE3.b1 |
D041223.2 | SGP/ECOR/E16 - Missing data | sgp30ecorE16.b1 |
D050222.1 | SGP/ECOR/E6 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data | sgp30ecorE6.b1 |
D050413.5 | SGP/ECOR/E10 - Reprocess: Incorrect H2O, CO2 | sgpecorE10.00, sgp30ecorE10.b1 |
D050421.1 | SGP/ECOR/E10 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data | sgp30ecorE10.b1 |
D050421.2 | SGP/ECOR/E16 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data | sgp30ecorE16.b1 |
D050421.3 | SGP/ECOR/E24 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data | sgp30ecorE24.b1 |
D050524.1 | SGP/ECOR/E6 - Missing data | sgp30ecorE6.b1 |
D050524.3 | SGP/ECOR/E6 - Sonic Sensor failure | sgp30ecorE6.b1 |
D051024.3 | SGP/ECOR/E10 - Missing data | sgp30ecorE10.b1 |
D060531.3 | SGP/ECOR/E10 - Reprocess: Wind Direction Incorrect | sgp30ecorE10.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/2003 | 2200 | 12/05/2003 | 2030 |
Subject: | SGP/ECOR/E10 - Timestamp problems and intermittent data gaps |
DataStreams: | sgpecorE10.00, sgp30ecorE10.b1 |
Description: | The raw files produced by the instrument contained bad (uncorrectable) data. Specifically the date of the data in the file is given a time that is ahead of the actual time the data was genertaed. This was caught because the date in the file was ahead of the system time of the server processing the raw file. The mentor indicated all such files were compeltely bad and unrecoverable so all files that failed to be ingested were not shipped to the archive, thus producing holes in the raw and processed datastreams. Because the problem was discovered by comparing to system time at time of processing all files between these dates should be consider suspect. Therefore the files that are on the system over these three days should be used cautiously |
Measurements: | sgpecorE10.00:
sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/12/2004 | 0000 | 04/28/2004 | 1500 |
Subject: | SGP/ECOR/E16 - Data suspect due to inability to run QC |
DataStreams: | sgpecorE16.00, sgp30ecorE16.b1 |
Description: | Some QC checks were unsuccessful due to a communication failure that resulted in contaminated QC field data. All the data that are based on water vapor density and CO2 concentration are "suspect" because many of the standard QC checks were not employed. |
Measurements: | sgpecorE16.00:
sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/25/2004 | 0300 | 06/16/2004 | 1730 |
07/01/2005 | 0200 | 07/15/2005 | 1600 |
07/19/2005 | 1300 | 07/27/2005 | 1500 |
06/07/2006 | 0030 | 06/14/2006 | 1600 |
08/03/2006 | 0130 | 08/09/2006 | 1700 |
Subject: | SGP/ECOR/E3 - Missing data |
DataStreams: | sgp30ecorE3.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/15/2004 | 0900 | 09/10/2004 | 1800 |
10/03/2004 | 1500 | 10/05/2004 | 1830 |
05/24/2005 | 0800 | 06/07/2005 | 1800 |
09/06/2005 | 1900 | 09/20/2005 | 2030 |
05/31/2006 | 2000 | 08/08/2006 | 2230 |
Subject: | SGP/ECOR/E1 - Missing data |
DataStreams: | sgp30ecorE1.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/05/2004 | 2230 | 08/23/2004 | 1200 |
Subject: | SGP/ECOR/E6 - Sonic Sensor failure |
DataStreams: | sgpecorE6.00, sgp30ecorE6.b1 |
Description: | Due to sonic sensor failure, humidity, CO2 concentration, latent heat flux, and CO2 flux data are incorrect. |
Measurements: | sgpecorE6.00:
sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/14/2004 | 0100 | 08/13/2004 | 1800 |
Subject: | SGP/ECOR/E10 - Sensor failure |
DataStreams: | sgpecorE10.00, sgp30ecorE10.b1 |
Description: | Due to LI-7500 (H2O/CO2 infrared gas analyzer) sensor failure all humidity and CO2 data are incorrect for the period of Jul. 14, 2004 01:00 to Aug. 13, 2004 18:00. |
Measurements: | sgpecorE10.00:
sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2004 | 1730 | 06/30/2004 | 1730 |
Subject: | SGP/ECOR/E3 - Failed IRGA |
DataStreams: | sgp30ecorE3.b1 |
Description: | Infrared gas analyzer (IRGA) failed 6/16; a new IRGA was installed on 6/30. All data related to CO2 and water vapor concentration measurements (including CO2 flux and latent heat flux) are incorrect for the period of June 16, 2004, 17:30 to June 30, 2004, 17:30. Wind and sensible heat flux data are OK. |
Measurements: | sgp30ecorE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/04/2004 | 1000 | 09/16/2004 | 1730 |
Subject: | SGP/ECOR/E24 - Reprocess: Sonic analog input failure |
DataStreams: | sgp30ecorE24.b1 |
Description: | All the data based on H2O and CO2 "analog signals" (latent heat flux, CO2 flux, etc.) are incorrect for the period of 10:00 June 4, 2004 to 17:30 Sept. 16, 2004 due to to failure in sonic anemometer analog input circuitry. Correct water vapor density and CO2 concentration data are stored in IRGA (infrared gas analyzer) raw data files (sgpecorE24.00 datastream); that data may be used to re-calculate fluxes. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/07/2004 | 1230 | 12/09/2004 | 1730 |
10/20/2006 | 2130 | 10/26/2006 | 0900 |
Subject: | SGP/ECOR/E24 - Missing data |
DataStreams: | sgp30ecorE24.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/19/2004 | 2030 | 10/25/2004 | 1735 |
Subject: | SGP/ECOR/E1 - System time drift |
DataStreams: | sgpecorE1.00, sgp30ecorE1.b1 |
Description: | Network Time Protocol (NTP) client was not working at the ECOR computer resulting in an ECOR system time drift of about 6s per hour. Time adjustment by +15 minutes occurred at 17:35:25, Oct. 25, 2004. |
Measurements: | sgp30ecorE1.b1:
sgpecorE1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/22/2004 | 1830 | 12/14/2004 | 2200 |
Subject: | SGP/ECOR/E10 - Sensor failure |
DataStreams: | sgpecorE10.00, sgp30ecorE10.b1 |
Description: | Due to sensor failure all the parameters measured by the Infrared Gas Analyzer (water vapor density, CO2 concentration, fluxes of latent heat and CO2, etc.) are incorrect for the period of 18:30 Oct. 22, 2004 to 22:00 Dec. 14, 2004. The data is irrevocably lost. |
Measurements: | sgpecorE10.00:
sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/02/2004 | 0130 | 11/09/2004 | 1530 |
Subject: | SGP/ECOR/E16 - Failed IRGA |
DataStreams: | sgp30ecorE16.b1 |
Description: | The infrared gas analyzer (IRGA) failed on Nov. 2, 2004, 02:00; the system continued to operate without H2O and CO2 data until Nov. 9, 2004, 15:30; then it stopped due to another hardware failure. The system was returned to service on Nov. 12, 2004, 18:00. The latent heat flux and CO2 flux data are irrevocably lost for the period from Nov. 2, 2004, 02:00 to Nov. 12, 2004, 18:00. |
Measurements: | sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/26/2004 | 1530 | 12/16/2004 | 1630 |
Subject: | SGP/ECOR/E6 - Reprocess: Incorrect wind direction |
DataStreams: | sgp30ecorE6.b1 |
Description: | The sonic anemometer was mounted 90 degrees off during August 26 Corrective Maintenance visit; the wind direction was reported 90 degrees off for the period of August 26, 2004, 15:30 to December 16, 2004, 16:30. |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/19/2004 | 1353 | 12/20/2004 | 0931 |
Subject: | SGP/ECOR/E3 - Data transfer problem |
DataStreams: | sgpecorE3.00, sgp30ecorE3.b1 |
Description: | Serial communication with one sensor (the IRGA) were partially disrupted due to deteriorating hardware from 13:53, Dec. 19, 2004 to 09:31 Dec. 20, 2004. Serial data from the IRGA is mainly used to get sensor status codes, so this might lead to false increase of "bad" point count. It seems that IRGA analog outputs (stored in raw sonic data file, primary source of data) were not affected, so the flux data may be reprocessed or verified using raw sonic data files and ignoring IRGA sensor status. |
Measurements: | sgpecorE3.00:
sgp30ecorE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/14/2004 | 1800 | 04/16/2004 | 1630 |
11/09/2004 | 1530 | 11/12/2004 | 1730 |
01/05/2005 | 0730 | 01/10/2005 | 1900 |
07/14/2005 | 1430 | 07/18/2005 | 1330 |
04/28/2006 | 1530 | 05/24/2006 | 1500 |
07/14/2006 | 0630 | 07/19/2006 | 1930 |
Subject: | SGP/ECOR/E16 - Missing data |
DataStreams: | sgp30ecorE16.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/14/2004 | 0000 | 06/14/2004 | 0030 |
Subject: | SGP/ECOR/E6 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data |
DataStreams: | sgp30ecorE6.b1 |
Description: | Due to system clock instability on ECOR computers their system time is adjusted approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, into the previous day. In this case all the data based on CO2/H2O measurements might be erroneously marked as bad. Below is a list of times when that might have happen. SITE YEAR MONTH DAY HOUR MINUTE 06 2004 06 14 00 00 |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/2004 | 2230 | 01/11/2005 | 2200 |
Subject: | SGP/ECOR/E10 - Reprocess: Incorrect H2O, CO2 |
DataStreams: | sgpecorE10.00, sgp30ecorE10.b1 |
Description: | Due to failure of analog output circuitry in the Infrared Gas Analyzer (IRGA), CO2 and water vapor parameters measured by the IRGA (water vapor density, CO2 concentration, fluxes of latent heat and CO2) were incorrectly recorded in sonic raw data files for the period of 22:30 Dec. 14, 2004 to 22:00 Jan. 11, 2005. The data could be recovered from IRGA raw serial files (00 level). |
Measurements: | sgpecorE10.00:
sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/10/2003 | 0000 | 02/04/2005 | 0030 |
Subject: | SGP/ECOR/E10 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data |
DataStreams: | sgp30ecorE10.b1 |
Description: | Due to system clock instability on ECOR computers their system time is adjusted approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, into the previous day. In this case all the data based on CO2/H2O measurements might be erroneously marked as bad. |
Measurements: | sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/23/2004 | 0000 | 03/13/2005 | 0030 |
Subject: | SGP/ECOR/E16 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data |
DataStreams: | sgp30ecorE16.b1 |
Description: | Due to system clock instability on ECOR computers their system time is adjusted approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, into the previous day. In this case all the data based on CO2/H2O measurements might be erroneously marked as bad. Below is a list of times when that might have happen. SITE YEAR MONTH DAY HOUR MINUTE 16 2004 02 23 00 00 16 2004 02 28 00 00 16 2004 03 01 00 00 16 2004 03 09 00 00 16 2004 03 15 00 00 16 2004 03 17 00 00 16 2004 03 22 00 00 16 2004 03 30 00 00 16 2004 04 02 00 00 16 2004 07 22 00 00 16 2004 08 06 00 00 16 2004 09 05 00 00 16 2004 09 20 00 00 16 2005 03 13 00 00 |
Measurements: | sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/19/2004 | 0000 | 03/24/2005 | 0030 |
Subject: | SGP/ECOR/E24 - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data |
DataStreams: | sgp30ecorE24.b1 |
Description: | Due to system clock instability on ECOR computers their system time is adjusted approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, into the previous day. In this case all the data based on CO2/H2O measurements might be erroneously marked as bad. Below is a list of times when that might have happen. SITE YEAR MONTH DAY HOUR MINUTE 24 2004 03 19 00 00 24 2004 03 20 00 00 24 2004 03 21 00 00 24 2004 03 23 00 00 24 2004 03 24 00 00 24 2004 03 25 00 00 24 2004 03 26 00 00 24 2004 03 27 00 00 24 2004 03 28 00 00 24 2004 03 29 00 00 24 2004 03 31 00 00 24 2004 04 01 00 00 24 2004 04 02 00 00 24 2004 04 03 00 00 24 2004 04 16 00 00 24 2004 04 17 00 00 24 2004 04 18 00 00 24 2004 04 22 00 00 24 2004 04 23 00 00 24 2004 04 30 00 00 24 2004 05 30 00 00 24 2004 05 31 00 00 24 2004 06 01 00 00 24 2004 06 02 00 00 24 2004 06 03 00 00 24 2004 06 05 00 00 24 2004 06 06 00 00 24 2004 06 07 00 00 24 2004 06 08 00 00 24 2004 06 12 00 00 24 2004 06 13 00 00 24 2004 06 14 00 00 24 2004 06 17 00 00 24 2004 06 18 00 00 24 2004 06 19 00 00 24 2004 06 20 00 00 24 2004 06 22 00 00 24 2004 06 23 00 00 24 2004 06 24 00 00 24 2004 06 25 00 00 24 2004 06 26 00 00 24 2004 06 27 00 00 24 2004 06 28 00 00 24 2004 06 29 00 00 24 2004 06 30 00 00 24 2004 07 01 00 00 24 2004 07 02 00 00 24 2004 07 05 00 00 24 2004 07 06 00 00 24 2004 07 07 00 00 24 2004 07 11 00 00 24 2004 07 12 00 00 24 2004 07 13 00 00 24 2004 07 14 00 00 24 2004 07 16 00 00 24 2004 07 17 00 00 24 2004 07 18 00 00 24 2004 07 19 00 00 24 2004 07 20 00 00 24 2004 07 21 00 00 24 2004 07 22 00 00 24 2004 07 25 00 00 24 2004 07 26 00 00 24 2004 07 27 00 00 24 2004 07 28 00 00 24 2004 07 29 00 00 24 2004 08 01 00 00 24 2004 08 02 00 00 24 2004 08 03 00 00 24 2004 08 05 00 00 24 2004 08 06 00 00 24 2004 08 07 00 00 24 2004 08 08 00 00 24 2004 08 09 00 00 24 2004 08 20 00 00 24 2004 08 21 00 00 24 2004 08 22 00 00 24 2004 08 25 00 00 24 2004 08 26 00 00 24 2004 08 27 00 00 24 2004 08 28 00 00 24 2004 08 29 00 00 24 2004 08 30 00 00 24 2004 08 31 00 00 24 2004 09 01 00 00 24 2004 09 04 00 00 24 2004 09 05 00 00 24 2004 09 06 00 00 24 2004 09 07 00 00 24 2004 09 08 00 00 24 2004 09 09 00 00 24 2004 09 10 00 00 24 2004 09 11 00 00 24 2004 09 13 00 00 24 2004 09 14 00 00 24 2004 09 17 00 00 24 2004 09 18 00 00 24 2004 09 19 00 00 24 2004 09 22 00 00 24 2004 09 23 00 00 24 2004 09 24 00 00 24 2004 09 25 00 00 24 2004 09 26 00 00 24 2004 09 27 00 00 24 2004 09 29 00 00 24 2004 09 30 00 00 24 2004 10 01 00 00 24 2004 10 02 00 00 24 2004 10 05 00 00 24 2004 10 06 00 00 24 2004 10 07 00 00 24 2004 12 11 00 00 24 2004 12 12 00 00 24 2004 12 13 00 00 24 2004 12 14 00 00 24 2004 12 15 00 00 24 2004 12 16 00 00 24 2004 12 17 00 00 24 2004 12 18 00 00 24 2004 12 19 00 00 24 2004 12 20 00 00 24 2004 12 21 00 00 24 2004 12 24 00 00 24 2004 12 26 00 00 24 2004 12 27 00 00 24 2004 12 28 00 00 24 2004 12 29 00 00 24 2004 12 31 00 00 24 2005 01 01 00 00 24 2005 01 02 00 00 24 2005 01 04 00 00 24 2005 01 07 00 00 24 2005 01 09 00 00 24 2005 01 10 00 00 24 2005 01 11 00 00 24 2005 01 15 00 00 24 2005 01 17 00 00 24 2005 01 18 00 00 24 2005 01 20 00 00 24 2005 01 22 00 00 24 2005 01 25 00 00 24 2005 01 27 00 00 24 2005 01 30 00 00 24 2005 02 03 00 00 24 2005 02 05 00 00 24 2005 02 06 00 00 24 2005 02 07 00 00 24 2005 02 10 00 00 24 2005 02 11 00 00 24 2005 02 12 00 00 24 2005 02 14 00 00 24 2005 02 17 00 00 24 2005 02 18 00 00 24 2005 02 19 00 00 24 2005 02 20 00 00 24 2005 02 21 00 00 24 2005 02 22 00 00 24 2005 02 23 00 00 24 2005 02 24 00 00 24 2005 02 25 00 00 24 2005 02 26 00 00 24 2005 02 28 00 00 24 2005 03 04 00 00 24 2005 03 05 00 00 24 2005 03 06 00 00 24 2005 03 07 00 00 24 2005 03 09 00 00 24 2005 03 11 00 00 24 2005 03 12 00 00 24 2005 03 13 00 00 24 2005 03 14 00 00 24 2005 03 15 00 00 24 2005 03 20 00 00 24 2005 03 21 00 00 24 2005 03 23 00 00 24 2005 03 24 00 00 |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/23/2004 | 1230 | 08/26/2004 | 1530 |
01/05/2005 | 0330 | 01/13/2005 | 1600 |
Subject: | SGP/ECOR/E6 - Missing data |
DataStreams: | sgp30ecorE6.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/05/2004 | 2230 | 08/23/2004 | 1200 |
Subject: | SGP/ECOR/E6 - Sonic Sensor failure |
DataStreams: | sgp30ecorE6.b1 |
Description: | Due to sonic sensor failure, wind, temperature and sensible heat flux data are suspect. |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/03/2003 | 2200 | 12/05/2003 | 2030 |
05/13/2005 | 1100 | 05/16/2005 | 1600 |
08/09/2005 | 1630 | 10/18/2005 | 2130 |
07/31/2006 | 0800 | 01/09/2007 | 2030 |
Subject: | SGP/ECOR/E10 - Missing data |
DataStreams: | sgp30ecorE10.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/03/2003 | 1900 | 05/25/2006 | 1800 |
Subject: | SGP/ECOR/E10 - Reprocess: Wind Direction Incorrect |
DataStreams: | sgp30ecorE10.b1 |
Description: | It was discovered that the E10 ECOR boom is aligned 17 degrees to the west of true north. Therefore, all wind direction data for the stated period is 17 degrees too high. Subtract 17 degrees from the wind direction to give the correct direction. The E10 configuration file was modified to correct this problem. |
Measurements: | sgp30ecorE10.b1:
|