DQR ID | Subject | Data Streams Affected |
---|---|---|
D040526.6 | SGP/ECOR/E3 - Missing data | sgp30ecorE3.b1 |
D040617.2 | SGP/ECOR/E1 - Missing data | sgp30ecorE1.b1 |
D040804.1 | SGP/ECOR/E3 - Failed IRGA | sgp30ecorE3.b1 |
D041025.2 | SGP/ECOR/E1 - System time drift | sgpecorE1.00, sgp30ecorE1.b1 |
D041221.2 | SGP/ECOR/E3 - Data transfer problem | sgpecorE3.00, sgp30ecorE3.b1 |
D051031.5 | SGP/ECOR/E21 - Missing data | sgp30ecorE21.b1 |
D051101.6 | SGP/ECOR/E1 - ECOR Pressure and Temperature Missing | sgp30ecorE1.b1 |
D051101.7 | SGP/ECOR/E1 - CO2 and H2O Fluxes Incorrect | sgp30ecorE1.b1 |
D051101.8 | SGP/ECOR/E3 - CO2/H2O Sensor Not Working | sgp30ecorE3.b1 |
D060620.1 | SGP/ECOR/E21 - CO2 and Latent Heat Fluxes Incorrect | sgp30ecorE21.b1 |
D070402.1 | SGP/ECOR/E21 - Intermittent incorrect flux measurements | sgp30ecorE21.b1 |
D090122.1 | SGP/ECOR/E21 - Reprocess: 5 hour time offset | sgp30ecorE21.b1 |
D090902.9 | SGP/ECOR/E3 - Pressure and Temperature Missing | sgp30ecorE3.b1 |
D110513.10 | SGP/ECOR/E21 - TimeCheck Error | sgp30ecorE21.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 |
---|---|---|---|
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 |
---|---|---|---|
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 |
---|---|---|---|
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 |
---|---|---|---|
06/05/2005 | 0330 | 06/08/2005 | 2100 |
07/23/2005 | 1700 | 07/27/2005 | 1930 |
08/09/2005 | 0100 | 08/16/2005 | 1930 |
09/07/2005 | 1630 | 09/15/2005 | 1530 |
01/18/2006 | 1500 | 01/26/2006 | 1800 |
05/05/2006 | 2330 | 05/11/2006 | 0400 |
06/01/2006 | 2130 | 06/06/2006 | 2030 |
09/20/2006 | 0430 | 09/27/2006 | 1830 |
Subject: | SGP/ECOR/E21 - Missing data |
DataStreams: | sgp30ecorE21.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2005 | 1400 | 05/31/2006 | 1930 |
Subject: | SGP/ECOR/E1 - ECOR Pressure and Temperature Missing |
DataStreams: | sgp30ecorE1.b1 |
Description: | The pressure and temperature from the CO2/H2O sensor is missing due to a failure of some kind. |
Measurements: | sgp30ecorE1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/18/2005 | 2000 | 10/21/2005 | 1800 |
Subject: | SGP/ECOR/E1 - CO2 and H2O Fluxes Incorrect |
DataStreams: | sgp30ecorE1.b1 |
Description: | The CO2 and H2O fluxes (lv_e) were incorrect because of a LI-7500 failure. |
Measurements: | sgp30ecorE1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/29/2005 | 1100 | 02/08/2006 | 1700 |
Subject: | SGP/ECOR/E3 - CO2/H2O Sensor Not Working |
DataStreams: | sgp30ecorE3.b1 |
Description: | The CO2/H2O sensor failed. Means and fluxes of CO2 and H2O (lv_e) are incorrect or missing. |
Measurements: | sgp30ecorE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/13/2006 | 1230 | 04/25/2006 | 1500 |
Subject: | SGP/ECOR/E21 - CO2 and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ecorE21.b1 |
Description: | |
Measurements: | sgp30ecorE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2007 | 0800 | 08/29/2007 | 1730 |
Subject: | SGP/ECOR/E21 - Intermittent incorrect flux measurements |
DataStreams: | sgp30ecorE21.b1 |
Description: | At various times during the period, the LI-7500 CO2/H2O serial and analog signals from the LI-7500 were missing, but usually not at the same time. When the CO2/H2O serial datastream was missing, the Pressure and Temperature were missing; this did not, in itself, result in incorrect fluxes, as default values for pressure and temperature are automatically used. Fluxes were incorrect when the CO2/H2O analog datastream was missing; these times are identified by the qc checks. |
Measurements: | sgp30ecorE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/20/2009 | 2030 | 01/22/2009 | 1800 |
Subject: | SGP/ECOR/E21 - Reprocess: 5 hour time offset |
DataStreams: | sgp30ecorE21.b1 |
Description: | The system clock was mistakenly set to DST instead of GMT. All times are 5 hours behind. |
Measurements: | sgp30ecorE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/19/2009 | 1600 | 10/24/2009 | 2100 |
Subject: | SGP/ECOR/E3 - Pressure and Temperature Missing |
DataStreams: | sgp30ecorE3.b1 |
Description: | Pressure and temperature from the LI-7500 are missing. This did not affect the sensible and latent heat fluxes, however, much of the ECOR data is missing during this period. Attempts to correct the problem were unsuccessful until the time of site decommissioning. This facility was decommissioned and maintenance efforts ceased 10/1/2009. |
Measurements: | sgp30ecorE3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/07/2010 | 0000 | 06/29/2010 | 2359 |
Subject: | SGP/ECOR/E21 - TimeCheck Error |
DataStreams: | sgp30ecorE21.b1 |
Description: | Starting on 2010-06-07 the E21 system clock started drifting until the problem was corrected on 2010-06-29, The maximum daily offset reported in the collection logs were: Jun 7 offset: -5.04 Jun 8 Offset: -267.449039 Jun 9 Offset: -541.038624 Jun 10 Offset: -814.469141 Jun 11 Offset: -1076.862114 Jun 12 Offset: -1350.330223 Jun 13 Offset: -1623.639335 Jun 14 Offset: -1897.047754 Jun 15 Offset: -2170.552312 Jun 16 Offset: -2422.130746 Jun 17 Offset: -2684.607495 Jun 18 - Jun 22 (unknown) Jun 23 Offset: -4204.730579 |
Measurements: | sgp30ecorE21.b1:
|