DQR ID | Subject | Data Streams Affected |
---|---|---|
D040127.5 | SGP/ECOR/E10 - Timestamp problems and intermittent data gaps | sgp30ecorE10.b1, sgpecorE10.00 |
D040217.2 | SGP/CO2FLX/C1 - Reprocessing User Notes | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
D040217.3 | SGP/CO2FLX/C1 - Reprocessing User Notes | sgp30co2flx4mmetC1.b1 |
D040408.1 | SGP/ECOR/E16 - Data suspect due to inability to run QC | sgp30ecorE16.b1, sgpecorE16.00 |
D040505.5 | SGP/CO2FLX/C1 - Longwave Radiation Incorrect | sgp30co2flx4mmetC1.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 | sgp30ecorE6.b1, sgpecorE6.00 |
D040720.1 | SGP/ECOR/E10 - Sensor failure | sgp30ecorE10.b1, sgpecorE10.00 |
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 | sgp30ecorE1.b1, sgpecorE1.00 |
D041025.3 | SGP/ECOR/E10 - Sensor failure | sgp30ecorE10.b1, sgpecorE10.00 |
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 | sgp30ecorE3.b1, sgpecorE3.00 |
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 |
D050316.1 | SGP/CO2FLX/C1 - Reprocessed: User Notes | sgp30co2flx4mmetC1.b1 |
D050413.5 | SGP/ECOR/E10 - Reprocess: Incorrect H2O, CO2 | sgp30ecorE10.b1, sgpecorE10.00 |
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 |
D050718.2 | PYE/ECOR/M1 - Reprocessed: Wind direction offset corrected | pye30ecorM1.b1 |
D050912.5 | SGP/ECOR/E6 - Reprocess: Time Was 7 Hours Slow | sgp30ecorE6.b1 |
D050922.1 | SGP/ECOR/E24 - Reprocess: Time Was 7 Hours Behind | sgp30ecorE24.b1 |
D051024.3 | SGP/ECOR/E10 - Missing data | sgp30ecorE10.b1 |
D051031.3 | SGP/ECOR/E14 - CO2/H2O Incorrect | sgp30ecorE14.b1 |
D051031.5 | SGP/ECOR/E21 - Missing data | sgp30ecorE21.b1 |
D051031.6 | SGP/ECOR/E24 - CO2/H2O Incorrect | sgp30ecorE24.b1 |
D051101.10 | SGP/ECOR/E6 - CO2 and H2O Fluxes and Means Incorrect | sgp30ecorE6.b1 |
D051101.12 | SGP/ECOR/E24 - CO2 and H2O Fluxes and Means Incorrect | sgp30ecorE24.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 |
D051101.9 | SGP/ECOR/E5 - Missing data | sgp30ecorE5.b1 |
D051116.2 | SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect | sgp30co2flx4mmetC1.b1 |
D051116.3 | SGP/CO2FLX/C1 - Soil Temperature measurements | sgp30co2flx4mmetC1.b1 |
D051216.2 | SGP/ECOR/E14 - Flux Measurements Incorrect | sgp30ecorE14.b1 |
D060104.1 | SGP/ECOR/E16 - Flux Measurements Incorrect | sgp30ecorE16.b1 |
D060106.15 | NIM/ECOR/M1 - Missing data | nim30ecorM1.b1 |
D060510.1 | SGP/CO2FLX/C1 - Met stand was moved | sgp30co2flx4mmetC1.b1 |
D060530.1 | NIM/ECOR/M1 - Flux Data Suspect for Some Wind Directions | nim30ecorM1.b1 |
D060531.3 | SGP/ECOR/E10 - Reprocess: Wind Direction Incorrect | sgp30ecorE10.b1 |
D060616.3 | SGP/ECOR/E5 - CO2 and Water Vapor Fluxes and Means Incorrect | sgp30ecorE5.b1 |
D060619.2 | SGP/ECOR/E10 - LI-7500 Pressure and Temperature missing | sgp30ecorE10.b1 |
D060619.4 | SGP/ECOR/E16 - LI-7500 Pressure and Temperature missing | sgp30ecorE16.b1 |
D060620.1 | SGP/ECOR/E21 - CO2 and Latent Heat Fluxes Incorrect | sgp30ecorE21.b1 |
D060707.4 | SGP/ECOR/E16 - Latent Heat and CO2 Fluxes Incorrect | sgp30ecorE16.b1 |
D061103.4 | SGP/ECOR/E24 - Reprocess: ECOR Time 7 Hours Behind | sgp30ecorE24.b1 |
D070215.5 | NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft | nim30ecorM1.b1 |
D070223.1 | SGP/ECOR/E14 - Fluxes and Most Measurements Incorrect | sgp30ecorE14.b1 |
D070227.1 | SGP/ECOR/E5 - Reprocess: Time shifted -7 hours | sgp30ecorE5.b1, sgpecorE5.00 |
D070402.1 | SGP/ECOR/E21 - Intermittent incorrect flux measurements | sgp30ecorE21.b1 |
D070416.4 | SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect | sgp30co2flx4mmetC1.b1 |
D070509.1 | SGP/ECOR/E10 - CO2 and Latent Heat Fluxes Incorrect | sgp30ecorE10.b1 |
D070510.1 | SGP/ECOR/E5 - Flux Measurements Incorrect | sgp30ecorE5.b1 |
D070514.2 | SGP/ECOR/E14 - IRGA Temperature Incorrect or Missing | sgp30ecorE14.b1 |
D070619.1 | SGP/ECOR/E5 - Flux Data Incorrect | sgp30ecorE5.b1 |
D070803.2 | SGP/CO2FLX/C1 - Disturbance around site | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
D070918.3 | SGP/CO2FLX/C1 - Farm operation | sgp30co2flx4mmetC1.b1 |
D080109.1 | FKB/ECOR/M1 - Flux Data Suspect For Some Wind Directions | fkb30ecorM1.b1 |
D080125.4 | PYE/ECOR/M1 - Flux Data Suspect For Some Wind Directions | pye30ecorM1.b1 |
D080313.1 | SGP/ECOR/E24 - Water Vapor Density Incorrect | sgp30ecorE24.b1 |
D080428.1 | SGP/ECOR/E24 - Half Hours of Data Missing | sgp30ecorE24.b1 |
D080526.1 | SGP/ECOR/E10 - Incorrect CO2 fluxes | sgp30ecorE10.b1 |
D080604.2 | SGP/ECOR/E14 - Sensor failure | sgp30ecorE14.b1 |
D081007.2 | HFE/ECOR/M1 - Sonic failure | hfe30ecorM1.b1 |
D090122.1 | SGP/ECOR/E21 - Reprocess: 5 hour time offset | sgp30ecorE21.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: | sgp30ecorE10.b1, sgpecorE10.00 |
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 |
---|---|---|---|
12/18/2002 | 0000 | 02/17/2004 | 0000 |
Subject: | SGP/CO2FLX/C1 - Reprocessing User Notes |
DataStreams: | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
Description: | Format Changes: To comply with archive standards, the name of the unlimited dimention variable in the cdf level b1 files was changed from 'record' to 'time'. This does not affect data quality. |
Measurements: | sgp30co2flx60mC1.b1:
sgp30co2flx4mC1.b1:
sgp30co2flx25mC1.b1:
sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2002 | 0000 | 12/18/2003 | 0000 |
Subject: | SGP/CO2FLX/C1 - Reprocessing User Notes |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | A subset of the radiation measurements had an incorrect gain applied to raw data in period from 20021218-20031218. To correct for this, a multiplicative correction factor of 1.11 were applied to raw data used for the following variables: r_down_short_hemisp r_down_long_hemisp r_up_short_hemisp r_up_long_hemisp Note that the long wave variables are computed by adding the black body thermal radiation from the radiometer body to each of the long wave signals. Hence, the multiplicative correction is applied to the raw long wave fluxes before adding in the flux from the radiometer body. |
Measurements: | sgp30co2flx4mmetC1.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: | sgp30ecorE16.b1, sgpecorE16.00 |
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: | sgp30ecorE16.b1:
sgpecorE16.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2003 | 0000 | 04/28/2004 | 1900 |
Subject: | SGP/CO2FLX/C1 - Longwave Radiation Incorrect |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Long wave radiation values (r_up_long_hemisp, r_down_long_hemisp) are bad due to correction with bad radiometer body temperature (t_rad) resulting from a wiring issue. |
Measurements: | sgp30co2flx4mmetC1.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: | sgp30ecorE6.b1, sgpecorE6.00 |
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: | sgp30ecorE10.b1, sgpecorE10.00 |
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: | sgp30ecorE1.b1, sgpecorE1.00 |
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: | sgpecorE1.00:
sgp30ecorE1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/22/2004 | 1830 | 12/14/2004 | 2200 |
Subject: | SGP/ECOR/E10 - Sensor failure |
DataStreams: | sgp30ecorE10.b1, sgpecorE10.00 |
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: | sgp30ecorE3.b1, sgpecorE3.00 |
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: | sgp30ecorE3.b1:
sgpecorE3.00:
|
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 |
---|---|---|---|
12/18/2002 | 0000 | 03/15/2005 | 2359 |
Subject: | SGP/CO2FLX/C1 - Reprocessed: User Notes |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Replacement of LI-200 sensor (total downwelling shortwave radiation, variable r_tot) by a new LI-190 sensor (upwelling photosynthetic photon flux density, variable ppfd_up). The new LI-190 sensor was: - installed on December 9, 2004. - being tested from December 9, 2004 to December 22, 2004. - operational after December 22, 2004. Consequently: 1. variable "r_tot" is filled with missing values (qc_r_tot = 1) after December 9, 2004, 2. variable "ppfd_up" is filled with missing values (qc_ppfd_up = 1) prior December 22, 2004. |
Measurements: | sgp30co2flx4mmetC1.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: | sgp30ecorE10.b1, sgpecorE10.00 |
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 |
---|---|---|---|
04/08/2005 | 0000 | 07/20/2005 | 1748 |
Subject: | PYE/ECOR/M1 - Reprocessed: Wind direction offset corrected |
DataStreams: | pye30ecorM1.b1 |
Description: | The SMET wind direction was consistently 15 to 20 degrees larger than the wind direction determined by the ECOR. The ECOR was mistakenly aligned to magnetic north during this period. The magnetic declination is 14 deg. 58 min., which explains most of the difference. The ECOR data for this period were reprocessed in November 2006 to add 15 degrees to the wind direction. No other changes were made to the data. The reprocessed data were archived in January 2007. |
Measurements: | pye30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2005 | 0900 | 09/22/2005 | 1540 |
Subject: | SGP/ECOR/E6 - Reprocess: Time Was 7 Hours Slow |
DataStreams: | sgp30ecorE6.b1 |
Description: | When the site computer was changed on 8/11, the time was set 7 hours behind the correct time. This will be corrected by future reprocessing of the data. |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/16/2005 | 0800 | 09/29/2005 | 1430 |
Subject: | SGP/ECOR/E24 - Reprocess: Time Was 7 Hours Behind |
DataStreams: | sgp30ecorE24.b1 |
Description: | When the site computer was changed on 9/16 the time was set 7 hours behind the actual time. This problem may be fixed during future reprocessing of the data. |
Measurements: | sgp30ecorE24.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 |
---|---|---|---|
08/25/2005 | 0000 | 08/29/2005 | 0230 |
Subject: | SGP/ECOR/E14 - CO2/H2O Incorrect |
DataStreams: | sgp30ecorE14.b1 |
Description: | The LI-7500 CO2/H2O sensor stopped working after a rainstorm. CO2 and H2O data are incorrect during the stated period. |
Measurements: | sgp30ecorE14.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 |
---|---|---|---|
06/22/2005 | 0900 | 06/24/2005 | 1500 |
Subject: | SGP/ECOR/E24 - CO2/H2O Incorrect |
DataStreams: | sgp30ecorE24.b1 |
Description: | The CO2/H2O sensor was not working during this period. All CO2 and H2O means and fluxes are incorrect and LI-7500 pressure and temperature are also incorrect. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/30/2005 | 1930 | 09/13/2005 | 0700 |
Subject: | SGP/ECOR/E6 - CO2 and H2O Fluxes and Means Incorrect |
DataStreams: | sgp30ecorE6.b1 |
Description: | The CO2 and H2O (lv_e) fluxes and means were incorrect during the period because the LI-7500 was not working. |
Measurements: | sgp30ecorE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/24/2005 | 2330 | 08/29/2005 | 0300 |
Subject: | SGP/ECOR/E24 - CO2 and H2O Fluxes and Means Incorrect |
DataStreams: | sgp30ecorE24.b1 |
Description: | The CO2 and H2O (lv_e) fluxes adn means were incorrect while the LI-7500 sensor was not working. |
Measurements: | sgp30ecorE24.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 |
---|---|---|---|
01/04/2005 | 2230 | 01/12/2005 | 1830 |
Subject: | SGP/ECOR/E5 - Missing data |
DataStreams: | sgp30ecorE5.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30ecorE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/28/2004 | 1900 | 11/16/2005 | 0000 |
Subject: | SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | A problem was identified with the downwelling longwave hemispheric irradiance (variable "r_down_long_hemisp") calibration of our Kipp & Zonen CNR1 radiometer. The offset of the instrument is believed to be incorrect over the specified time frame, and a correction of the problem is underway. |
Measurements: | sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2002 | 0000 | 11/16/2005 | 0000 |
Subject: | SGP/CO2FLX/C1 - Soil Temperature measurements |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Current data quality check (qc) procedure does not catch spikes in soil temperature measurements. A new qc procedure is being tested and will improve the current procedure. |
Measurements: | sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/2005 | 1330 | 11/17/2005 | 1630 |
12/01/2005 | 1930 | 12/13/2005 | 1630 |
01/24/2006 | 1500 | 02/13/2006 | 1930 |
05/05/2006 | 2100 | 06/13/2006 | 1400 |
07/07/2006 | 1930 | 07/14/2006 | 1500 |
Subject: | SGP/ECOR/E14 - Flux Measurements Incorrect |
DataStreams: | sgp30ecorE14.b1 |
Description: | The ECOR datastream was corrupted; this happens when the ECOR program produces a datastream of the wrong length (i.e., leaves one or more measurements out). Fluxes and some other measurements are incorrect. Reprocessing will not correct this problem; the raw data are corrupted. |
Measurements: | sgp30ecorE14.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/09/2005 | 1630 | 01/18/2006 | 1230 |
Subject: | SGP/ECOR/E16 - Flux Measurements Incorrect |
DataStreams: | sgp30ecorE16.b1 |
Description: | The ECOR datastream was corrupted; this happens when the ECOR program produces a datastream of the wrong length (i.e., leaves one or more measurements out). Fluxes and some other measurements are incorrect. Reprocessing will not correct this problem; the raw data are corrupted. |
Measurements: | sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2005 | 0830 | 12/13/2005 | 1230 |
01/28/2006 | 0330 | 01/30/2006 | 0800 |
08/25/2006 | 1930 | 08/29/2006 | 0730 |
Subject: | NIM/ECOR/M1 - Missing data |
DataStreams: | nim30ecorM1.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | nim30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/11/2006 | 1530 | 04/19/2006 | 1500 |
Subject: | SGP/CO2FLX/C1 - Met stand was moved |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Ameriflux program (Hank Loescher from Oregon state university) visits the site to intercompare his instruments with our 4m flux system. The met stand was moved by 30 feet and consequently: 1. Soil moisture sensors were disconnected, 2. Soil temperature sensors were disconnected, 3. Soil heat plates were disconnected, 4. The true direction of the anemometer boom was 230 degrees instead of the regular 270 degrees. |
Measurements: | sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/26/2005 | 1530 | 01/07/2007 | 2359 |
Subject: | NIM/ECOR/M1 - Flux Data Suspect for Some Wind Directions |
DataStreams: | nim30ecorM1.b1 |
Description: | NIM: For some wind directions the horizontal fetch was not representative of the field in which the AMF was located. Therefore, for the wind direction ranges 90-170 (buildings) and 220-280 (trees) degrees, the fluxes are affected by insufficient fetch and surfaces, buildings, or vegetation that are not similar to the local field conditions. |
Measurements: | nim30ecorM1.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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/14/2006 | 2130 | 06/17/2006 | 1030 |
Subject: | SGP/ECOR/E5 - CO2 and Water Vapor Fluxes and Means Incorrect |
DataStreams: | sgp30ecorE5.b1 |
Description: | The LI-7500 at E5 ECOR did not putting out data during this period. Therefore, CO2 and H2O fluxes and means were incorrect during the period. |
Measurements: | sgp30ecorE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/11/2006 | 0130 | 07/31/2006 | 0730 |
Subject: | SGP/ECOR/E10 - LI-7500 Pressure and Temperature missing |
DataStreams: | sgp30ecorE10.b1 |
Description: | The LI-7500 pressure and temperature were not recorded; the serial datastream was not being captured by the ECOR. |
Measurements: | sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/17/2006 | 0230 | 08/02/2006 | 1530 |
Subject: | SGP/ECOR/E16 - LI-7500 Pressure and Temperature missing |
DataStreams: | sgp30ecorE16.b1 |
Description: | The pressure and temperature measurements were not recorded; the LI-7500 serial datastream was not being captured by the ECOR system because of a serial port failure. Some degradation of the latent and sensible heat fluxes may have occurred during high summer temperatures. The error in the fluxes would be no more than 5 to 10% of the measurement, still well within the measurement error of the system. |
Measurements: | sgp30ecorE16.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 |
---|---|---|---|
06/21/2006 | 1500 | 06/23/2006 | 1600 |
Subject: | SGP/ECOR/E16 - Latent Heat and CO2 Fluxes Incorrect |
DataStreams: | sgp30ecorE16.b1 |
Description: | The LI-7500 CO2/H2O water vapor sensor was removed during this period. |
Measurements: | sgp30ecorE16.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/26/2006 | 0930 | 11/07/2006 | 0830 |
11/10/2006 | 1330 | 11/14/2006 | 0730 |
Subject: | SGP/ECOR/E24 - Reprocess: ECOR Time 7 Hours Behind |
DataStreams: | sgp30ecorE24.b1 |
Description: | The ECOR time was 7 hours behind during these periods. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/26/2005 | 1530 | 01/07/2007 | 2330 |
Subject: | NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft |
DataStreams: | nim30ecorM1.b1 |
Description: | Aircraft landings, departures, and running aircraft on the airport pad were found to produce large spikes in the half hourly CO2 flux and small spikes in CO2 concentration on many days during the entire deployment of the AMF at NIM. This influence was found on 40% of the days in March and April 2006 and sometimes for multiple periods in a day; this was typical of the year of data. The spikes range from only several micromoles s-1 m-2 to one hundred or more for flux (a typical spike was in the twenties) and near zero to 1.0 mmoles m-3 for CO2 concentration (typically around 0.15). The aircraft influence was caused by persistent easterly winds; the airport terminal pad and the nearest part of the runway were almost directly to the east of the ECOR location. Occasionally an influence on water vapor density was detected, but this was fairly rare and usually of very small magnitude. |
Measurements: | nim30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/14/2007 | 0500 | 02/02/2007 | 1600 |
Subject: | SGP/ECOR/E14 - Fluxes and Most Measurements Incorrect |
DataStreams: | sgp30ecorE14.b1 |
Description: | The ECOR system was having major problems during this period and most measurements were incorrect most of the time. |
Measurements: | sgp30ecorE14.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/21/2007 | 1900 | 02/23/2007 | 2330 |
Subject: | SGP/ECOR/E5 - Reprocess: Time shifted -7 hours |
DataStreams: | sgp30ecorE5.b1, sgpecorE5.00 |
Description: | An inadvertant power outage caused the ECOR program to shut down abnormally. When power was restored, the timestamps on the ECOR files were 7 hours behind the correct time and the site ID was not accessed from the ECOR configuration file resulting in site ID (05) being replaced with "AN". These conditions caused the ECOR files to be unrecognizable and therefore are presently missing in the Archive. Correction of the timestamp and ID in the files should allow them to be processed and added to the Archive. |
Measurements: | sgpecorE5.00:
sgp30ecorE5.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 |
---|---|---|---|
04/28/2004 | 0000 | 04/02/2007 | 1930 |
Subject: | SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Downwelling longwave radiation measurements (variable "r_down_long_hemisp") are bad due to a wiring issue. Users should not use the downwelling longwave hemispheric irradiance during this period. The downwelling shortwave and longwave radiation at CF is also available from the Broadband Radiometer Station (BRS). |
Measurements: | sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/02/2007 | 1530 | 05/07/2007 | 0200 |
Subject: | SGP/ECOR/E10 - CO2 and Latent Heat Fluxes Incorrect |
DataStreams: | sgp30ecorE10.b1 |
Description: | The CO2 and latent heat fluxes were incorrect because the sonic anemometer was not working properly. |
Measurements: | sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/20/2005 | 1930 | 12/14/2005 | 1930 |
04/18/2007 | 1930 | 05/17/2007 | 1815 |
Subject: | SGP/ECOR/E5 - Flux Measurements Incorrect |
DataStreams: | sgp30ecorE5.b1 |
Description: | The ECOR datastream was corrupted; this happens when the ECOR program produces a datastream of the wrong length (i.e., leaves one or more measurements out). Fluxes and some other measurements are incorrect. Note: Mentor reports reprocessing will not correct this problem. |
Measurements: | sgp30ecorE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/09/2007 | 1300 | 05/19/2007 | 1700 |
Subject: | SGP/ECOR/E14 - IRGA Temperature Incorrect or Missing |
DataStreams: | sgp30ecorE14.b1 |
Description: | The temp_irga was too large 05/09/07 1300 GMT - 05/10/07 2000 GMT. The temp_irga was flat lined at 49.96 C 05/10/07 2030 GMT - 05/17/07 2000 GMT. The temp_irga was missing 05/17/07 2030 GMT - 05/19/07 1700 GMT. |
Measurements: | sgp30ecorE14.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2007 | 0300 | 12/12/2007 | 2030 |
Subject: | SGP/ECOR/E5 - Flux Data Incorrect |
DataStreams: | sgp30ecorE5.b1 |
Description: | CO2 flux (lv_e) and latent heat flux (fc) were incorrect because the sonic anemometer was not working. |
Measurements: | sgp30ecorE5.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/24/2007 | 1300 | 07/26/2007 | 2359 |
Subject: | SGP/CO2FLX/C1 - Disturbance around site |
DataStreams: | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
Description: | A bulldozer used to excavate the SGP Tower anchors was right around (within 10 feet) our systems. |
Measurements: | sgp30co2flx60mC1.b1:
sgp30co2flx4mC1.b1:
sgp30co2flx25mC1.b1:
sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/22/2007 | 1830 | 09/07/2007 | 1800 |
Subject: | SGP/CO2FLX/C1 - Farm operation |
DataStreams: | sgp30co2flx4mmetC1.b1 |
Description: | Soil temperature, soil moisture, soil heat flux and upwelling surface radiation (long, short, and PAR) measurements were not valid from 20070822 to 20070907 due to farm operations. |
Measurements: | sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/14/2007 | 1030 | 01/01/2008 | 0700 |
Subject: | FKB/ECOR/M1 - Flux Data Suspect For Some Wind Directions |
DataStreams: | fkb30ecorM1.b1 |
Description: | For some wind directions the horizontal fetch was not representative of the field in which the AMF was located. Therefore, for the wind direction ranges 40-159 and 176-209 degrees, the fluxes are affected by insufficient fetch and surfaces, buildings, and vegetation that are not similar to the local field conditions. |
Measurements: | fkb30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/15/2005 | 2330 |
Subject: | PYE/ECOR/M1 - Flux Data Suspect For Some Wind Directions |
DataStreams: | pye30ecorM1.b1 |
Description: | For some wind directions the horizontal fetch was not representative of the field in which the AMF was located. Therefore, for the wind direction ranges 66-92 (buildings and trees) degrees, the fluxes are affected by insufficient fetch and surfaces, buildings, or vegetation that are not similar to the local field conditions. |
Measurements: | pye30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2008 | 0000 | 04/12/2008 | 0230 |
Subject: | SGP/ECOR/E24 - Water Vapor Density Incorrect |
DataStreams: | sgp30ecorE24.b1 |
Description: | Mean Water Vapor Density (mean_q) often did not trend well with the co-located SMOS and sometimes jumped downwards approximately 200 to 300 mmol/m^3. Some of the instances were clearly a result of contamination by precipitation, but others were not; the latent heat flux was sometimes affected. It was determined that all instances of this behavior from the beginning of 2008 through the beginning date of this DQR were caused by precipitation/dew/frost. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/27/2006 | 0530 | 11/08/2007 | 1600 |
Subject: | SGP/ECOR/E24 - Half Hours of Data Missing |
DataStreams: | sgp30ecorE24.b1 |
Description: | Individual half hours of data were missing infrequently because of a UPS problem. The extent of missing data is minimal, with only a few to several half hours missing most months. Data quality of the surrounding data times was not affected. |
Measurements: | sgp30ecorE24.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/10/2008 | 1130 | 06/25/2008 | 1500 |
Subject: | SGP/ECOR/E10 - Incorrect CO2 fluxes |
DataStreams: | sgp30ecorE10.b1 |
Description: | The analog CO2 signal from the LI-7500 to the sonic anemometer became very noisy and incorrect CO2 fluxes resulted. Sonic anemometer was replaced. |
Measurements: | sgp30ecorE10.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/02/2008 | 1330 | 06/05/2008 | 1930 |
Subject: | SGP/ECOR/E14 - Sensor failure |
DataStreams: | sgp30ecorE14.b1 |
Description: | The water vapor output of the LI-7500 was too low, indicating that water vapor leaked into the sensor and that the chemicals are spent or there was an electronic failure. Latent heat flux was not normally affected by this problem. |
Measurements: | sgp30ecorE14.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2008 | 0400 | 10/12/2008 | 0230 |
Subject: | HFE/ECOR/M1 - Sonic failure |
DataStreams: | hfe30ecorM1.b1 |
Description: | The sonic datastream were "garbled", possibly associated with a serial line damage to the LI-7500 serial port or the Versalogic SBC serial port. Garbled data condition existed through 10/09/08 0030 GMT followed by missing data through 10/12/08 0230 GMT. |
Measurements: | hfe30ecorM1.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:
|