| DQR ID | Subject | Affected Data Streams | Data Quality Metric |
|---|---|---|---|
| D150727.7 | SGP/SWATS/E34 - Measurements at Several Depths Are Suspect | sgpswatsE34.b1 | Suspect |
| D150810.6 | SGP/SWATS/E12 - Measurements Suspect | sgpswatsE12.b1 | Suspect |
| D150810.1 | SGP/SWATS/E11 - 35 cm E sensor Inconsistent with 35 cm W | sgpswatsE11.b1 | Suspect |
| D130930.1 | SGP/SWATS/E15 - Noisy East 25cm sensor data | sgpswatsE15.b1 | Suspect |
| D150727.10 | SGP/SWATS/E31 - 60 cm W Measurements Suspect | sgpswatsE31.b1 | Suspect |
| D110629.2 | SGP/SWATS/E13 - Failed sensor W 25cm | sgpswatsE13.b1 | Incorrect |
| D150727.3 | SGP/SWATS/E37 - 85 cm E Values Suspect | sgpswatsE37.b1 | Suspect |
| D081210.12 | SGP/SWATS/E15 - Sensor failure, 5cm E | sgpswatsE15.b1 | Incorrect |
| D150727.13 | SGP/SWATS/E13 - 60 cm E Measurements Incorrect | sgpswatsE13.b1 | Incorrect |
| D150727.2 | SGP/SWATS/E38 - Fractional Water Index above Normal Limit | sgpswatsE38.b1 | Suspect |
| D150727.6 | SGP/SWATS/E35 - Measurements at Several Depths Are Suspect | sgpswatsE35.b1 | Suspect |
| D090714.3 | SGP/SWATS/E11 - Incorrect soil moisture, 60cm E | sgpswatsE11.b1 | Incorrect |
| D150727.8 | SGP/SWATS/E33 - 5 cm E Measurements Suspect | sgpswatsE33.b1 | Suspect |
| D150727.9 | SGP/SWATS/E33 - Measurements at Several Depths Are Suspect | sgpswatsE33.b1 | Suspect |
| D150727.4 | SGP/SWATS/E36 - Several Depths of Measurements Suspect | sgpswatsE36.b1 | Suspect |
| D150803.3 | SGP/SWATS/E13 - 5 cm Measurements are suspect | sgpswatsE13.b1 | Suspect |
| D151201.2 | SGP ALL INSTRUMENTS - Icing Event | sgpswatsE15.b1 | Note |
| D150810.5 | SGP/SWATS/E12 - Soil Measurements Suspect | sgpswatsE12.b1 | Suspect |
| D140806.3 | SGP/SWATS/E13 - Sensor failure from loose connections | sgpswatsE13.b1 | Missing |
| D170329.13 | SGP/SWATS (All) - Similar Soil Temperature Trends At Soil Depths Below 15 cm; Exaggerated at E31-E38 | sgpswatsE15.b1 | Suspect |
| D150810.4 | SGP/SWATS/E11 - Depth 125 and 175 Soil Measurements Suspect | sgpswatsE11.b1 | Suspect |
| D160104.7 | SGP Site Power Outage Due to Winter Storm | sgp915rwpprecipconC1.a1 | Note |
| D160301.3 | SGP/SWATS/E38 -25 cm intermittent data | sgpswatsE38.b1 | Incorrect |
| D150727.5 | SGP/SWATS/E36 - 15 cm E Measurements Suspect | sgpswatsE36.b1 | Suspect |
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2013-05-13 | 00:00:00 | 2016-02-26 | 17:00:00 | Suspect |
| Subject: | SGP/SWATS/E34 - Measurements at Several Depths Are Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE34.b1 |
| Description | Measurements at several depths are suspect because of probe failures: Start date for 15cmE: 8/3/2013 Start date for 15cm W: 8/1/2013 Start date for 25cm E: 6/23/2013 Start date for 25cm W: 6/13/2013 Start date for 35cm E: 7/26/2013 Start date for 35cm W: 6/4/2013 Start date for 60cm E: 5/13/2013 Start date for 60cm W: 6/29/2013 |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-07-14 | 18:00:00 | 2016-03-04 | 16:00:00 | Suspect |
| Subject: | SGP/SWATS/E12 - Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE12.b1 |
| Description | 15 cm E trise values are too low and thus resulting measurements are also suspect. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2014-10-01 | 00:00:00 | 2016-02-25 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E11 - 35 cm E sensor Inconsistent with 35 cm W |
|---|---|
| Affected Datastreams: | sgpswatsE11.b1 |
| Description | The 35 cm E sensor seems to report incongruent temperature rise, fractional water index, and soil water potential values. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2013-07-14 | 21:00:00 | 2013-08-23 | 16:00:00 | Suspect |
| Subject: | SGP/SWATS/E15 - Noisy East 25cm sensor data |
|---|---|
| Affected Datastreams: | sgpswatsE15.b1 |
| Description | The trise variable for the East 25cm sensor was sporadic beginning July 14. The values were spiking upward (dry) especially during rain events. After re-seating the wires the values returned to normal, less noisy with no spikes during rain events. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2014-09-19 | 22:00:00 | 2016-03-03 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E31 - 60 cm W Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE31.b1 |
| Description | 60 cm W measurements are suspect because trise maximum is exceeded at times. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2011-06-23 | 21:00:00 | 2017-07-03 | 15:00:00 | Incorrect |
| Subject: | SGP/SWATS/E13 - Failed sensor W 25cm |
|---|---|
| Affected Datastreams: | sgpswatsE13.b1 |
| Description | After a lightning strike near the CF, the SWATS trise values were reporting near zero. The current channel in the CE8 module failed, so the wire was moved to the next channel and trise values returned to normal, except for the West 25cm sensor. The trise for this sensor remained at zero, and did not change after re-seating the connections. Likely sensor has failed. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2016-02-29 | 17:00:00 | Suspect |
| Subject: | SGP/SWATS/E37 - 85 cm E Values Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE37.b1 |
| Description | The 85 cm E values are suspect. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2006-01-06 | 23:00:00 | 2016-03-01 | 18:00:00 | Incorrect |
| Subject: | SGP/SWATS/E15 - Sensor failure, 5cm E |
|---|---|
| Affected Datastreams: | sgpswatsE15.b1 |
| Description | The 5 cm sensor installed in the east profile failed on 01/06/2006 at 23:00 GMT. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2014-09-26 | 00:00:00 | 2017-07-03 | 15:00:00 | Incorrect |
| Subject: | SGP/SWATS/E13 - 60 cm E Measurements Incorrect |
|---|---|
| Affected Datastreams: | sgpswatsE13.b1 |
| Description | 60 cm E measurements are incorrect because of a probe failure. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2015-07-24 | 19:30:00 | Suspect |
| Subject: | SGP/SWATS/E38 - Fractional Water Index above Normal Limit |
|---|---|
| Affected Datastreams: | sgpswatsE38.b1 |
| Description | Fractional water index maximum limit and trise limit being exceeded may indicate that the soil moisture calibration is incorrect for the 25 cm west and east measurements. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2016-03-02 | 15:00:00 | Suspect |
| Subject: | SGP/SWATS/E35 - Measurements at Several Depths Are Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE35.b1 |
| Description | Measurements at several depths are suspect because of probe failures: 35cm W, 60cm W, 60cm E, 85cm W, 85cm E |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2009-07-12 | 16:00:00 | 2016-02-25 | 14:00:00 | Incorrect |
| Subject: | SGP/SWATS/E11 - Incorrect soil moisture, 60cm E |
|---|---|
| Affected Datastreams: | sgpswatsE11.b1 |
| Description | All trise values from the 60 cm E sensor are incorrectly reporting near zero. This also causes the matric potential (soilwatpot_E) and water content (watcont_E) data to be incorrect at this depth. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-04-13 | 06:00:00 | 2016-02-23 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E33 - 5 cm E Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE33.b1 |
| Description | 5 cm E measurements are suspect because of a failed probe. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2012-05-15 | 00:00:00 | 2016-02-23 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E33 - Measurements at Several Depths Are Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE33.b1 |
| Description | Measurements at several depths are suspect because of probe failures: 5cm E 15cm E 35cm E 85cm E 125cm E 125cm W 175cm W |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2016-02-29 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E36 - Several Depths of Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE36.b1 |
| Description | Several depths of measurements are suspect with starting dates as follows: Start date for 5cm W: 3/22/2015 Start date for 15cm W: 3/20/2015 Start date for 25cm W: 3/20/2015 Start date for 35cm E: 3/21/2015 Start date for 125cm E: 3/20/2015 |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-01-05 | 00:00:00 | 2017-07-03 | 15:00:00 | Suspect |
| Subject: | SGP/SWATS/E13 - 5 cm Measurements are suspect |
|---|---|
| Affected Datastreams: | sgpswatsE13.b1 |
| Description | 5 cm measurements are suspect because of incorrect calibration and probe failures. Other depths occasionally spike as well. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-11-27 | 00:00:00 | 2015-11-30 | 23:59:59 | Note |
| Subject: | SGP ALL INSTRUMENTS - Icing Event |
|---|---|
| Affected Datastreams: | sgpswatsE15.b1 |
| Description | An icing event (winter storm Cara) passed slowly through the area during this time frame. Instruments at the SGP may have been affected by ice accumulation. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-07-25 | 00:00:00 | 2016-03-04 | 16:00:00 | Suspect |
| Subject: | SGP/SWATS/E12 - Soil Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE12.b1 |
| Description | trise and resulting measurements are suspect for 5cm E and W, 15 cm W, 25 cm E, 35 cm E. This may be a probe calibration problem. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2014-07-17 | 19:00:00 | 2014-07-31 | 16:00:00 | Missing |
| Subject: | SGP/SWATS/E13 - Sensor failure from loose connections |
|---|---|
| Affected Datastreams: | sgpswatsE13.b1 |
| Description | All data for the 35 cm West sensor is missing for this time range. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 1996-02-05 | 00:00:00 | 2016-03-03 | 23:30:00 | Suspect |
| Subject: | SGP/SWATS (All) - Similar Soil Temperature Trends At Soil Depths Below 15 cm; Exaggerated at E31-E38 |
|---|---|
| Affected Datastreams: | sgpswatsE15.b1 |
| Description | All soil levels below 15cm show essentially the same magnitude of soil temperature change on a daily basis and at the same times as the 15cm level, with no delay at greater depths. This does not represent physical reality at these depths. Furthermore, this behavior began with the very first installation of the SWATS and has been seen in every SWATS system. However, the magnitude of this problem is much greater at extended facilities E31 through E38. Comparison of the SWATS with co-located SEBS or EBBR 5cm soil temperatures shows that the diurnal trend of soil temperature at 5cm is similar for the SWATS and the EBBR or SEBS, but usually exhibits a larger maximum and a lower minimum. The SWATS minimum also is reached less smoothly than the EBBR or SEBS. This is likely because the SEBS and EBBR soil temperature measurements are an integration from the surface to 5cm depth. The SWATS pattern is also seen, to a much more minor extent, in the trise, trise_ref, water content, soil water potential, and fractional water index measurements at 15cm and below; however, the variation in these measurements is well within the uncertainty of the measurements. It appears that the SWATS probe thermistor lead connections with the datalogger terminal strip were acting as thermocouples. Why the effect was so much greater at E31-38 is not clear, but it probably has something to do with how the lead connections to the datalogger were performed. This situation particularly affects the measurements during daytime hours, and corresponds with heating of the SWATS enclosure by the Sun. 5cm SWATS soil temperatures are very similar to co-located EBBR or SEBS 1-5 cm integrated temperatures at most extended facilities, and therefore appear to be valid (the solar heating/thermocouple effect may be swamped by the actual soil temperature diurnal change). 15cm SWATS soil temperatures may also be valid at extended facilities other than E31-38, as they show a larger diurnal variation than lower depths and about midway in magnitude between the 5cm and 25 cm measurements. Since it seems likely that the soil temperature measurements below 15cm were affected by the solar heating of the enclosure at all but E31-38, and at all depths below 5cm at E31-38, individual measurements of soil temperature at these depths during daylight hours, and daily averages of the same, can not be trusted on most (particularly sunny) days. The effect on cloudy days seems smaller. For further information see the SWATS technical report: https://www.arm.gov/publications/tech_reports/doe-sc-arm-tr-193.pdf |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-05-12 | 15:07:00 | 2016-02-25 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E11 - Depth 125 and 175 Soil Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE11.b1 |
| Description | Depth 125 and 175 east and west trise values have exceeded their maximum limits, probably the result of incorrect calibration of the sensors. This problem will not be resolved until the SWATS system is replaced by a new system. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-12-26 | 00:00:00 | 2016-01-01 | 23:59:59 | Note |
| Subject: | SGP Site Power Outage Due to Winter Storm |
|---|---|
| Affected Datastreams: | sgp915rwpprecipconC1.a1 |
| Description | On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result was very very slick roads and mass power outages. The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th. The power was restored on 7:56 PM CDT on Wednesday, December 30th Site Emergency procedures were activated and Technicians drained water out of instrument reservoirs and other measures as needed, early Monday morning. On Wednesdays as roads and power started was restored to much of the areas east of I-35 , Site Technicians performed maintenance on several Extended Facilities. During this period, data are potentially missing, incorrect, or suspect. Carefully inspect the data before use. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2016-03-01 | 13:00:00 | Incorrect |
| Subject: | SGP/SWATS/E38 -25 cm intermittent data |
|---|---|
| Affected Datastreams: | sgpswatsE38.b1 |
| Description | 25 cm East and West profile data is often intermittent, particularly at night. |
| Measurements |
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 2015-03-20 | 00:00:00 | 2016-02-29 | 14:00:00 | Suspect |
| Subject: | SGP/SWATS/E36 - 15 cm E Measurements Suspect |
|---|---|
| Affected Datastreams: | sgpswatsE36.b1 |
| Description | The 15 cm E measurements are suspect because of probe failure. |
| Measurements |
|