SGP/SWATS/E4 - Incorrect soil moisture data

The temperature rise readings on both the east and west profiles are too high.  This also 
causes the matric potential and water content data to be incorrect.

For the first, third and fourth date ranges, measurements are incorrect for all sensor 
locations (each depth on both profiles).

For the second date range, measurements are incorrect for the lowest 8 sensor locations 
(the 60cm, 85cm, 125cm, and 175cm depths on both profiles).

• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, West Profile(watcont_W)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E8 - Sensor failure, 15cm W

The temperature rise readings from the 15-cm depth on the west profile are incorrect. This 
also causes the matric potential and water content data to be incorrect.

Instrument removed from service 20091110.

• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E24 - Sensor failure

The readings from the 125-cm depth on the east profile began reporting missing values for 
all variables (tsoil_E, trise_E, soilwatpot_E, watcont_E) after maintenance corrected 
soil moisture data problems on May 13, 2004 at 1900 GMT. All data from this sensor are 
missing from this point on.

• Soil Water Potential, East Profile(soilwatpot_E)
• serial_numbers_E
• North latitude(lat)
• Volumetric Water Content, West Profile(watcont_W)
• base_time
• Altitude above mean sea level(alt)
• tref
• Soil Temperature, West Profile(tsoil_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Sensor Temperature Rise, East Profile(trise_E)
• serial_numbers_W
• time_offset
• Volumetric Water Content, East Profile(watcont_E)
• depth
• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Temperature, East Profile(tsoil_E)
• East longitude(lon)

SGP/SWATS/E7 - Missing Data

Data are missing and unrecoverable.

• time_offset
• East longitude(lon)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, West Profile(soilwatpot_W)
• tref
• Altitude above mean sea level(alt)
• Soil Temperature, West Profile(tsoil_W)
• serial_numbers_W
• North latitude(lat)
• serial_numbers_E
• depth
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• base_time
• Soil Temperature, East Profile(tsoil_E)
• Volumetric Water Content, West Profile(watcont_W)

SGP/SWATS/E1 - Sensor failure, 85cm W

The 85-west sensor failed and began reporting missing values (-9999) with intermittent 
incorrect values.

Instrument removed from service 20091014.

• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, West Profile(tsoil_W)

SGP/SWATS/E5 - Sensor failure, 25cm E

The 25-cm East sensor began reporting missing values (-9999) after 0130 GMT, with 
intermittent incorrect values.  All data from this sensor are missing or incorrect. 

Instrument removed from service 20091102.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Temperature, East Profile(tsoil_E)

SGP/SWATS/E1 - Sensor failure, 25cm E

The soil sensor at the 25-cm depth on the East profile began reporting missing or 
incorrect values for all soil moisture measurements (trise, tsoil, soilwatpot, watcont).

Instrument removed from service 20091014.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E24 - Sensor Failure

The soil sensor at the 125-cm depth on the West side failed and is no longer reporting 
correct soil moisture data (trise_W, soilwatpot_W, watcont_W). Temperature data are still 
good.

• Volumetric Water Content, West Profile(watcont_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Sensor Temperature Rise, West Profile(trise_W)

SGP/SWATS/E9 - Incorrect reference temperature

The reference temperature was incorrect resulting in incorrect results for soil moisture 
measurements.

• Volumetric Water Content, East Profile(watcont_E)
• tref
• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Sensor Temperature Rise, West Profile(trise_W)

SGP/SWATS/E12 - Incorrect soil moisture

Temperature rise values were way to high (~40 deg C).  Water potential is calculated from 
a rise (and subsequent drop) in temperature in the sensor that is normally ~1-5 degrees 
C.  When the temperature rise is too high, the soil moisture data is dubious at best and 
unusable at worst.  Since this "out-of-bounds" t_rise is so high, the soil moisture data 
are practically unusable.

Soil temperature measurements were not affected.

• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Volumetric Water Content, West Profile(watcont_W)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E10 - Incorrect soil moisture

All temperature rise values were incorrect.  Soil moisture variables were also incorrect 
due to the incorrect T-rise values.  Soil temperature measurements were not affected.

• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E5 - Incorrect soil moisture data

The temperature rise values were too high (> 20 deg C).  Water potential is calculated 
from a rise (and subsequent drop) in temperature in the sensor that is normally ~1-5 degrees 
C.  When the T_rise is too high, the soil moisture data is dubious at best and unusable 
at worst.

Soil temperatures are OK.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E24 - Questionable Data due to placement of instrument

The Cyril EF is located on a gypsum outcropping overlooking a wheat field.  When the SWATS 
was installed, it was placed in a "hole" in the gypsum filled with soil.  The IM does 
not believe that this is conducive to collection of data that would be representative of 
local soil moisture conditions due to this arrangement.

While the soil temperature and moisture data are correct for the conditions in that spot, 
it is very likely that the gypsum surroundings create an environment that would be unlike 
the surrounding area, and should be aware that the data may not be representative of 
actual mean local conditions.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Temperature, East Profile(tsoil_E)
• Soil Temperature, West Profile(tsoil_W)

SGP/SWATS/E12 - Reprocess: Incorrect calibrations

Incorrect data configuration program was loaded on logger resulting in incorrect 
coefficients applied.  Data will be reprocessed with correct coefficients.

• tref
• Soil Temperature, West Profile(tsoil_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Volumetric Water Content, West Profile(watcont_W)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E3 - Sensor failure, 60cm E

The temperature rise readings from the 60-cm depth on the east profile (trise_E) were 
incorrect.  This problem also causes the matric potential (soilwatpot_E) and water content 
(watcont_E) data for the 60-cm depth to be incorrect.  The sensor began to behave 
erratically at 7:00 GMT on 07/10/2008 before an apparent failure at 10:00 GMT on 08/07/2008.  
Maintenance on 10/29 corrected the problem.

Values of tsoil_E at the 60 cm depth are not impacted by this problem.

• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E6 - Sensor failure, 15-cm W

All variables from the 15-cm depth on the west profile are reporting as -9999.  Sensor has 
failed.

• Soil Temperature, West Profile(tsoil_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, West Profile(watcont_W)

SGP/SWATS/E6 - Sensor failure, 175cm E

All variables from the 175-cm depth on the east profile are reporting as -9999. Sensor has 
failed.

• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E1 - Sensor failure, 5cm E

Both trise and tsoil for the 5cm E sensor began to drop out intermittently reporting both 
incorrect values and values of -9999 starting on 08/18/2007.  Since this date, there have 
been periods where values of -9999 have been reported continuously for months at a time, 
but the sensor always seems to come back eventually and report values that appear 
correct.  

Currently, this sensor is reporting normal values again but has failed as recently as 
10/08/08.  When this sensor is failing, it typically impacts tsoil_E, trise_E, soilwatpot_E, 
and watcont_E.  However, there are cases where tsoil_E appears OK while the other 
variables are incorrect.

Instrument was removed from service 20091014.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E7 - Sensor failure, 35cm E

The 35-cm East sensor had several problems before failing permanently in 2007:

20061208.2000-20070306.2000: temperature rise reported values of -9999, and soil 
temperature reported abnormally high temperature values.  

20070813.1200-20070912.1300: all variables reported as -9999, including soil temperature.  
A very small number of soil temperature values were reported as unusually high 
temperature values after 09/10/07.

20070912.1300-20070915.1600:  incorrect values of temperature rise reported (near 0 C), 
and soil temperature values incorrect and unusually high.

20071110.0000-20071115.2300:  incorrect values of temperature rise reported near 0 C or 
unusually low.  Values of soil temperature OK.  

20071128.0000-->:  Except for two very brief recoveries (on the order of a few days), all 
35cm E variables are reported as -9999.

• Sensor temperature rise, east profile(trise_e)
• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• Soil temperature, east profile(tsoil_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)

SGP/SWATS/E8 - Sensor failure, 35cm W

The sensor installed at 35 cm at the west profile has produced questionable data ince it 
was installed back in 1996.  Once the sensor began to stabilize at 17:00 GMT on 07/20/99, 
it has produced questionable or incorrect values of temperature rise.  From 07/20/99 to 
the present date, 35cm W temperature rise values have stayed within a range of 
approximately 0.8-2.0 C, while the sensor from the 35cm E profile has produced an approximate range 
of 1.5-4.0 C.

In addition, the calibration for this sensor is so bad it is not possible to correct it 
using field data.  The range of temperature rise values produced by this sensor is too 
limited to reliably re-calibrate the instrument.  Under the old ARM calibration for SWATS, 
the calibrated reference temperature change should fall within a range of 1.45-4.00 C (the 
new range is 1.38-3.96 C).  For this sensor, the reference temperature change has fallen 
within an approximate range of 0.2-1.7 C and the calibration is actually adjusting the 
trise measurements in the wrong direction.  

Therefore, all temperature rise, matric potential and water content data 
are all highly suspect from the 35cm W sensor.

The soil temperature data appear to be OK.

Instrument removed from service 20091110.

• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E20 - Sensor failure, 5cm E

The temperature rise readings from the 5-cm depth on the east profile are incorrect. This 
also causes the matric potential and water content data for the 5-cm depth to be 
incorrect. The soil temperature measurements were not affected.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E4 - Sensor failure, 5cm E

All variables from the 5cm depth on the east profile are reporting as -9999.  Sensor has 
failed.

• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E10 - Sensor failure, 15cm W

All variables from the 15cm West sensor are reported as missing. The sensor has failed.

• Sensor Temperature Rise, West Profile(trise_W)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, West Profile(tsoil_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E10 - Sensor failure, 15cm E

The 15cm E sensor failed at 7:00 GMT on 06/02/2002. Values of temperature rise from this 
sensor often do not fail automated QC tests, but inspection of the time series reveals 
that the values are incorrect. Since 2002, this sensor has alternated between providing 
temperature rise values near 0 C, equal to -9999, or other obviously incorrect values. 

Soil temperature data are not affected.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E15 - Sensor failure, 5cm E

The 5 cm sensor installed in the east profile failed on 01/06/2006 at 23:00 GMT.

• Soil water potential, east profile(soilwatpot_e)
• Soil temperature, east profile(tsoil_e)
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, east profile(watcont_e)

SGP/SWATS/E15 - Incorrect soil moisture

At 20:00 GMT on 05/07/08, temperature rise data from ALL sensors on both profiles began 
reporting values of temperature change near 0 C. These incorrect values of temperature rise 
result in incorrect soil moisture data for all sensors. 

Soil temperature data are unaffected.

• Soil Water Potential, West Profile(soilwatpot_W)
• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)

SGP/SWATS/E1 - Sensor failure, 85cm E

Both trise and tsoil for the 85cm E sensor dropped out reporting values of -9999 starting 
on 08/24/2005.  Interestingly, both this sensor and the one at 85 cm W (D040730.1) began 
to report data again June-August 2006.  Both sensors have reported values of -9999 after 
this brief period through the current date.  This problem impacts tsoil_E, trise_E, 
soilwatpot_E, and watcont_E. 

Instrument was removed from service 20091014.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E5 - Sensor failure, 5cm E

The temperature rise on 5cm E profile are incorrect (> MAX QC test) beginning 20070623. 
This also causes the matric potential and water content data to be incorrect.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E5 - Sensor failure, 15cm W

Both the temperature rise and soil temperature for the 15-cm W profile began to 
intermittently report as -9999 on 04/08/08. The intermittent drop outs continued until 9:00 GMT on 
04/20/08 after which all data are reported as -9999 through the current date. This 
problem also impacts the matric potential and water content data.

Instrument removed from service 20091102.

• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, West Profile(tsoil_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E5 - Sensor failure, 125cm W

Both the temperature rise and soil temperature measures of the 125-cm W profile are 
reported as -9999 since 10/07/99. This sensor has been essentially dead since then, and all 
associated variables are impacted. 

Instrument removed from service 20091102.

• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, West Profile(tsoil_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E5 - Sensor failure, 175cm W

The temperature rise of the 175cm W profile began reporting as incorrect with values near 
0 C on 20010817. This also causes the matric potential and water content data to be 
incorrect.

Soil temperature data are not affected.

Instrument removed from service 20091102.

• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E5 - Sensor failure, 175cm E

The temperature rise of the 175-cm East profile began reporting as incorrect with values 
near 0 C. This also caused the matric potential and water content data to be incorrect.

On 10/28/08, a broken wire was fixed and data came back online.

Soil temperature data was unaffected.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E7 - Soil temperature irregular, 125cm E

The 125 cm E sensor was demonstrating temporal irregularities in its soil temperature 
measurements.  These irregularities consisted of dips and increases of around 2-4 C that 
typically started around 14:00 or 15:00 GMT on most days. On other days the values appeared 
somewhat noisy throughout the day. In both cases, the temporal changes did not compare 
well with the other sensors installed at E7.  

A bad fiber optic cable was replaced.

• Soil Temperature, East Profile(tsoil_E)

SGP/SWATS/E10 - Soil temperature irregular, 25cm W

The 25 cm W sensor was demonstrating temporal irregularities and were noisy at times.  
These irregularities consisted of dips and increases of around 2-4 C that typically started 
around 14:00 or 15:00 GMT on most days. On other days the values appeared somewhat noisy 
throughout the day. In both cases, the temporal changes did not compare well with the 
other sensors installed at E10.

A broken wire was repaired for 25cm W sensor.

• Soil Temperature, West Profile(tsoil_W)

SGP/SWATS/E1 - Sensor failure, 15cm W

Both trise and tsoil for the 15cm W sensor began to drop out intermittently reporting both 
incorrect values and values of -9999 starting on 05/29/2008.  Currently, this sensor is 
reporting mainly values of -9999 for all measurements with a few random incorrect values 
from time to time.  This problem impacts tsoil_W, trise_W, soilwatpot_W, and watcont_W.

Instrument removed from service 20091014.

• Sensor Temperature Rise, West Profile(trise_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, West Profile(tsoil_W)

SGP/SWATS/E5 - Sensor failure, 5cm E

Beginning 07/08/2007, the 5-cm East profile sensor is reporting -9999 for all variables.

Instrument removed from service 20091102.

• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Soil Temperature, East Profile(tsoil_E)

SGP/SWATS/E20 - Sensor failure, 15cm E

The temperature rise readings from the 15-cm depth on the east profile were incorrect (0 
or -9999) This also caused the matric potential and water content data for the 15-cm depth 
to be incorrect.

Soil temperature data measurements also failed 20060502.  No data from this sensor should 
be used at or beyond this date.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E20 - Sensor failures

Following a period of missing values (-9999) from 08/05/05-08/17/05, sensors at several 
depths failed.

Temperature rise values from the 60cm West and 85cm East profile sensors were very noisy 
after 08/17/05. These data, including matric potential and water content, were incorrect.

Temperature rise values from the 85cm West and 125cm East profile sensors are reported as 
0 after 08/17/05. Matric potential and water content data for these sensor were also 
incorrect.  Soil temperatures for these depths were unaffected.

Temperature rise and soil temperature measurements for the 60cm East and 125cm West 
profile sensors were reported as 0 or -9999 after 08/17/05. Matric potential and water content 
data for these sensors were also incorrect.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Temperature, West Profile(tsoil_W)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E20 - Incorrect soil moisture data

After 12/20/2007, temperature rise values for all sensors (still operational at the time) 
were much too high, on the order of 10's of degrees C. Matric potential and water content 
data for these sensors were also incorrect.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E1 - Instrument failure

The diurnal temperature change in the tsoil measurements from all sensors installed below 
5 cm at this facility appear questionable.  On a daily basis, the diurnal trends in the 
tsoil measurements from depths below 5 cm did not match the above ground tref measurements 
or the tsoil measurements from the 5 cm W sensor (the 5 cm E sensor has failed). The 
tsoil measurements from these deeper sensors began to decrease prior to solar noon nearly 
every day. Also, the magnitudes of the diurnal change in these instruments appear to be the 
same for all sensors (Normally, the diurnal changes in tsoil are damped as we progress 
deeper below the surface).  

Attempts to correct the problem were unsuccessful until the time of site decommissioning.  
This facility was decommissioned and maintenance efforts ceased 10/1/2009.

• Soil Temperature, East Profile(tsoil_E)
• Soil Temperature, West Profile(tsoil_W)

SGP/SWATS/E3 - Incorrect temperature rise data

The temperature rise readings from all depths on both the east and west profiles were 
incorrect, reading near zero. This also causes the matric potential and water content data to 
be incorrect.

• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, West Profile(tsoil_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Temperature, East Profile(tsoil_E)
• Soil Water Potential, East Profile(soilwatpot_E)
• tref
• time_offset
• Sensor Temperature Rise, West Profile(trise_W)

SGP/SWATS/E11 - Incorrect soil moisture, 60cm E

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.

• tref

SGP/SWATS/E8 - Sensor failure, 60cm W

At 2:00 GMT on 07/30 all measurements from the 60 cm W sensor began reporting as -9999. 
The sensor has failed. 

This EF site is scheduled to be decommissioned in the near future.

Instrument removed from service 20091110.

• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Temperature, West Profile(tsoil_W)
• Soil Water Potential, West Profile(soilwatpot_W)

SGP/SWATS/E13 - Lightning damage

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.

There are no soil moisture data available during this time period.

• Soil Water Potential, West Profile(soilwatpot_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, West Profile(watcont_W)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Water Potential, East Profile(soilwatpot_E)

SGP/SWATS/E15 - Missing data

Data are missing and unrecoverable.

• serial_numbers_E
• Soil Water Potential, East Profile(soilwatpot_E)
• time_offset
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, East Profile(trise_E)
• depth
• Soil Temperature, West Profile(tsoil_W)
• North latitude(lat)
• base_time
• Altitude above mean sea level(alt)
• tref
• Soil Water Potential, West Profile(soilwatpot_W)
• serial_numbers_W
• East longitude(lon)
• Soil Temperature, East Profile(tsoil_E)
• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)

SGP/SWATS/E20 - Sensor failure, 25cm E

The East 25 cm sensor t-rise values dropped to zero on 7/11. The t-rise values came back 
up on 7/22 0200 GMT, but again were missing from 7/25 1600 GMT through 7/27 1700 GMT.  Ops 
reseated connection.

• Soil Water Potential, East Profile(soilwatpot_E)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, East Profile(tsoil_E)
• Sensor Temperature Rise, East Profile(trise_E)

SGP/SWATS/E4 - Sensor failure, 85cm E

The East 85 cm sensor began producing missing values. Wiring connections were checked and 
reseated. Sensor has apparently failed.

• Sensor temperature rise, east profile(trise_e)
• Soil water potential, east profile(soilwatpot_e)
• Soil temperature, east profile(tsoil_e)
• Volumetric water content, east profile(watcont_e)

SGP/SWATS/E15 - Noisy East 25cm sensor data

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.

• fwi_e
• Soil water potential, east profile(soilwatpot_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, east profile(watcont_e)

SGP/SWATS/E13 - Sensor failure from loose connections

All data for the 35 cm West sensor is missing for this time range.

• Volumetric water content, west profile(watcont_w)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, west profile(tsoil_w)
• Soil water potential, west profile(soilwatpot_w)
• fwi_w

SGP/SWATS/E38 -  Fractional Water Index above Normal Limit

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.

• Volumetric water content, west profile(watcont_w)
• Sensor temperature rise, east profile(trise_e)
• fwi_e
• fwi_w
• Soil water potential, east profile(soilwatpot_e)
• tref
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, east profile(tsoil_e)
• Soil temperature, west profile(tsoil_w)
• Soil water potential, west profile(soilwatpot_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Volumetric water content, east profile(watcont_e)

SGP/SWATS/E37 - 85 cm E Values Suspect

The 85 cm E values are suspect.

• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)
• serial_numbers_e
• Soil temperature, east profile(tsoil_e)
• Sensor temperature rise, east profile(trise_e)

SGP/SWATS/E36 - Several Depths of Measurements Suspect

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

• serial_numbers_w
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, east profile(trise_e)
• fwi_e
• Soil temperature, east profile(tsoil_e)
• serial_numbers_e
• Soil water potential, west profile(soilwatpot_w)
• fwi_w
• Volumetric water content, east profile(watcont_e)
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, west profile(tsoil_w)
• tref
• Reference sensor temperature rise, east profile(trise_ref_e)

SGP/SWATS/E36 - 15 cm E Measurements Suspect

The 15 cm E measurements are suspect because of probe failure.

• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Sensor temperature rise, east profile(trise_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Soil temperature, east profile(tsoil_e)

SGP/SWATS/E35 - Measurements at Several Depths Are Suspect

Measurements at several depths are suspect because of probe failures: 35cm W, 60cm W, 60cm 
E, 85cm W, 85cm E

• fwi_e
• Sensor temperature rise, west profile(trise_w)
• fwi_w
• Soil temperature, east profile(tsoil_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Soil temperature, west profile(tsoil_w)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)

SGP/SWATS/E34 - Measurements at Several Depths Are Suspect

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

• Volumetric water content, east profile(watcont_e)
• fwi_w
• Sensor temperature rise, east profile(trise_e)
• fwi_e
• Soil water potential, east profile(soilwatpot_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil temperature, east profile(tsoil_e)
• Volumetric water content, west profile(watcont_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, west profile(trise_w)

SGP/SWATS/E33 - 5 cm E Measurements Suspect

5 cm E measurements are suspect because of a failed probe.

• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Soil water potential, east profile(soilwatpot_e)
• Soil temperature, east profile(tsoil_e)
• Sensor temperature rise, east profile(trise_e)

SGP/SWATS/E33 - Measurements at Several Depths Are Suspect

Measurements at several depths are suspect because of probe failures:

5cm E
15cm E
35cm E
85cm E
125cm E
125cm W
175cm W

• Soil temperature, west profile(tsoil_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Soil water potential, west profile(soilwatpot_w)
• Sensor temperature rise, west profile(trise_w)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil water potential, east profile(soilwatpot_e)
• Soil temperature, east profile(tsoil_e)
• fwi_w
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, west profile(watcont_w)

SGP/SWATS/E11 - 35 cm E sensor Inconsistent with 35 cm W

The 35 cm E sensor seems to report incongruent temperature rise, fractional water index, 
and soil water potential values.

• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Soil water potential, east profile(soilwatpot_e)

SGP/SWATS/E11 - Depth 125 and 175 Soil Measurements Suspect

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.

• Sensor temperature rise, east profile(trise_e)
• Sensor temperature rise, west profile(trise_w)
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Volumetric water content, west profile(watcont_w)
• fwi_w
• Soil water potential, east profile(soilwatpot_e)
• Soil water potential, west profile(soilwatpot_w)

SGP/SWATS/E12 - Soil Measurements Suspect

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.

• Soil water potential, west profile(soilwatpot_w)
• Sensor temperature rise, west profile(trise_w)
• fwi_e
• fwi_w
• Soil water potential, east profile(soilwatpot_e)
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, east profile(watcont_e)
• Volumetric water content, west profile(watcont_w)

SGP/SWATS/E12 - Measurements Suspect

15 cm E trise values are too low and thus resulting measurements are also suspect.

• fwi_e
• Soil water potential, east profile(soilwatpot_e)
• Sensor temperature rise, east profile(trise_e)
• Volumetric water content, east profile(watcont_e)

SGP ALL INSTRUMENTS - Icing Event

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.

• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil water potential, west profile(soilwatpot_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Sensor temperature rise, east profile(trise_e)
• tref
• depth
• fwi_w
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, west profile(trise_w)
• serial_numbers_e
• Volumetric water content, east profile(watcont_e)
• fwi_e
• Soil temperature, east profile(tsoil_e)
• serial_numbers_w
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)

• fwi_w
• Reference sensor temperature rise, west profile(trise_ref_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, east profile(trise_e)
• tref
• Soil temperature, east profile(tsoil_e)
• serial_numbers_w
• Soil water potential, west profile(soilwatpot_w)
• serial_numbers_e
• depth
• fwi_e
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• Sensor temperature rise, west profile(trise_w)

• Reference sensor temperature rise, west profile(trise_ref_w)
• depth
• serial_numbers_e
• Sensor temperature rise, east profile(trise_e)
• Sensor temperature rise, west profile(trise_w)
• serial_numbers_w
• Volumetric water content, east profile(watcont_e)
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• fwi_e
• Soil temperature, east profile(tsoil_e)
• Soil water potential, west profile(soilwatpot_w)
• fwi_w
• Soil temperature, west profile(tsoil_w)
• tref
• Reference sensor temperature rise, east profile(trise_ref_e)

• fwi_w
• depth
• serial_numbers_w
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• fwi_e
• serial_numbers_e
• Volumetric water content, east profile(watcont_e)
• tref
• Reference sensor temperature rise, east profile(trise_ref_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, east profile(trise_e)
• Soil temperature, east profile(tsoil_e)
• Soil water potential, west profile(soilwatpot_w)
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, west profile(tsoil_w)

• Soil temperature, west profile(tsoil_w)
• fwi_w
• Soil water potential, west profile(soilwatpot_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• depth
• Reference sensor temperature rise, west profile(trise_ref_w)
• tref
• serial_numbers_e
• Sensor temperature rise, east profile(trise_e)
• serial_numbers_w
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, east profile(tsoil_e)
• Volumetric water content, east profile(watcont_e)
• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• Volumetric water content, west profile(watcont_w)

• Volumetric water content, east profile(watcont_e)
• Sensor temperature rise, west profile(trise_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil temperature, west profile(tsoil_w)
• Volumetric water content, west profile(watcont_w)
• Soil temperature, east profile(tsoil_e)
• Soil water potential, east profile(soilwatpot_e)
• depth
• tref
• serial_numbers_e
• Reference sensor temperature rise, west profile(trise_ref_w)
• serial_numbers_w
• fwi_e
• Reference sensor temperature rise, east profile(trise_ref_e)
• fwi_w
• Sensor temperature rise, east profile(trise_e)

• serial_numbers_e
• serial_numbers_w
• Sensor temperature rise, west profile(trise_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• depth
• Soil temperature, east profile(tsoil_e)
• Volumetric water content, east profile(watcont_e)
• fwi_w
• Reference sensor temperature rise, east profile(trise_ref_e)
• fwi_e
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, east profile(trise_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• tref

• serial_numbers_e
• Soil temperature, west profile(tsoil_w)
• Soil temperature, east profile(tsoil_e)
• depth
• Sensor temperature rise, east profile(trise_e)
• fwi_e
• fwi_w
• serial_numbers_w
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• Sensor temperature rise, west profile(trise_w)
• tref
• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil water potential, east profile(soilwatpot_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Soil water potential, west profile(soilwatpot_w)

• Volumetric water content, west profile(watcont_w)
• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• fwi_w
• tref
• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil temperature, west profile(tsoil_w)
• Soil temperature, east profile(tsoil_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• depth
• Sensor temperature rise, west profile(trise_w)
• Sensor temperature rise, east profile(trise_e)
• serial_numbers_e
• Soil water potential, west profile(soilwatpot_w)
• Volumetric water content, east profile(watcont_e)
• serial_numbers_w

• Soil temperature, east profile(tsoil_e)
• tref
• fwi_e
• depth
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• Reference sensor temperature rise, east profile(trise_ref_e)
• serial_numbers_w
• serial_numbers_e
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, east profile(trise_e)
• fwi_w
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, west profile(tsoil_w)

• depth
• Volumetric water content, east profile(watcont_e)
• Volumetric water content, west profile(watcont_w)
• serial_numbers_e
• serial_numbers_w
• tref
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, east profile(tsoil_e)
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, east profile(trise_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• Reference sensor temperature rise, east profile(trise_ref_e)
• fwi_w

SGP Site Power Outage Due to Winter Storm

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.

• qc_trise_e
• base_time
• North latitude(lat)
• time
• Reference sensor temperature rise, west profile(trise_ref_w)
• qc_soilwatpot_e
• Altitude above mean sea level(alt)
• Reference sensor temperature rise, east profile(trise_ref_e)
• qc_trise_w
• qc_fwi_e
• qc_fwi_w
• qc_tsoil_e
• qc_watcont_e
• depth
• fwi_w
• qc_tsoil_w
• time_offset
• qc_soilwatpot_w
• fwi_e
• qc_watcont_w
• qc_trise_ref_e
• Soil water potential, west profile(soilwatpot_w)
• Sensor temperature rise, east profile(trise_e)
• tref
• qc_trise_ref_w
• qc_tref
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, west profile(trise_w)
• serial_numbers_e
• Volumetric water content, east profile(watcont_e)
• Soil temperature, east profile(tsoil_e)
• serial_numbers_w
• Soil water potential, east profile(soilwatpot_e)
• East longitude(lon)
• Volumetric water content, west profile(watcont_w)

• time_offset
• tref
• Soil temperature, east profile(tsoil_e)
• serial_numbers_w
• serial_numbers_e
• fwi_e
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• base_time
• East longitude(lon)
• fwi_w
• Reference sensor temperature rise, west profile(trise_ref_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Soil temperature, west profile(tsoil_w)
• North latitude(lat)
• Sensor temperature rise, east profile(trise_e)
• Soil water potential, west profile(soilwatpot_w)
• depth
• Soil water potential, east profile(soilwatpot_e)
• Altitude above mean sea level(alt)
• Sensor temperature rise, west profile(trise_w)
• time

• Reference sensor temperature rise, west profile(trise_ref_w)
• depth
• serial_numbers_e
• serial_numbers_w
• qc_trise_ref_w
• Volumetric water content, east profile(watcont_e)
• Soil water potential, east profile(soilwatpot_e)
• base_time
• Soil temperature, east profile(tsoil_e)
• qc_trise_w
• Soil water potential, west profile(soilwatpot_w)
• qc_fwi_w
• time
• qc_fwi_e
• qc_trise_e
• Soil temperature, west profile(tsoil_w)
• qc_watcont_w
• qc_watcont_e
• tref
• Reference sensor temperature rise, east profile(trise_ref_e)
• Altitude above mean sea level(alt)
• qc_tsoil_w
• Sensor temperature rise, east profile(trise_e)
• Sensor temperature rise, west profile(trise_w)
• qc_tsoil_e
• qc_trise_ref_e
• Volumetric water content, west profile(watcont_w)
• fwi_e
• North latitude(lat)
• qc_soilwatpot_w
• qc_tref
• qc_soilwatpot_e
• East longitude(lon)
• time_offset
• fwi_w

• time_offset
• qc_trise_ref_e
• qc_watcont_w
• qc_fwi_w
• depth
• qc_fwi_e
• tref
• qc_tref
• qc_watcont_e
• qc_tsoil_e
• North latitude(lat)
• qc_tsoil_w
• qc_trise_ref_w
• fwi_w
• time
• serial_numbers_w
• Soil water potential, east profile(soilwatpot_e)
• Volumetric water content, west profile(watcont_w)
• fwi_e
• serial_numbers_e
• Volumetric water content, east profile(watcont_e)
• East longitude(lon)
• qc_trise_w
• qc_trise_e
• Altitude above mean sea level(alt)
• base_time
• Reference sensor temperature rise, east profile(trise_ref_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Sensor temperature rise, east profile(trise_e)
• Soil temperature, east profile(tsoil_e)
• qc_soilwatpot_w
• Soil water potential, west profile(soilwatpot_w)
• qc_soilwatpot_e
• Soil temperature, west profile(tsoil_w)
• Sensor temperature rise, west profile(trise_w)

• Soil temperature, west profile(tsoil_w)
• qc_trise_w
• qc_tref
• fwi_w
• qc_trise_e
• time_offset
• time
• tref
• serial_numbers_e
• qc_trise_ref_e
• serial_numbers_w
• Volumetric water content, east profile(watcont_e)
• qc_trise_ref_w
• fwi_e
• Volumetric water content, west profile(watcont_w)
• North latitude(lat)
• qc_tsoil_w
• Soil water potential, west profile(soilwatpot_w)
• Altitude above mean sea level(alt)
• qc_tsoil_e
• East longitude(lon)
• Reference sensor temperature rise, east profile(trise_ref_e)
• depth
• Reference sensor temperature rise, west profile(trise_ref_w)
• qc_watcont_e
• qc_fwi_w
• qc_soilwatpot_w
• Sensor temperature rise, east profile(trise_e)
• qc_fwi_e
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, east profile(tsoil_e)
• base_time
• Soil water potential, east profile(soilwatpot_e)
• qc_soilwatpot_e
• qc_watcont_w

• Volumetric water content, east profile(watcont_e)
• Sensor temperature rise, west profile(trise_w)
• Soil water potential, west profile(soilwatpot_w)
• East longitude(lon)
• Volumetric water content, west profile(watcont_w)
• Soil water potential, east profile(soilwatpot_e)
• tref
• time
• serial_numbers_e
• serial_numbers_w
• Altitude above mean sea level(alt)
• Sensor temperature rise, east profile(trise_e)
• base_time
• North latitude(lat)
• Soil temperature, west profile(tsoil_w)
• Soil temperature, east profile(tsoil_e)
• depth
• Reference sensor temperature rise, west profile(trise_ref_w)
• fwi_e
• Reference sensor temperature rise, east profile(trise_ref_e)
• time_offset
• fwi_w

• serial_numbers_e
• serial_numbers_w
• time
• Sensor temperature rise, west profile(trise_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• depth
• Soil temperature, east profile(tsoil_e)
• fwi_w
• fwi_e
• Soil temperature, west profile(tsoil_w)
• base_time
• East longitude(lon)
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• time_offset
• Altitude above mean sea level(alt)
• Reference sensor temperature rise, east profile(trise_ref_e)
• North latitude(lat)
• Sensor temperature rise, east profile(trise_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• tref

• Soil water potential, east profile(soilwatpot_e)
• fwi_e
• East longitude(lon)
• fwi_w
• tref
• qc_trise_ref_w
• qc_trise_e
• Reference sensor temperature rise, west profile(trise_ref_w)
• North latitude(lat)
• qc_trise_w
• Altitude above mean sea level(alt)
• time_offset
• Sensor temperature rise, west profile(trise_w)
• qc_tsoil_e
• time
• Sensor temperature rise, east profile(trise_e)
• qc_tsoil_w
• Soil water potential, west profile(soilwatpot_w)
• base_time
• qc_tref
• qc_watcont_e
• Volumetric water content, west profile(watcont_w)
• Soil temperature, west profile(tsoil_w)
• Soil temperature, east profile(tsoil_e)
• qc_watcont_w
• qc_soilwatpot_e
• Reference sensor temperature rise, east profile(trise_ref_e)
• qc_fwi_w
• qc_fwi_e
• depth
• qc_soilwatpot_w
• serial_numbers_e
• qc_trise_ref_e
• Volumetric water content, east profile(watcont_e)
• serial_numbers_w

• qc_tsoil_e
• qc_fwi_e
• qc_soilwatpot_e
• fwi_e
• depth
• qc_fwi_w
• qc_tsoil_w
• Volumetric water content, west profile(watcont_w)
• Volumetric water content, east profile(watcont_e)
• qc_soilwatpot_w
• serial_numbers_w
• serial_numbers_e
• Sensor temperature rise, east profile(trise_e)
• Sensor temperature rise, west profile(trise_w)
• North latitude(lat)
• time
• Soil temperature, east profile(tsoil_e)
• tref
• qc_trise_ref_w
• qc_trise_ref_e
• East longitude(lon)
• base_time
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• qc_tref
• Reference sensor temperature rise, east profile(trise_ref_e)
• qc_watcont_e
• Reference sensor temperature rise, west profile(trise_ref_w)
• time_offset
• fwi_w
• qc_trise_e
• qc_watcont_w
• qc_trise_w
• Soil temperature, west profile(tsoil_w)
• Altitude above mean sea level(alt)

• depth
• serial_numbers_e
• serial_numbers_w
• tref
• time_offset
• East longitude(lon)
• Sensor temperature rise, west profile(trise_w)
• North latitude(lat)
• Sensor temperature rise, east profile(trise_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Volumetric water content, east profile(watcont_e)
• Altitude above mean sea level(alt)
• Volumetric water content, west profile(watcont_w)
• Soil temperature, east profile(tsoil_e)
• Soil temperature, west profile(tsoil_w)
• Soil water potential, west profile(soilwatpot_w)
• Soil water potential, east profile(soilwatpot_e)
• base_time
• fwi_e
• fwi_w
• time

SGP/SWATS/E38 -25 cm intermittent data

25 cm East and West profile data is often intermittent, particularly at night.

• Volumetric water content, west profile(watcont_w)
• Sensor temperature rise, east profile(trise_e)
• fwi_e
• fwi_w
• Soil water potential, east profile(soilwatpot_e)
• Sensor temperature rise, west profile(trise_w)
• Soil temperature, east profile(tsoil_e)
• Soil temperature, west profile(tsoil_w)
• Soil water potential, west profile(soilwatpot_w)
• Reference sensor temperature rise, east profile(trise_ref_e)
• Reference sensor temperature rise, west profile(trise_ref_w)
• Volumetric water content, east profile(watcont_e)