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  3. Incorrect measurement uncertainty reported for many soil water content locations

Data Notification

Incorrect measurement uncertainty reported for many soil water content locations

November 1, 2023

An error in many of the sensor calibration files means that the reported measurement uncertainty in the soil water content data product (DP1.00094.001) is lower than the actual measurement uncertainty for many locations. The reported uncertainty corresponds to soil-specific calibrations, but the sensors were using the manufacturer's default calibration, which has a larger uncertainty. The other reported parameters, such as mean soil water content during the averaging interval, are unaffected. The start date varies among sites, but typically affects data since mid-2021 to present, as well as all measurement levels (see table for details). Work has started to correct the calibration files, after which the data will be reprocessed and republished. An update to this issue will be provided within the next 2 months.

Please use the Contact Us form for further inquiries related to this issue; select DP1.00094.001 in the Data Product dropdown list and include the term "INC0069873".

Site ID Soil plots Approximate start date (YYYY-MM-DD)
ABBY All 2021-08-02
BART All 2021-08-01
BLAN All 2021-07-28
DCFS All 2021-09-06
DEJU All 2021-09-07
DELA 1, 2, 5 2021-11-02
GRSM All 2021-10-11
HARV All 2021-08-10
JERC 1, 3, 4, 5 2021-02-26
KONZ All 2021-01-21
LENO 1, 2, 4, 5 2021-10-26
MLBS 3, 4, 5 2021-09-29
MOAB All 2021-11-08
NIWO 1, 3, 4 2021-09-13
NOGP All 2021-08-30
OAES All 2021-08-21
ORNL 2, 3, 5 2021-09-23
RMNP 1, 2, 3, 4 2021-09-02
SERC All 2021-07-28
STEI All 2021-09-14
STER All 2021-08-22
TREE All 2021-08-31
UKFS All 2021-02-03
UNDE All 2021-08-25
WOOD All 2021-09-09
WREF All 2021-08-03
YELL 1, 2, 4, 5 2021-11-08

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