Soil Moisture Neutron Probe Data (FIFE)

The neutron-probe data present a series of measurements of volumetric water content in the soil profile compiled using the neutron method. These data were collected from throughout the FIFE study area from May 1987 through August 1989. The neutron method of measuring soil water content uses the principle of neutron thermalization. When both hydrogen and oxygen are considered, water has a marked effect on slowing or thermalizing neutrons. Thermal neutron density is easily measured with a detector, if the capture cross-section remains constant then the thermal neutron density may be calibrated against water concentration on a volume basis.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated March 30, 2026, 23:58 (UTC)
Created April 1, 2025, 19:07 (UTC)
accessLevel public
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/111
license https://www.usa.gov/government-works
modified 2026-03-23T22:16:03Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
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source_hash 93bd32643e072efb8e198805f10390e89efe4823ad97887d7bd504508f5b9007
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spatial [[{"WestBoundingCoordinate":-96.61,"NorthBoundingCoordinate":39.12,"EastBoundingCoordinate":-96.45,"SouthBoundingCoordinate":38.98}],"CARTESIAN"]
temporal 1987-05-28/1989-08-10
theme {"Earth Science"}