A change in perspective: downhole cosmic-ray neutron sensing for the estimation of soil moisture
Above-ground cosmic-ray neutron sensing (CRNS) allows for the non-invasive estimation of the field-scale soil moisture content in the upper decimetres of the soil. However, large parts of the deeper vadose zone remain outside of its observational window. Retrieving soil moisture information from the...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
22 August 2023
|
| In: |
Hydrology and earth system sciences discussions
Year: 2023, Volume: 27, Issue: 16, Pages: 3059-3082 |
| ISSN: | 1812-2116 |
| DOI: | 10.5194/hess-27-3059-2023 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.5194/hess-27-3059-2023 Verlag, lizenzpflichtig, Volltext: https://hess.copernicus.org/articles/27/3059/2023/ 
|
| Author Notes: | Daniel Rasche, Jannis Weimar, Martin Schrön, Markus Köhli, Markus Morgner, Andreas Güntner, and Theresa Blume |
| Summary: | Above-ground cosmic-ray neutron sensing (CRNS) allows for the non-invasive estimation of the field-scale soil moisture content in the upper decimetres of the soil. However, large parts of the deeper vadose zone remain outside of its observational window. Retrieving soil moisture information from these deeper layers requires extrapolation, modelling or other methods, all of which come with methodological challenges. Against this background, we investigate CRNS for downhole soil moisture measurements in deeper layers of the vadose zone. To render calibration with in situ soil moisture measurements unnecessary, we rescaled neutron intensities observed below the terrain surface with intensities measured above a waterbody. |
|---|---|
| Item Description: | Gesehen am 06.12.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1812-2116 |
| DOI: | 10.5194/hess-27-3059-2023 |