% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Jakobi:897239,
      author       = {Jakobi, J. and Huisman, J. A. and Köhli, M. and Rasche, D.
                      and Vereecken, H. and Bogena, H. R.},
      title        = {{T}he {F}ootprint {C}haracteristics of {C}osmic {R}ay
                      {T}hermal {N}eutrons},
      journal      = {Geophysical research letters},
      volume       = {48},
      number       = {15},
      issn         = {1944-8007},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2021-03701},
      pages        = {e2021GL094281},
      year         = {2021},
      abstract     = {The advance of the cosmic ray neutron (CRN) sensing method
                      for estimating field scale soil moisture relied largely on
                      simulations of the footprint properties of epithermal
                      neutrons (∼0.5 eV–100 keV). Commercially available CRN
                      probes are usually additionally equipped with a thermal
                      neutron (<0.5 eV) detector. The potential of these
                      measurements is rarely explored because relevant features of
                      thermal neutrons, such as the footprint and the sensitivity
                      to soil moisture are unknown. Here, we used neutron
                      transport modeling and a river crossing experiment to assess
                      the thermal neutron footprint. We found that the horizontal
                      thermal neutron footprint ranges between 43 and 48 m
                      distance from the probe and that the vertical footprint
                      extends to soil depths between 10 and 65 cm depending on
                      soil moisture. Furthermore, we derived weighting functions
                      that quantify the footprint characteristics of thermal
                      neutrons. These results will enable new applications of
                      thermal neutrons.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217) / DFG project 357874777 - FOR 2694: Large-Scale
                      and High-Resolution Mapping of Soil Moisture on Field and
                      Catchment Scales - Boosted by Cosmic-Ray Neutrons},
      pid          = {G:(DE-HGF)POF4-2173 / G:(GEPRIS)357874777},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000685110400002},
      doi          = {10.1029/2021GL094281},
      url          = {https://juser.fz-juelich.de/record/897239},
}