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Electrical Resistivity Used to Estimate Unfrozen Water Content
Author(s) -
John Doe
Publication year - 2019
Publication title -
csa news
Language(s) - English
Resource type - Journals
eISSN - 2325-3584
pISSN - 1529-9163
DOI - 10.2134/csa2019.64.s065
Subject(s) - electrical resistivity and conductivity , water content , materials science , content (measure theory) , environmental science , soil science , composite material , geology , geotechnical engineering , electrical engineering , mathematics , engineering , mathematical analysis
Permafrost and seasonally frozen ground cover vast regions of our planet and influence infrastructure integrity, slope stability, greenhouse gas release, and hydrologic function. Monitoring changes in ground temperature and/or the amount of unfrozen water present and help manage potential risk to our planet. Electrical resistivity tomography (ERT) is a geophysical method used to image subsurface resistivity over a range of spatial and temporal scales. Resistivity is closely related to subzero temperature and unfrozen water content, but the exact nature of this relationship is not well understood.