pore water
Link: http://w3id.org/permafrost/v/ipaglossary/t0267
Within: IPA Permafrost Glossary
Definition: Water occurring in the pores of soils and rocks.
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pore water
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Pore water includes free water and interfacial (adsorbed) water. Free water is that portion of the pore water that is free to move between interconnected pores under the influence of gravity. The temperature at which free water will change phase depends primarily on its dissolved-solids content, which determines freezing-point depression. It should be noted that the term "free water" also covers water in fissures, solution channels and other openings in soils or rocks. Interfacial water forms transition layers at mineral/water and mineral/water/ice interfaces. The intermolecular forces involved are such that this water does not move under the influence of gravity. The temperature at which any portion of the interfacial water will change phase depends on the total energy of the various adsorption forces, which in turn depend on distance from the mineral surface, type of mineral and solute content of the water.
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https://doi.org/10.4224/20386561
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