potentiometric field

   As used in karst hydrology, a discontinuous highly irregular surface representing the static ground-water head as indicated by the level to which water rises in a selected piezometer. In some piezometers, the water-level rise will be greatly different from other piezometers (either higher or lower) or may be non-existent all together.

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

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