potentiometric map

potentiometric map

[pə¦ten·chē·ə¦me·trik ′map]
(hydrology)
A map showing the elevation of a potentiometric surface of an aquifer by means of contour lines or other symbols. Also known as pressure-surface map.
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The contribution of groundwater to these areas of flooding was investigated by developing a potentiometric map of 15 hectares within the natural area.