A potentiometric surface is the imaginary plane where a given reservoir of fluid will "equalize out to" if allowed to flow. A potentiometric surface is based on hydraulic principles. For example, two connected storage tanks with one full and one empty will gradually fill/drain to the same level. This is because of atmospheric pressure and gravity. This idea is heavily used in city water supplies - a tall water tower containing the water supply has a great enough potentiometric surface to provide flowing water at a decent pressure to the houses it supplies.

For groundwater "potentiometric surface" is a synonym of "piezometric surface" which is an imaginary surface that defines the level to which water in a confined aquifer would rise were it completely pierced with wells.[1] If the potentiometric surface lies above the ground surface, a flowing artesian well results. Contour maps and profiles of the potentiometric surface can be prepared from the well data.

See also

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References

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  • Earth: Portrait of a Planet; Second edition; Stephen Marshak, 2005 W.W. Norton & Company, Inc (Page 604–605)
  1. ^ Younger, Paul (2007). Groundwater in the Environment. Oxford, UK: Blackwell Publishing Ltd. ISBN 978-1-4051-2143-9.


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Water table

upon the pressure in the deeper aquifer and is referred to as the potentiometric surface, not the water table. The water table may vary due to seasonal changes

Aquifer

groundwater where the aquifer is near the surface. Groundwater flow directions can be determined from potentiometric surface maps of water levels in wells and

Glossary of geography terms (N–Z)

regimes that affect and are affected by river discharge. potentiometric surface See piezometric surface. pothole 1.  Any smooth, bowl-shaped or cylindrical

Well cluster

The pressure difference between the groundwater table and the potentiometric surface in a submerged well can. A shallow well is used to measure the water

Aquifer test

wells or long term changes in regional water levels (all changes in potentiometric surface are the result of the pumping well alone) Even though these assumptions

Cyclic voltammetry

molecule that is adsorbed onto the electrode and to quantify electrochemical surface area of catalysts in electrochemical cells. In cyclic voltammetry (CV)

Potentiometer

wiper as it is rotated. In volume control use this causes crackling. Potentiometric sensor Trimmer Motorized potentiometer The Authoritative Dictionary

Voltage-sensitive dye

Voltage-sensitive dyes, also known as potentiometric dyes, are dyes that change their spectral properties in response to voltage changes. They are able