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Fluid Potential
exploring how water flows through sediment voids
Question | Answer |
---|---|
how do we observe fluid potential? | piezometer and monitoring well |
what is the hydraulic head formula? | h = elevation + pressure head |
what is hydraulic head? | hydraulic head at a point is the elevation of the top of the static water column above the point (relative to the datum) |
what is pressure head? | height of the water column above the point |
what is the elevation? | elevation of the point above the selected datum |
what is a piezometer? | device used to measure hydraulic (or piezometric) head at a point in a groundwater system |
what are the types of piezometers? most common? | • open standpipes • any type of well (most common) • drivepoints • pressure transducer (vibrating wire) |
what is a piezometer nest? | several piezometers at the same location but with their open ends at different elevations (depths) in the subsurface |