water table

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water table

The upper limit of the saturated area of the earth containing groundwater.The water table will be at varying depths depending on location and time of year.

References in periodicals archive ?
The perched water table during the second storm occupied isolated areas with less connectivity to the stream, as indicated by areas of yellow (unsaturated) and green (saturated) intersecting the blue flow lines (fig.
The depth to the perched water table in the control and the raised beds was continuously monitored at Beverley and Woodanilling in 1998 and 1999.
The level of the perched water table in the raised beds, however, exceeded a depth of 0.
In 1997 at Cranbrook, transects of the perched water table were obtained at right angles to interceptor drains.
Where the pallid zone comes close to the surface and the first and second perched water tables merge, waterlogging problems are compounded.
These problems were exacerbated in those areas where there were also waterlogging problems caused by water originating from the two perched water tables.
This long duration of saturation coincides with the second restricting layer (the pallid zone or pallid soil subsystem), and the second perched water table, coming close to the surface (Fig.
The second perched water table, in the second hydromorphic subsystem on top of the pallid zone, shows a less sensitive, slightly delayed response, caused by the retarding effect on downward movement of water of the relatively impermeable mottled zone above it.
As a consequence, less water flowed down towards the top of the pallid zone, and the perched water table at about 3.