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A cone of depression is a circular area surrounding a well where groundwater levels are reduced from pumping. [ 1 ] [ 2 ] In an unconfined aquifer ( water table ), this is an actual depression of the water levels.
A cone of depression is caused due to heavy pumping in the area where the water table is located resulting in a large sunken area. In this ScienceStruck post, we shall take a look at what exactly a cone of depression is and how it is formed.
Definition. A cone of depression is a conical-shaped area surrounding a well where the water table has been lowered due to pumping. This phenomenon occurs when groundwater is extracted from an aquifer, leading to a decline in hydraulic pressure and creating a drawdown effect that manifests as a cone shape around the well.
A cone of depression is a conical-shaped decline in the water table surrounding a well, created when water is pumped from the aquifer faster than it can be replenished. This phenomenon occurs due to the difference in pressure caused by the extraction of groundwater, leading to a drop in the surrounding groundwater levels.
Cone of Depression. Pumping from a well in a water table aquifer lowers the water table near the well. This area is known as a cone of depression. The land area above a cone of depression is call the area of influence. Groundwater flows towards the well into the cone of depression which can change the natural direction of groundwater flow ...
On a more local scale, over-pumping can result in lowering of the water table in a process called “cone of depression,” a generally concentric pattern of water table drawdown. Such over-pumping often results from industry or agriculture, but individual landowners often feel the repercussions.
The cone of depression is a conical-shaped area around a well where the water table has been lowered due to the extraction of groundwater. This phenomenon occurs when water is pumped from a well faster than it can be replenished, creating a drop in water levels that radiates outward from the well.
The water surface boundary, described by an inverted cone, is known as the cone of depression, which theoretically extends outward from the well to the limits of the water-bearing bed.
The pattern of water table distortion is called the cone of depression, and the area over which the depression can be detected is called the zone of influence of the well. This zone of influence can easily have dimensions of a mile or more, depending on the characteristics of the aquifer.
Cones of depression are important for a couple of reasons. Because water flows down to lower points, the cone of depression could change the direction groundwater flows in.