International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage



(1086) Water surface (groundwater)
The very irregular and integerated upper surface of the saturated zone in a porous media. This surface typically consists of many little surfaces that are concave upwards, each occupying an interstitial chamber that may be connected with its neighbour by a tiny start or walled off from it by a solid particle. Capillary forces typically cause this surface to be above the static water level in a well penetrating the media.

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