Channels and Groundwater: The Hydraulic Connection

by Herman Bouwer, US Water Conservation Lab, Phoenix, AZ, USA,

Document Type: Proceeding Paper

Part of: Development and Management Aspects of Irrigation and Drainage Systems


Hydraulic connection between surface and groundwater implies that surface water can seep into the ground (transmission losses from open channels, for example) and eventually become or join groundwater, or vice versa. There are, however, two different types of hydraulic connection. In one type, the groundwater level has an effect on the seepage rate (active hydraulic connection), while in the other it does not (passive hydraulic connection). Various flow systems will be analyzed and relations between transmission losses, soil hydraulic conductivity, groundwater table depth, and system geometry will be presented.

Subject Headings: Groundwater | Hydraulics | Water resources | System analysis | Soil analysis | Water table | Hydraulic conductivity | Channel flow

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