USGS Water Resources
Applying the Darcian Method

Ideally, the Darcian method for determination of point recharge rates utilizes accurately measured hydraulic conductivity (K) at the existing field water content on core samples from a deep unsaturated zone with constant, gravity-driven flow. The steps required are:

Uniform matric potential profile K curves

Critical issues that occur with proposed application in a new location:

Case Study Sites

National Research Program USGS Water Resources Unsaturated Zone Flow Project Home Page
For more information contact: UZ Flow Webmaster
Last modified: Fri Feb 24 09:09:27 PDT 2006