Fig. 6. Capillary pressures respond to the annual cycle of wet and dry seasons in the VZFS300N lysimeter at Hanford (solid lines), and in a periodic infiltration model with silty-sand soil properties (dashed lines). Data from Sisson et al. (2002) and online at http://vadose.pnl.gov (verified 3 June 2004). (1 mbar = 0.0001 MPa).