EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Heinen & Raats 1999
Heinen, M. and Raats, P.A.C. (1999). Unconventional flow of water from dry to wet caused by hysteresis: A numerical experiment. Water Resources Research 35: doi: 10.1029/1999WR900136. issn: 0043-1397.

We demonstrate with the help of a numerical simulation model for hysteretic water movement that for horizontal redistribution three types of flow can occur. Raats and Van Duijn <1995> previously identified these types as a reaction to a specific analysis by Philip <1991>. Depending on the initial conditions in two parts of an infinitely long soil column, there can be no flow, conventional flow from the wet part to the dry part, or unconventional flow from the dry part to the wet part. When flow occurs, the cumulative wetting and cumulative drying both show the expected linear relationship with the square root of time. Hysteresis is described according to the modified dependent domain model of Mualem <1984>. We also indicate that Kool and Parker <1987>, who used this model as well, presented a erroneous expression for the differential moisture capacity of the scanning drying curve. ¿ 1999 American Geophysical Union

BACKGROUND DATA FILES

Abstract

Keywords
Hydrology, Unsaturated zone, Hydrology, Soil moisture, Hydrology, General or miscellaneous
Journal
Water Resources Research
http://www.agu.org/wrr/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit