1. General Model Information

Name: Water flow through vadose zone

Acronym: FLOWEX1_1

Main medium: terrestrial
Main subject: hydrology, biogeochemistry
Organization level: ecosystem
Type of model: not specified
Main application:
Keywords: soil, water flow, soil profile, vadose zone, groundwaterlevel, draindischarge, transpiration, surface runoff


Mr. K. Oostindie
DLO Winand Staring Centre (SC-DLO)
P.O.Box 125
6700 AC Wageningen
Phone: +31.317.474273
Fax : +31.317.424812
email: k.oostindie@sc.agro.nl

Dr.ir. A.L.M. van Wijk
Address: DLO Winand Staring Centre (SC-DLO)
Soil physics and soil management division
P.O.Box 125, 6700
AC Wageningen
Phone: +31.317.474263
Fax : +31.317.424812
email: wijk@sc.agro.nl



Water flow can be simulated in a soil profile consisting of up to 5 horizons with different soil physical properties. To simulate water flow the profile is divided into compartments. For each compartment the model computes the incoming and outgoing fluxes, the pressure head and the water content. For the complete soil profile the model computes the groundwaterlevel, the draindischarge, the actual transpiration and the surface runoff.

Author of the abstract: CAMASE Register of Agro-ecosystems Models

II. Technical Information

II.1 Executables:

Operating System(s): VAX-VMS

II.2 Source-code:

Programming Language(s): FORTRAN-77

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

Tables describing the relation between pressure head, water content andhydraulic conductivities. Description of profile and top and bottom boundary conditions; description of soil physical data; climatic data. Water balance for the profile pressure heads and water contents for each

III.2.2 Output

Water balance for the profile pressure heads and water contents for eachunsaturated layer.

IV. References

Buitendijk, J., 1984.
FLOWEX: a numeriek model voor de simulatie van verticaal watertransportdoor de onverzadigde zone.
Nota Institute for Land and Water Management Research No. 1494 Wageningen:ICW. 61 pp.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele : 17. Sep 1997

Status of the document:
last modified by Joachim Benz Mon Jul 2 18:31:37 CEST 2007

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