1. General Model Information

Name: FLOw in CRacking soils

Acronym: FLOCR2


Main medium: terrestrial+
Main subject: hydrology, biogeochemistry
Organization level: ecosystem
Type of model: compartment model, partial differential equations (1D)
Main application:
Keywords: soil, volume changes, vertical water transport, cracking clay soil, soil water content profiles, surface subsidence, crack volumes, preferential flow, drainage, 1D, richards equation, vertical cracks, bypass flow

Contact:

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

Author(s):

Oostindie, K. and J.J.B. Bronswijk
SC-DLO
P.O.Box 125
6700 AC Wageningen
The Netherlands

Abstract:

FLOCR simulates volume changes and vertical water transport in cracking clay soils. With the water retention curve and the hydraulic conductivity curve of the soil matrix and appropriate boundary conditions as input, soil water content profiles are computed, which are subsequently converted into surface subsidence and crack volumes, using the shrinkage characteristics of the soil matrix and a shrinkage-geometry factor. Preferential flow and rapid drainage via shrinkage cracks are computed as well.

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


II. Technical Information

II.1 Executables:

Operating System(s): VAX-VMS and PC/MS-DOS please contact Mr. K. Oostindie.

II.2 Source-code:

Programming Language(s): FORTRAN-77 please contact Mr. K. Oostindie.

II.3 Manuals:



II.4 Data:



III. Mathematical Information


III.1 Mathematics


III.2 Quantities

Rate variables: Water content, hydraulic conductivity, pressure head, volume change of eachlayer, runoff bypass flow and evapotranspiration.
State variables: Shrinkage characteristics; tables for the water retention curves and hydraulicconductivity curves.
Profile description and boundary conditions, soil physical data and climatic data.

III.2.1 Input

Profile description and boundary conditions, soil physical data and climatic data. Water balances for the profile subsidence, water content, pressure head for each soil layer.

III.2.2 Output

Water balances for the profile subsidence, water content, pressure head for each soil layer.

IV. References

Oostindie, K. & J.J.B. Bronswijk, 1992.
FLOCR - A simulation model for the calculation of water balance, cracking and surface subsidence of clay soils.
DLO-Winand Staring Centre Report no. 47. Wageningen, The Netherlands, 65 pp.

V. Further information in the World-Wide-Web


VI. Additional remarks


Last review of this document by: T. Gabele: 17. 9. 1997
Status of the document:
last modified by Joachim Benz Mon Jul 2 18:31:37 CEST 2007

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