MKRDAT

Basic Information

Name of Program

MKRDAT

Version-Date

May 1997

Description-Date

December 2000

Catchwords

Preprocessor
Hydrodynamic numerical model TRIM-2D
Position dependant soil classification numbers

Short Description of Functionality

The program MKRDAT creates a file, which contains soil classification numbers for each u and v point of the TRIM-2D grid. To do this, the program needs the following input: First a TRIM-2D grid and second information about the position dependency of the soil classifications. The classification numbers can be set inside areas (discribed by a closed polygon i.e. structures INSEL or SAND) and optional pointwise.

Input-Files

1. General input data (filetype mkrdat.dat).
2. TRIM-2D-Bathymetry (filetype tr2.topo.bin.ind).
3. (optional) files(s) containing the polygons describing an area (type insel.dat).
4. (optional) point by point assignment of soil classification numbers (filetype gkpunkt.dat).

Output-Files

1. Distribution of soil classification numbers (filetype tr2.soil.bin.ind).
2. when test output is active: mkrdat.trc and file of type tr2.topo.bin with the classification numbers as TRIM-2D-topography file (enables visualization with TRGITTER05).

Methodology

Point by point assignment of soil classification numbers All points defined by the user in a file of type gkpunkt.dat must pass through the folling steps:

• Read the coordinates, the depth and the soil classification number
• Compute the grid indices of the associated model point
• Control the position of the model point (inside/outside of model area; wet/dry model point)
• Copy the soil classification number to the u and v edge of this model point

assignment of soil classification numbers by area

• The selected areas are searched by name in the given structure files. Only structures of type INSEL and SAND are accepted during the search.
• When an area is found it is processed. Therefor the order of the structure files and areas inside the input file is significant.
• The classification numbers are assigned then with respect to the criterions set by the user.
• The control criterions are: is the point inside/outside the area and deeper/lower than a depthlimit?.

All grid edges not touched by this assignment get the soil classification number 1.

Program(s) to run before this Program

-

Program(s) to run after this Program

TRGITTER05, TRIM-2D

Additional Information

Language

Fortran90

Additional software

-

Original Version

E.Rudolph

Maintenance

working group PRE

Documentation/Literature

$PROGHOME/examples/mkrdat/

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