Back to Input Deck Cards

# DBASE_FILENAME¶

Allows the user to define input parameters through an external database stored in an ASCII text or HDF5 file. These parameters can be realization dependent where an array of values is provided and indexed by the realization id.

## Required Cards:¶

DBASE_FILENAME <string>
Indicates the path/filename of the external database to be employed.
DBASE_VALUE <string>
Indicates the name of the parameter to be read from the database file. This card combination may be entered anywhere a double precision value is read from the input file. See examples below:

## Examples¶

DBASE_FILENAME 543_dbase.h5
...
MATERIAL_PROPERTY soil1
...
POROSITY DBASE_VALUE POROSITY::SOIL1
END
MATERIAL_PROPERTY soil4
...
PERM_X DBASE_VALUE PERMEABILITY_X::SOIL4
END
...
CHARACTERISTIC_CURVES sf3
...
ALPHA DBASE_VALUE ALPHA-sf3
END
...
REGION north
FACE NORTH
COORDINATES
0.d0 46.d0 0.d0
60.d0 46.d0 DBASE_VALUE NORTH_MAX_Z
/
END
...
CONSTRAINT river_water
CONCENTRATIONS
Tracer   1.e-3                        F
Tracer2  DBASE_VALUE RIVER_TRACER2    F
/
END


In the above example, values for POROSITY, PERM_X, ALPHA, the Z coordinate, and Tracer2 concentration are assigned based on the database stored in 543_dbase.h5 and the command line argument -realization_id 5 (note the zero-based index of 4 in the HDF5 file is actually the 5th realization). An example script for creating the database file may be found in PFLOTRAN_DIR/src/python/dbase_creator.py. The figure below shows a snapshot of what the file 543_dbase.h5 looks like using the program hdfview.