D-R-A-F-T
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An alphanumeric set of information included in all TABS-MD binary output files
which describes the flow of data between GFGEN, RMA2, RMA4, and SED2D.
Base to Plan comparisons
The process of identifying differences in numerical model results between existing
conditions and revised conditions, usually a change in geometry.
Basis Function
The interpolation polynomial used to approximate the spatial distribution of the
solution over a portion of the model domain (element). Also called Shape function.
Batch mode
A quequeing procedure and computer specific job control language which permits
dedicated resources for a numerical simulation.
Bathymetry
The measurement of the depth of large bodies of water.
Bed load
Material moving on or near the stream bed by rolling, sliding, and sometimes making
brief excursions into the flow a few diameters above the bed
Bed material
The sediment mixture of which the bed is composed. In alluvial streams bed
material particles are likely to be moved at any moment or during some future flow
condition.
Bed Source Term
The form of the bed source term , S = α1C + α2, as given in Equation 1 is the same
for deposition and erosion of both sands and clays. Methods of computing the alpha
coefficients depend on the sediment type and whether erosion or deposition is
occurring.
Binary
A numbering system consisting of only the numerals 0 and 1.
The TABS-MD system uses some binary files. A binary file permits an efficient
means to store numerical results.
Binary files are dependent on the word length of the computer from which they were
created. They cannot be directly moved across computer platforms.
A TABS binary file is created by an unformatted FORTRAN WRITE statement.
Boundary Condition Buffering
In order to provide a form of memory of the concentration history under dynamic
tidal conditions a method termed "boundary condition buffering" was developed.
This technique assigns a finite (MBB parameter in the program include file) number
152 Glossary of Terms
Users Guide To SED2D-WES
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