PROGRAMS AND PLANS--Transport Modeling System Available on PR1ME

In Reply Refer To:                                January 29, 1988
WGS-Mail Stop 415




OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 88.04

Subject:  PROGRAMS AND PLANS--Transport Modeling System Available
                              on PR1ME

Over the past several years, a stream-transport modeling system
which can be used for practical applications has been developed.
The current version of the Branched Lagrangian Transport Model
(BLTM) is capable of simulating the transport of as many
constituents as you choose (using either the QUAL-II reaction
kinetics or reaction kinetics supplied by the user) in a system of
interconnected one-dimensional channels.

The flow can be supplied to the model from the BRANCH flow model
or from a user-supplied program.  A simple flow model (CCFLOW)
similar to the popular CONROUT model which also can be used to
drive the model currently is being documented.

During the last workshop on the BRANCH flow model, 12 hours of
instruction were given on the BLTM and CCFLOW.  During this 12
hours of class time, all students succeeded in applying the model
to simulate the transport of dye and "fish eggs" in a 17-mile
reach of the Chattahoochee River under highly unsteady flow
conditions.  Students in attendance were impressed with both the
accuracy and simplicity of the model.

Copies of the documentation of the BLTM can be obtained by
contacting Harvey Jobson (HEJOBSON@RVARES or FTS 959-5224).
Descriptions of the model use for specific cases can be found in
the ASCE Journal of Environmental Engineering (vol. 113, No. 2,
April 1987) and in Water Resources Research (vol. 23, no. 1,
January 1987).  A personal computer version of the model also is
available.

If you have any questions concerning the use of the model, please
feel free to call Harvey Jobson (FTS 959-5224).




                                    Verne R. Schneider
                                    Chief, Office of Surface Water

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