4 DMS-Analytical Toolbox 



This chapter describes the DMS-Analytical Toolbox, presently under 

 development. Included is a discussion on the contents of the toolbox and its use. 

 The chapter presents the application of this DMS component to navigation 

 channel shoaling at East Pass Inlet. 



Analytical Toolbox Description 



This component of the DMS consists of a suite of analytical tools for 

 conducting more detailed analyses of channel shoaling. The toolbox is expected 

 to contain various utilities ranging in complexity from simple calculations for 

 determining fetch-limited wave heights to two-dimensional, finite-element, 

 hydrodynamic flow models. These tools will access the data contained in the 

 DMS-Data Manager as input. As such, the development of the Data Manager 

 contains provisions to output information in the appropriate format compatible 

 with these tools. 



Toolbox contents 



The following lists examples of anticipated contents of the toolbox. The 

 label "calculator" indicates that the utility will access the output from one of the 

 other tools to generate new information. Some of the programs were in the 

 process of interface development at the time this case study was conducted. 



• ADCIRC. The ADCIRC (Luettich, Westerink, and Scheffher 1992) 

 system of computer programs solves time-dependent, free-surface 

 circulation, and transport processes in two and three dimensions. The 

 finite element model is based on the wave-continuity formulation of the 

 shallow-water equations. 



• SMS. The Surface Water Modeling System (SMS) interface is a pre- 

 and post-processor for ADCIRC (as well as other finite-element 

 numerical models). SMS is a comprehensive graphical user environment 

 for performing model conceptualizations, mesh generation, statistical 

 interpretation, and visual examination of surface water model simulation 

 results. 



• STWAVE. This tool is a time-independent, finite-difference spectral 

 wave energy propagation model. The STWAVE model (Resio 1987, 



32 Chapter 4 DMS-Analytical Toolbox 



