RSM Tool: SMT Fact Sheet

<div>The Sediment Mobility Tool (SMT) is a scoping level tool for siting nearshore placement areas of dredged sediment. The tool uses Snell’s Law to transform WIS hindcast wave data to the nearshore site. The depth of closure, which is a specified depth along a beach profile where net sediment transport is very small or nonexistent, is calculated using several commonly used empirical equations which are described by Brutsché et al. (2016). The frequency of sediment mobility is calculated using both linear and nonlinear stream-function wave theories using procedures described by McFall et al. (2016). The cross-shore sediment migration is calculated using an empirical relationship described by Larson and Kraus (1992). The wave rose provides an axis of wave dominated transport at the nearshore site.</div>