Sea Level Affecting Marshes Model

Sea Level Affecting Marshes Model (SLAMM) is a coastal model of shoreline effects due to sea level rise. Modeled processes include organic matter and sediment accumulation, shore erosion, road infrastructure effects, and interactions with aquatic vegetation.

Warren Pinnacle
Model Information
For more information about this model, go to
Spatial Resolution
The region of interest is subdivided into equally sized cells. Cells are typically 5 to 30m in each dimension and the vertical dimension must be compatible with NAVD88 elevation files.
Temporal Resolution
Model focus is the long term effects of sea level rise on shorelines and wetlands, as such the defined time step is on the order of years.
Model generates GIS raster files to be used in other analyses.
Intended User
Model Type
Inclusion of Climate Change
Climate conditions are accounted for directly. Model is designed to evaluate sea level rise on wetlands and shorelines due to climate change.
Geographic Region
Data Requirements
some data sets built in
Source Code Availability
open source
Computational Burden
Scenario Modeling
batch mode likely
Coding Language
GUI, html, other: Delphi/Perl/Mathcad
Operating System
not applicable
Mathematical Approach
optimization, simulation
Maintenance Plan
Date of Last Known Update
not available
User Manual
go to documentation at