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Decision Tools

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Explore the Decision Tools module to find and share tools that can inform your decisions about natural resource management! Browse the list below or use the filters to discover relevant tools.

Learn more about this module on the About page, or click Contribute Content in the left menu to share your own tool on Great Lakes Inform.

Tradeoff Analysis Project logo

Minimum-Data Tradeoff Analysis Model (TOA-MD)

TOA-MD is a simulation model for multi-dimensional impact assessment of agricultural and aquaculture technologies, analysis of ecosystem service supply, and climate impact and adaptation assessment.
WEAP logo

Water Evaluation And Planning System (WEAP)

WEAP is a water balance model and can be applied to municipal and agricultural systems, a single watershed or complex transboundary river basin systems.
WinSLAMM logo

WinSLAMM - The Source Loading and Management Model

WinSLAMM shows relationships between sources of pollution and urban runoff quality. It now includes a wide variety of innovative source area and outfall control practices.
VIT logo

VIT: Software for Fisheries Analysis

VIT was designed to analyze exploited marine biotic populations based on catch data, structured by ages or sizes, from one or several gears.
VSP logo

Visual Sample Plan (VSP)

VSP is a software tool that supports the development of a defensible statistical sampling plan for confident decision making for a range of environmental studies.
WASP7 - The Water Quality Analysis Simulation Program screenshot

Water Quality Analysis Simulation Program (WASP7)

The WASP7 helps users interpret and predict water quality responses to natural phenomena and manmade pollution for various pollution management decisions.
Screenshot of WEMo

Wave Exposure Model (WEMo)

WEMo is a simple hydrodynamic model that helps coastal managers and ecologists estimate wave and wind parameters in coastal and estuarine environments.
What if? logo

What If? 2.0

What if? 2.0 is an alternatives analysis tool that provides long-term land use, population, and employment projections for census tracts and user-defined areas.
Zonation Logo


Zonation is a framework for large-scale conservation planning. It identifies areas, or landscapes, that are important for retaining habitat quality and connectivity for multiple species.


WQMAP, an integrated water quality simulator, allows users to create numerical grids, perform hydrodynamic simulations, conduct single constituent pollutant transport and multiple constituent eutrophication studies.

Wisconsin Great Lakes Coastal Community Planning Guide

The Great Lakes Coastal Community Planning site is meant to be used a tool to support planning efforts along the Lake Michigan and Lake Superior coasts of Wisconsin. 

Wildlife Habitat Benefits Estimation Toolkit

The Wildlife Habitat Benefits Estimation Toolkit includes spreadsheet-based valuation models, tables and databases used for estimating the economic benefits of wildlife and habitat conservation.

Watershed Conservation Screening Tool

The Watershed Conservation Screening Tool helps bulk water users that have surface water intakes decide if conservation strategies are viable ways to improve water quality.

WARMF- Watershed Analysis Risk Management Framework

WARMF is a watershed modeling framework and decision support system for applications including watershed stewardship, land use planning, climate change impact, mercury transport, and TMDLs.
Forest harvest scenario screenshot

Visual Nature Studio (VNS)

Visual Nature Studio creates detailed and realistic 3D models from animations in support of design alternatives for landscape planning.
USGS logo

USGS Habitat Evaluation Procedures (HEP)

The HEP accounting program uses the area of available habitat and Habitat Suitability Index (HSI) to quantify the effects of alternative management plans over time.
Townsquare logo


Townsquare is a suite of web-based tools to coordinate staff; expand collaboration, data sharing and analysis; and engage communities in the planning process.
Screenshot of UNIBEST

Uniform Beach Sediment Transport Coastline (UNIBEST-CL+)

UNIBEST (UNIform Beach Sediment Transport)-CL+ is a tool for modeling sediment transport along the coast. 

TerrSet Geospatial Monitoring and Modeling Software

TerrSet is an integrated geospatial software system for monitoring and modeling the earth system for sustainable development.
Stream Spatial Network visualization

Stream Spatial Network (SSN)

The Spatial Stream Network (SSN) Package was developed for R statistical software, which is powerful open source statistical computing and graphics software.

STELLA modelling software

STELLA software models the dynamics of highly interdependent systems. The software allows the user to piece together the relationships operating in an ecosystem.
STICS Report

Spatial Trends in Coastal Socioeconomics Quick Report Tool

The STICS Quick Report Tool uses a map-based interface to quickly determine demographic and economic characteristics for a wide variety of coastal management jurisdictions.
CSIRO logo

Spatial Tools for the Analysis of River Systems (STARS)

The purpose of the Spatial Tools for the Analysis of River Systems (STARS) toolset is to generate and format the data needed to fit spatial statistical models in R software.
Project Gigapolis logo


The SLEUTH model simulates urban growth in order to aid in understanding how expanding urban areas consume their surrounding land, and impact the local environment.
Screenshot of SLAMM-View


SLAMM-View is a web-mapping application that portrays pairs of simulation results from the Sea Level Affects Marshes Model (SLAMM) with other contextual geo-spatial layers.
SimLamb logo


SimLab provides a free development framework for Sensitivity and Uncertainty Analysis.
SimCoast logo


SimCoast is a fuzzy logic rule-based expert system designed to enable researchers, managers and decision-makers to create and evaluate different policy scenarios for coastal zone management.

Sea Lamprey Control Map

The Sea Lamprey Control Map is an interactive online map that allows users to trace the upstream and downstream impacts of barrier and barrier removal on sea lamprey populations in the Great Lakes.
SELES logo

Spatially Explicit Landscape Event Simulator (SELES)

SELES is a tool for constructing and running spatially explicit spatio-temporal landscape models that integrate natural and anthropogenic processes and track indicators over long time-frames and large spatial areas.

Modeled Strategies for Restoring Coastal Wetland Function in the Maumee River Area of Concern

This model can be used to estimate total phosphorus and total sediment loads to a reconnected wetland using high frequency turbidity and discharge measurements
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