Nature-Based Solutions Explorer for Watershed Planning

Explore, evaluate, and better prioritize nature-based solutions for improved watershed planning

The Nature-Based Solutions Explorer is an interactive, map-based tool that allows non-modelers to evaluate NBS options and benefits across their watershed under both current and projected future conditions.

With the user-friendly, web-based tool land managers, water planners, and community members can better identify, characterize, and evaluate nature-based solutions (NBS) at the watershed scale.

It combines geospatial data, hydrologic and water-quality modeling, and localized data inputs to estimate resilience benefits and co-benefits under current and projected scenarios. Users set up custom projects implementing one or more NBS of their choice in their selected watershed.

With the ability to conduct multiple runs for each project varying NBS types, locations, and design parameters, users can compare and prioritize their selected NBS implementation configurations based on the quantified benefits.

How the NBS Explorer Tool Works

Interactive maps and opportunity layers help users identify feasible project locations and appropriate NBS types. Users can refine default inputs with local data to better represent site conditions.
After setting up a NBS project, the tool quantifies local and downstream impacts—including flood-resilience benefits and co-benefits—using a hydrologic and water-quality model, geospatial analyses, and statistical methods.
NBS Explorer is built on RTI’s WaterFALL® model platform, linking science, modeling, and planning priorities to inform decision-making. The tool can be deployed for any watershed where a WaterFALL model has been developed.

Key Benefits of NBS Explorer for Water Planning

Interactive maps and opportunity layers help users identify feasible project locations and appropriate NBS types. Users can refine default inputs with local data to better represent site conditions.
After setting up a NBS project, the tool quantifies local and downstream impacts—including flood-resilience benefits and co-benefits—using a hydrologic and water-quality model, geospatial analyses, and statistical methods.
NBS Explorer is built on RTI’s WaterFALL® model platform, linking science, modeling, and planning priorities to inform decision-making. The tool can be deployed for any watershed where a WaterFALL model has been developed.

Training, Support, and Engagement for NBS Explorer

RTI provides training and resources to help communities and other interested parties use the NBS Explorer to prioritize projects and quantify environmental benefits. For outreach and support, contact the NBS Explorer team at waterfall@rti.org.