Participatory Modeling

Connecting local knowledge and scientific understanding

During five meetings in 2018, representative community members in St. Bernard Parish were involved in a fact-finding and participatory modeling activity. Areas of risk were identified, and potential natural and nature-based solutions were tested through modeling. The models were adjusted based on the community group’s feedback. This summary outlines how this project moved forward, what was discovered through this new process, and if the community found value in the approach.

The Challenge

Between 1932 and 2010, Louisiana’s coastal area lost more than 1,800 square mile of land through a variety of means including erosion, subsidence, lack of sediment nourishment from the Mississippi River, canal dredging, and much more. The land loss represents a complex mixture of natural and human-induced causes where every potential solution comes with pros and cons that often require compromise.

The Approach

This project tested an approach that could prove useful in not only better incorporating local knowledge into the coastal planning process, but also increasing public understanding and confidence in the modeling process. The goal of the community/researcher collaboration was to co-design a computer model representing the hydrology and ecology of Breton Sound Estuary and then use the model to test different nature-based restoration and protection projects.