The Florida Department of Environmental Protection announced on Mar. 25 that it has completed all airborne LiDAR data collection and received most vessel-based sonar data for its Florida Seafloor Mapping Initiative, which aims to create the most comprehensive map of the state’s seafloor to date. The department expects the full dataset to be available to the public in fall 2026.
This initiative is significant because it provides detailed information about underwater habitats, helping guide coastal protection, planning, and restoration efforts across Florida. According to the official website, the Florida Department of Environmental Protection supports efforts to build resilient coasts and communities through restoration and planning initiatives.
DEP Secretary Alexis A. Lambert said, “Florida’s coastline is one of our state’s greatest natural and economic assets, supporting millions of residents, tourism, commercial fisheries and critical infrastructure. Understanding the seafloor and the features that shape our coast helps us make smart decisions about protecting communities, strengthening resilience and investing taxpayer dollars where they will have the greatest impact.”
The mapping project uses advanced technologies such as airborne LiDAR systems for shallow waters and vessel-based multibeam sonar for deeper areas. High-resolution seafloor data is expected to support decisions on beach nourishment sources, improve storm surge modeling, and aid coral reef protection. Kimberly Jackson, Florida Geographic Information Officer, said: “Through FSMI, we have mapped more than 75,500 square kilometers using LiDAR and more than 64,000 square kilometers using sonar technologies. Before this initiative began, only about 25,600 square kilometers of Florida’s seafloor had been mapped. Today we have mapped more than 14 times that amount giving Florida an unprecedented understanding of its underwater landscape.”
Early analysis has revealed ancient shorelines near Miami as well as previously unknown mesophotic coral reefs offshore from Pensacola—ecosystems thriving in deeper waters with less light than typical reefs—according to findings cited by DEP scientists collaborating with federal agencies for further study.
According to the official website (https://floridadep.gov/), DEP also maintains state parks providing recreational opportunities across Florida; oversees more than 175 state parks trails and historic sites; aims to safeguard air water land resources; serves all regions with environmental programs; offers services including permitting environmental projects waste management regulation.
FSMI data will be integrated into a statewide digital elevation model through collaboration with U.S. Geological Survey projects so planners can access a seamless view from uplands out into coastal waters.
