Assessment of Coastal Impacts and Hazards in Florida and Georgia
During Hurricane Irma, much of Florida and Georgia experienced significant impacts to beaches, dunes and coral reefs. Extensive erosion, flooding, and coral losses, observed by the USGS, result in increased immediate and long-term hazards to natural and populated shorelines, putting critical infrastructure at risk to future flooding and erosion and causing economic losses.
During Hurricane Irma, Florida and Georgia experienced significant impacts to beaches, dunes, barrier islands, and coral reefs. Extensive erosion and coral losses result in increased immediate and long-term hazards to shorelines that include densely populated regions. This puts critical infrastructure at risk to future flooding and erosion and may cause economic losses. The USGS Coastal and Marine Hazards Resources Program (CMHRP) is assessing hurricane-induced coastal erosion along the southeast US coastline Puerto Rico and implications for vulnerability to future storms.
Post-storm repair and recovery investments that focus on both the increased immediate threat resulting from Irma’s impacts and the longer-term cumulative impacts will benefit from updated and expanded assessments of coastal vulnerability to storms. These projects, as well as supplemental funded work in Puerto Rico and North Carolina, will provide information that support real-time hazard guidance during storms, emergency preparedness, and long-term management of existing or proposed engineering, infrastructure, and coastal protection systems. The work is part of a larger program focused on understanding coastal change hazards on our nation’s coasts and providing scientific information to meet stakeholders’ needs.
Return to Assessment of Coastal Impacts in Florida and Puerto Rico
Related Content
Storm-Induced Overwash Extent
National Assessment of Hurricane-Induced Coastal Erosion Hazards
Lidar-derived Beach Morphology (Dune Crest, Dune Toe, and Shoreline) for U.S. Sandy Coastlines
Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events
Forecasts of coastal change hazards
The hidden costs of coastal hazards: Implications for risk assessment and mitigation
Related Content
- Data
Storm-Induced Overwash Extent
The National Assessment of Coastal Change Hazards project exists to understand and predict storm impacts to our nation's coastlines. This data release defines the alongshore extent of overwash deposits, determined from aerial photograph analysis, attributed to coastal processes during storm events. Note: This data release was versioned on September 16, 2021. Please see the Suggested Citation sectNational Assessment of Hurricane-Induced Coastal Erosion Hazards
These datasets contain information on the probabilities of hurricane-induced erosion (collision, inundation, and overwash) for each 1-km section of the United States sandy open-ocean coastline for category 1-5 hurricanes. The analysis is based on a storm-impact scaling model (Sallenger, 2000; https://www.jstor.org/stable/4300099) that uses observations of beach morphology combined with sophisticatLidar-derived Beach Morphology (Dune Crest, Dune Toe, and Shoreline) for U.S. Sandy Coastlines
The U.S. Geological Survey (USGS) National Assessment of Coastal Change Hazards (NACCH) project aims to identify areas of the nation's coastline that are most vulnerable to extreme storms and long-term shoreline change. These assessments require coastal elevation data across diverse geographic regions and covering a time span of many years. The datasets published here, organized by individual fielStorm-Induced Coastal Change Forecasts: Archive of Individual Storm Events
These data sets contain information on the probabilities of storm-induced erosion (collision, inundation and overwash) on sandy beaches along the U.S. Gulf and Atlantic coasts during real-time peak forecast conditions. The analysis is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast will respon - Publications
Forecasts of coastal change hazards
Model predictions of severe storm impacts provide coastal residents, emergency managers, and partner organizations valuable predictive information for planning and response to extreme storm events. The foundation of this work is a USGS-developed numerical model to forecast storm-induced coastal water levels and expected coastal change, including dune erosion, overwash, and inundation. The model isAuthorsKara S. Doran, Hilary F. Stockdon, Joseph Long, Nathaniel G. PlantThe hidden costs of coastal hazards: Implications for risk assessment and mitigation
Two-year study undertaken by the H. John Heinz III Center for Science, Economics and the Environment to develop new strategies to identify and reduce the costs of weather-related hazards associated with rapidly increasing coastal development activities.AuthorsH. Kunreuther, R. Platt, S. Baruch, R. L. Bernknopf, M. Buckley, V. Burkett, D. Conrad, T. Davidson, K. Deutsch, D. Geis, M. Jannereth, A. Knap, H. Lane, G. Ljung, M. McCauley, D. Mileti, T. Miller, B. Morrow, J. Meyers, R. Pielke, A. Pratt, J. Tripp - News