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USGS research article titled, “Impact of Hurricane Irma on Coral Reef Sediment Redistribution at Looe Key Reef, Florida, USA” was selected by the Ocean Science journal editor as a highlight article. 

Top shows elevation change in meters, center shows Hurricane Irma trackline, and bottom shows map of different habitat types
Figure 4 from the paper "Impact of Hurricane Irma on coral reef sediment redistribution at Looe Key Reef, Florida, USA" is also listed as a Highlight article on the journal's home page.

The journal Ocean Science highlights a new USGS research article describing the impacts of Hurricane Irma on seafloor elevation and structure at Looe Key Reef located along the lower Florida Reef Tract. The article is available at https://os.copernicus.org/articles/20/661/2024/. It is also listed under highlights on the Ocean Science journal homepage  https://www.ocean-science.net/

Global understanding of storm-driven sediment transport along coral reefs and its impact to species and habitats is limited. Measurement of seafloor elevation- and volume-change due to this category 4 hurricane showed rapid burial of coral reef habitats and migration of large seafloor features due to the storm. Post-storm erosion rates were two orders of magnitude greater than historical rates, indicating areas of seafloor instability that could be less suitable for restoration of benthic species. Information from this study can help guide selection of locations to improve success of seafloor habitat and coral restoration.

Top left, radar image of Hurricane Irma; top right, map of wave height; bottom left, image before; bottom right, image after.
Figure 1. Location of the Florida Keys Reef Tract, Hurricane Irma track line, and impact. (a) NOAA–National Weather Service WSR-88D radar image (decibels, DBZ) from South Florida on 10 September 2017 at 05:22 Eastern Daylight Time (EDT) showing the approach of Hurricane Irma (the inset black line is the hurricane track line). (b) Significant wave height (m) from the US Geological Survey (USGS) Coupled Ocean, Atmosphere, Wave, and Sediment Transport (COAWST) model on 10 September 2017 at 05:00 EDT (Warner et al., 2010, image credit: Patricia Dalyander, USGS). (c) Satellite imagery from 30 August 2017, 11 d prior to landfall of Hurricane Irma in the Florida Keys (NASA, 2023, EOSDIS Worldview Imagery). (d) Satellite imagery from 13 September 2017, 3 d after Hurricane Irma landfall in the Florida Keys, showing an extensive resuspended sediment plume (NASA, 2023, EOSDIS Worldview Imagery). Red boxes show the location of Looe Key Reef relative to other reefs along the reef tract. an extensive resuspended sediment plume (NASA, 2023, EOSDIS Worldview Imagery). Red boxes show the location of Looe Key Reef relative to other reefs along the reef tract.

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