“We were waiting for the first clear optical satellite imagery released by NASA this Sunday, Oct. Image credit: Su Ye, UConn GERS Laboratoryįollowing the storm, Post-Doctoral Researcher Su Ye says they were ready for the data. The potentially damaged regions (yellow polygons) in Fort Myers beach mapped the UConn GERS Laboratory using HLS data and a change detection algorithm developed by the lab. The algorithms developed by the GERS team sort through the data to detect even slight changes. The challenge is searching through that information to understand what is happening at ground level. They use images from satellites that scan the Earth’s surface every eight days, where each pixel represents an area measuring 30 meters-by-30 meters and contains a multitude of information. The map was made using methods based on previous research by the team to monitor forest disturbances. The platform used to build the map is open source and released just days after the storm, the researchers hope the information provided by the map can aid teams on the ground in the search and recovery efforts. UConn researchers from the Department of Natural Resources and the Environment Global Environmental Remote Sensing (GERS) Laboratory have created the first high-resolution land disturbance map detailing damage wrought by the hurricane’s wind and storm surge using a 30-meter Harmonized Landsat Sentinel-2 (HLS) dataset.
At least 109 people in the US have been reported killed by the Category 4 hurricane, with 105 of those deaths occurring in Florida, where efforts to locate survivors are still ongoing. The southeast is reeling from Hurricane Ian, the fifth largest in United States history, which made landfall on the Florida coast on September 28th. Image credit: Su Ye, UConn GERS Laboratory The HLS-based analysis reveals a large-scale damage pattern for Florida and indicates where damage hotspots are. A disturbance probability map of Florida’s peninsula as of October 3rd, 2022.
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