**AWARDS ISSUED PRIOR TO JANUARY 20, 2025, WERE FUNDED UNDER PREVIOUS ADMINISTRATIONS AND MAY NOT REFLECT THE PRIORITIES AND POLICIES OF THE CURRENT ADMINISTRATION.** RATIONALE: ON SEPTEMBER 28, 2022, HURRICANE IAN MADE LANDFALL IN SOUTHWESTERN FLORIDA AS A CATEGORY 4 HURRICANE; HOWEVER, THE EXTENT AND SEVERITY OF THE IMPACTS ARE STILL UNKNOWN. OUR OVERALL GOAL IS TO DEVELOP AND OFFER AN OPEN-SOURCE WEB-BASED MAPPING PLATFORM THAT PROVIDES A TEMPORAL SEQUENCE OF HURRICANE DISTURBANCE SEVERITY AND RECOVERY MAPS ACROSS FORESTED AREAS WITHIN HURRICANE IAN'S PATH IN FLORIDA. APPROACH: WE WILL LEVERAGE NASA'S GLOBAL ECOSYSTEM DYNAMICS INVESTIGATOR (GEDI) AND LANDSAT 9 OLI-2 DATA ALONG WITH ARTIFICIAL INTELLIGENCE ALGORITHMS, TO MAP FOREST ABOVEGROUND BIOMASS (AGB) AT A 30 M SPATIAL RESOLUTION ACROSS HURRICANE IAN'S PATH AT TWO MONTHS PRE- AND AT TWO, SIX- AND TWELVE-MONTHS POST-HURRICANE IAN DISTURBANCE. WE WILL USE THESE MAPS TO PRODUCE A TEMPORAL SEQUENCE OF HURRICANE DAMAGE SEVERITY ESTIMATES. MAPS WILL BE INPUT INTO AN OPEN-SOURCE WEB-BASED, USER-FRIENDLY MAPPING PLATFORM USING GEE TO BROADEN ITS ACCESSIBILITY AND APPLICATIONS. WE WILL CREATE A TRAINING WEBINAR SUPPORTING OUR PLATFORM THAT WILL BE DISTRIBUTED USING THE UF'S EXTENSION NETWORK AND TAUGHT THROUGH UF'S 4-H FOREST ECOLOGY PROGRAM. POTENTIAL IMPACT AND EXPECTED OUTCOMES: THE PROJECT WILL PROVIDE A USER-FRIENDLY MAPPING PLATFORM FOR MANAGEMENT AGENCIES AND THE PUBLIC TO ASSESS THE SPATIAL DISTRIBUTION AND SEVERITY OF HURRICANE DAMAGE AND SHORT-TERM RECOVERY PATTERNS OF FORESTS TO SUPPORT RAPID FOREST MANAGEMENT DECISIONS. WITHIN 3 MONTHS OF RECEIVING THE AWARD, WE WILL BE ABLE TO PROVIDE MAPS OF PRE-AND POST-HURRICANE FOREST AGB AND CHANGES IN AGB THAT CAN BE USED FOR EARLY ASSESSMENT OF HURRICANE IMPACTS, HELPING THE SPATIAL PRIORITIZATION OF POST-HURRICANE MANAGEMENT.