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Mangrove damage along northern Gulf of Mexico from extreme freeze event on February 2021

August 18, 2023

Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from an extreme climatic event. We used ground- and satellite-based black mangrove (Avicennia germinans) leaf damage data from the northern Gulf of Mexico (USA and Mexico) to examine the effects of an extreme freeze in a region where black mangroves are expanding their range. The February 2021 event produced coastal temperatures as low as -10 ℃ in some areas, exceeding thresholds for A. germinans damage and mortality. We used Sentinel-2 surface reflectance data to assess vegetation greenness before and after the freeze, along with ground-based observations of A. germinans leaf damage.

Publication Year 2023
Title Mangrove damage along northern Gulf of Mexico from extreme freeze event on February 2021
DOI 10.5066/P9C4E2CW
Authors Melinda Martinez, Michael J Osland, James B Grace, Nicholas M Enwright, Camille L Stagg, Simen Kaalstad, Gordon H Anderson, Anna R. Armitage, Just Cebrian, Karen L Cummins, Richard H Day, Donna J. Devlin, Kenneth H Dunton, Laura C Feher, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David Kaplan, Amy K Langston, Christopher J. Miller, Charles E Proffitt, Nathan Reaver, Colt R Sanspree, Caitlin M. Snyder, Andrew P Stetter, Kathleen M Swanson, Jamie E Thompson, Carlos Zamora-Tovar
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization Wetland and Aquatic Research Center - Gainesville, FL