[This dataset is embargoed until January 4, 2027]. Data include sediment grain size, sediment carbon content and carbon stable isotope analysis, collected at Charlotte Harbor Florida (two sites) in August 2022, and in the Mekong Delta, Vietnam (Ca Mau, Kien Giang and Soc Trang) from 24-08-2022 to 09-09-2022. Data were collected to determine if sediment characteristics and sediment to atmosphere CO2 flux at mangrove coastlines is different depending on the erosional or accretional state of the site. Full details about this dataset can be found at https://doi.org/10.5285/086a5b43-7fdb-430a-9202-2eeef4649456
