A total of 210 points in 2024 (28 May, 18 april, 13 September, 19 September, and 25 October) and 195 points in 2025 (8 April, 18 and 29 April, 3 June, 17 June, and 4 July) were surveyed with an SP80 DGPS by Imad El Jamaoui and Natacha Volto as part of the ESA Coastal Blue Carbon project. Additionally, 174 and 160 points obtained from photointerpretation of multispectral drone orthomosaics from 19 September 2024 and 18 September 2025, respectively, were recorded. At each point, the vegetation type was specified.

Within the ESA Coastal Blue Carbon project, the LIENSs laboratory contributed drone-derived products, SP80 ground survey points (with longitude, latitude, and plant data) and biomass measurements to test classification models for mapping salt marsh vegetation (e.g., Esnandes) and associated biomass/carbon stocks. Links to associated datasets are provided at the bottom of this sheet.