Fig. 1
From: Sea level rise and coastal flooding risks in the Gulf of Guinea
(a) GDP per capita in 2023 across the GoG (IMF, 2024), with African heritage sites displayed in purple and the 200 m isobath depicted in dashed black line. (b) Sea level trends (mm/yr) in the GoG from 1993 to 2021, computed from gridded monthly SLAs at 1/4-degree spatial resolution distributed by Copernicus Marine Environment Monitoring Service (CMEMS). The mainland population density distribution in 2021 (people/km2), based on data from Grid Population of the World (GPW, https://sedac.ciesin.columbia.edu/data/collection/gpw-v4), is superimposed on the geographical boundaries of the equator (black, 10° E-50° W and 1° N-1° S) and the GoG coastal areas of interest: Latitudinal range (0–4° N, 1° wide coastal band) outlined in pink and longitudinal range (10° E-10° W, 1° wide coastal band) outlined in orange. The 200 m isobath is indicated by the white dashed line along the coast. All plots were generated using Generic Mapping Tools (GMT), Version 6.5.0 (https://www.generic-mapping-tools.org/).
