Table 1.

Data input into the InVEST coastal vulnerability model for the calculation of the index of exposure (EI)

Data input	Variables	Sources
Administrative boundaries and coastline		Database of global administrative boundaries, GADM data 3.6 (2018), https://gadm.org
Relief	Topography (1 arc-second ~30m) Bathymetry (15 arc-second grid)	ASTER Global Digital Elevation Model, https://asterweb.jpl.nasa.gov General Bathymetric Chart of the Oceans (GEBCO_2019), https://www.gebco.net/data_and_products/gridded_bathymetry_data/gebco_2019/gebco_2019_info.html
Wind and wave exposure	Wind and wave data compiled from 8 years of WAVEWATCH III model hindcast reanalysis	Embedded in the InVEST model
Surge potential	Continental shelf	Embedded in the InVEST model 30-m depth contour line
Geomorphology	Shoreline change rates	Average annual rates for the period 1984–2016 at 500-m spacing along the coast (Luijendijk et al. 2018)
Habitats	Coral reefs	Global Distribution of Coral Reefs, http://data.unep-wcmc.org/datasets/1 (UNEP-WCMC et al. 2018)
	Mangroves	World Atlas of Mangroves, https://data.unep-wcmc.org/datasets/5 (Spalding et al. 2010)
	Seagrasses	Global Distribution of Seagrasses, http://data.unep-wcmc.org/datasets/7 (UNEP-WCMC, Short FT 2017)
Population	The Gridded Population of the World (GPWv4)	Center for International Earth Science Information Network (CIESIN)—Columbia University. 2018. NASA Socioeconomic Data and Applications Center (SEDAC). 10.7927/H4JW8BX5