The dataset contains five layers. One each for the 1996, 2007, 2010 and 2016 Global Mangrove Watch mangrove extents and a composite layer that combines those four timesteps (i.e., the maximal extent).

The dataset provides a framework for considering geomorphic and sedimentary setting when quantifying mangrove ecosystem services or restoration potential. Geomorphic features within the mangrove regions of the world were identified using a high-resolution coastline. These features were assigned to the classes deltas, estuaries, lagoons and bays, using a combination of existing information, a random forest model driven by the shape of the geomorphic feature and expert knowledge. Patches from the 1996, 2007, 2010 and 2016 Global Mangrove Watch mangrove extents were then associated to the geomorphic features. Mangrove patches were classified as deltaic, estuarine, lagoonal or open coast (associated with bays, or no coastal embayment), termed typological units. Mangrove patches were also assigned to a sedimentary setting using a model combining inorganic suspended particulate matter concentration and tidal amplitude. All deltaic and estuarine units were classed as terrigenous (i.e. dominated by minerogenic sedimentation from terrestrial sources). Whereas, lagoonal or open coast patches could be classed as terrigenous or carbonate (i.e. dominated by calcareous sedimentation).