@article{fdi:010090233, title = {{A}tolls of the world : a reappraisal from an optical remote sensing and global mapping perspective}, author = {{A}ndr{\'e}fou{\¨e}t, {S}erge and {P}aul, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {M}illennium {C}oral {R}eef {M}apping {P}roject ({MCRMP}) aimed to map coral reefs worldwide at geomorphological thematic scales using {L}andsat satellite images at 30 m spatial resolution. {T}he 5-level hierarchical classification scheme implemented by {MCRMP} identified at {L}evel 2 '{A}tolls' as one of the main types of coral reef complexes. {I}n this review, the qualitative criteria used by {MCRMP} to identify atolls are presented. {T}hen, we report on the global census of atolls, from which a consistent geomorphologic {GIS} database is provided. {A} total of 598 atolls are identified and mapped. {T}he quantitative database provides surface areas for all geomorphologic units at {L}evel 4 and 5 of the {MCRMP} classification scheme. {I}t allows further work on atoll and coral reef classifications, regionally and globally, in order to identify geomorphic trends and outliers. {I}t is also a convenient database to use in multivariate analyses with ancillary biodiversity, fishery, socio-economic or climate data.}, keywords = {{R}emote sensing ; {L}andsat ; {M}illennium {C}oral {R}eef {M}apping {P}roject ; {L}agoon ; {C}oral reef geomorphology ; {PACIFIQUE} ; {OCEAN} {INDIEN} ; {ATLANTIQUE} ; {ASIE} ; {AUSTRALIE} ; {CARRAIBES} ; {MER} {ROUGE}}, booktitle = {}, journal = {{M}arine {P}ollution {B}ulletin}, volume = {194}, numero = {{A}}, pages = {115400 [ p.]}, ISSN = {0025-326{X}}, year = {2023}, DOI = {10.1016/j.marpolbul.2023.115400}, URL = {https://www.documentation.ird.fr/hor/fdi:010090233}, }