IRD, UMR-9220 ENTROPIE (Institut de Recherche pour le Développement, Université de la Réunion, IFREMER, CNRS, Université de la Nouvelle-Calédonie), BP 49 Vairao, Tahiti, French Polynesia.
4, bis rue Pierre Puech, 98800 Nouméa, New Caledonia.
Mar Pollut Bull. 2023 Sep;194(Pt A):115400. doi: 10.1016/j.marpolbul.2023.115400. Epub 2023 Aug 18.
The Millennium Coral Reef Mapping Project (MCRMP) aimed to map coral reefs worldwide at geomorphological thematic scales using Landsat satellite images at 30 m spatial resolution. The 5-level hierarchical classification scheme implemented by MCRMP identified at Level 2 'Atolls' as one of the main types of coral reef complexes. In this review, the qualitative criteria used by MCRMP to identify atolls are presented. Then, 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. The quantitative database provides surface areas for all geomorphologic units at Level 4 and 5 of the MCRMP classification scheme. It allows further work on atoll and coral reef classifications, regionally and globally, in order to identify geomorphic trends and outliers. It is also a convenient database to use in multivariate analyses with ancillary biodiversity, fishery, socio-economic or climate data.
千年珊瑚礁测绘项目（MCRMP）旨在利用空间分辨率为 30 米的陆地卫星图像，以地貌专题尺度绘制全球珊瑚礁图。MCRMP 实施的 5 级分层分类方案在第 2 级“环礁”中确定了珊瑚礁复合体的主要类型之一。在本综述中，介绍了 MCRMP 用于识别环礁的定性标准。然后，我们报告了环礁的全球普查情况，从中提供了一个一致的地貌 GIS 数据库。总共确定并绘制了 598 个环礁。定量数据库为 MCRMP 分类方案的第 4 级和第 5 级的所有地貌单元提供了表面积。它允许在区域和全球范围内进一步开展环礁和珊瑚礁分类工作，以确定地貌趋势和异常值。它也是一个方便的数据库，可用于与辅助生物多样性、渔业、社会经济或气候数据的多元分析。
