Atolls of the world: A reappraisal from an optical remote sensing and global mapping perspective

被引：4
作者：
Andrefouet, S. [1 ]
Paul, M. [2 ]
机构：
[1] Univ Nouvelle Caledonie, Univ Reunion, Inst Rech Dev, CNRS,IFREMER,UMR 9220,ENTROPIE,IRD, BP 49 Vairao, Tahiti, French Polynesi, France
[2] 4 Bis Rue Pierre Puech, Noumea 98800, New Caledonia
来源：
MARINE POLLUTION BULLETIN | 2023年 / 194卷
关键词：
Remote sensing; Landsat; Millennium Coral Reef Mapping Project; Lagoon; Coral reef geomorphology; CARBONATE PLATFORMS; IN-SITU; CORAL; PACIFIC; GEOMORPHOLOGY; COMMUNITIES; ISLANDS;
D O I：
10.1016/j.marpolbul.2023.115400
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
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页数：10
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