Atolls of Pacific Ocean: geospatial vector data (MCRMP project)

The Millennium Coral Reef Mapping Project provides thematic maps of coral reefs worldwide at geomorphological scale. Maps were created by photo-interpretation of Landsat 7 and Landsat 8 satellite images. Maps are provided as standard Shapefiles usable in GIS software. The geomorphological classification scheme is hierarchical and includes 5 levels. The GIS products include for each polygon a number of attributes. The 5 level geomorphological attributes are provided (numerical codes or text). The Level 1 corresponds to the differentiation between oceanic and continental reefs. Then from Levels 2 to 5, the higher the level, the more detailed the thematic classification is. Other binary attributes specify for each polygon if it belongs to terrestrial area (LAND attribute), and sedimentary or hard-bottom reef areas (REEF attribute). Examples and more details on the attributes are provided in the references cited. The products distributed here were created by IRD, in their last version. Shapefiles for 245 atolls of the Pacific Ocean as mapped by the Global coral reef mapping project at geomorphological scale using LANDSAT satellite data (L7 and L8). The data set provides one zip file per country or region of interest. Global coral reef mapping project at geomorphological scale using LANDSAT satellite data (L7 and L8). Funded by National Aeronautics and Space Administration, NASA grants NAG5-10908 (University of South Florida, PIs: Franck Muller-Karger and Serge Andréfouët) and CARBON-0000-0257 (NASA, PI: Julie Robinson) from 2001 to 2007. Funded by IRD since 2003 (in kind, PI: Serge Andréfouët).

千禧年珊瑚礁制图项目（Millennium Coral Reef Mapping Project）提供全球范围内珊瑚礁的地貌尺度专题地图。这些地图通过对Landsat 7和Landsat 8卫星影像的照片解译（photo-interpretation）生成，以标准Shapefile格式提供，可在地理信息系统（GIS）软件中使用。地貌分类体系采用分层结构，包含5个级别。地理信息系统产品为每个多边形包含多项属性，其中提供了5级地貌属性（数值编码或文本形式）：第1级对应远洋礁与大陆礁的区分；从第2级到第5级，级别越高，专题分类越详细。其他二元属性则为每个多边形指定其是否属于陆地区域（LAND属性）、沉积礁区域或硬底礁区域（REEF属性）。关于这些属性的示例及更多细节可在引用文献中查阅。此处发布的产品由IRD制作，为最新版本。全球珊瑚礁制图项目（Global Coral Reef Mapping Project）利用LANDSAT卫星数据（L7和L8），以地貌尺度绘制了太平洋245个环礁的Shapefile文件。该数据集按目标国家或地区分别提供压缩文件（ZIP）。全球珊瑚礁地貌尺度制图项目采用LANDSAT卫星数据（L7和L8），2001至2007年由美国国家航空航天局（NASA）通过资助项目NAG5-10908（南佛罗里达大学，项目负责人（PI）：Franck Muller-Karger与Serge Andréfouët）及CARBON-0000-0257（NASA，项目负责人（PI）：Julie Robinson）资助；2003年起由IRD以实物形式资助（项目负责人（PI）：Serge Andréfouët）。