The dataset represents the global distribution of warm water coral reefs and should be seen an ‘interim’ global product. It has been compiled from a number of data sources which have been merged together by UNEP-WCMC and the WorldFish Centre in collaboration with WRI and TNC. It supersedes the dataset used in the World Atlas of Coral Reefs (2001), although some aspects of this product still originate from that data source. This amalgamated dataset has been created to further mobilise the Millennium Coral Reef Map Products and their validation. This data set should by no means replace the official release of the Millennium coral reef map and users should always check at the official sites for the most up-to-date available information. This dataset does not contain the full 5 level geomorphological categorisation. In part, for the validated products, it maintains the simplified Reefbase subset but for the remaining areas i.e. the unvalidated data and data from other sources, there is only a single class to indicate coral reef.
The Approximate % coverage of data sources are as follows
- Millennium Coral Reefs (Unvalidated) 50%
- Millennium Coral Reefs (Validated) 30 %
- Other sources 20%
The dataset comprises 3 main components and must be cited in the following manner strictly maintaining the three separate entities in their entirety: -
Millennium Coral Reef Mapping Project validated maps provided by the Institute for Marine Remote Sensing, University of South Florida (IMaRS/USF) and Institut de Recherche pour le Développement (IRD, Centre de Nouméa), with support from NASA.
Millennium Coral Reef Mapping Project unvalidated maps provided by the Institute for Marine Remote Sensing, University of South Florida (IMaRS/USF), with support from NASA. Unvalidated maps were further interpreted by UNEP-WCMC. Institut de Recherche pour le Développement (IRD, Centre de Nouméa) do not endorse these products.
Other data have been compiled from multiple sources by UNEP-WCMC. Full source information is attached to individual polygons. For display and use of data below the global scale please check and cite individual data sources according to the citations within the full source table provided with this dataset.
Size: 1.22 GB
Bounding Coordinates: West: -180.000000
Coordinate System: Geographic
Angular Units: Decimal degrees
Spheroid: WGS 1984
Datum: WGS 1984
Format: Vector shapefile
Format version: ArcGIS 9.3
Contact organisation: UNEP-WCMC
Contact email: firstname.lastname@example.org
The Global Distribution of Coral Reefs (2010) is licenced under the Datasets Available from UNEP-WCMC, excluding the WDPA licence.
Datasets available under this license are typically collaboratively compiled datasets, having been developed from a large number of sources and by a large number of key partners. Please see the metadata for more specific information on methodology, sourcing, attribution, and partners, for each dataset.
They are available for download subject to the Terms and Conditions of Use for Datasets Available from UNEP-WCMC, excluding the World Database on Protected Areas.
Read more about this licence.