Compiled from LandSat imagery covering the period 1997-2000.
Status and distributions of global mangroves have been mapped using recently available Global Land Survey (GLS) data and the Landsat archive. Approximately 1000 Landsat scenes were interpreted using hybrid supervised and unsupervised digital image classifcation techniques. Each image was normalized for variation in solar angle and earth-sun distance by converting the digital number values to the top-of-the-atmosphere reflectance. Ground truth data and existing maps and databases were used to select training samples and also for iterative labelling. Results were validated using existing GIS data and the published literature to map ‘true mangroves’.
Giri C, Ochieng E, Tieszen LL, Zhu Z, Singh A, Loveland T, Masek J, Duke N (2011a). Global distribution of mangroves forests of the world using earth observation satellite data. In Supplement to: Giri et al. (2011b). Cambridge (UK): UNEP World Conservation Monitoring Centre. URL: http://data.unep-wcmc.org/datasets/21
Giri C, Ochieng E, Tieszen LL, Zhu Z, Singh A, Loveland T, Masek J, Duke N (2011b). Status and distribution of mangrove forests of the world using earth observation satellite data. Global Ecology and Biogeography 20: 154-159
Size: 0.98 GB
West Bounding Coordinate: -179.950672
East Bounding Coordinate: 179.987788
North Bounding Coordinate: 32.350173
South Bounding Coordinate: -38.762073
Coordinate System: Geographic
Angular Units: Decimal Degrees
Spheroid: WGS 1984
Datum: WGS 1984
Format: Vector shapefile
Format version: ArcGIS 9.3.1
Contact organisation: UNEP-WCMC and USGS
Contact email: email@example.com
The Global Distribution of Mangroves USGS (2011) is licenced under the Datasets Available from UNEP-WCMC, excluding the WDPA licence.
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