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New satellite data reveals true decline of world's mangrove forests
Date:8/18/2010

international team, including 30 student interns and visiting scientists from across the world, analysed more than 1,000 'Landsat' scenes using digital image classification techniques. This enormous task allowed the team to slowly piece together the world's most accurate map of mangrove distribution.

This work represents the most comprehensive global database of mangrove forests ever created and has revealed that the world's remaining mangrove forests are spread across 118 countries and territories. Asia has 42% of the world's mangroves, followed by 21% in Africa, 15% in North and Central America, 12% in Oceania and 11% in South America.

"The mapping of mangrove forests at this resolution, on a global scale, has never been attempted, partly due to cost and computation limitations," concluded Dr Garik Gutman, from the NASA Land Cover/Land-Use Change Program which funded the project.

"The Global Land Survey data produced by NASA and USGS has enabled worldwide land cover projects like this, because pre-processing global coverage of Landsat data at project levels is a gigantic task."


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Contact: Ben Norman
Lifesciencenews@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert

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