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Detecting detrimental change in coral reefs
Date:1/26/2012

coral reefs were systematically and regularly imaged, greatly increasing our knowledge of reefs. The Landsat archive enabled the completing of the first exhaustive global survey of reefs (Millennium Global Coral Reef Mapping Project, http://landsat.gsfc.nasa.gov/news/news-archive/news_0031.html). Efforts are currently underway to receive and ingest Landsat data collected and housed by international ground-receiving stations. International partners often downlink Landsat scenes of their countries that the U.S. does not, so it is very likely that historic reef images will be added the U.S. Landsat archive during this process.

Carrying on Outside of Carysfort

Temporal texture gives scientists an entirely new way to look at coral reefs. A worldwide study could help managers locate change 'hotspots' and could better inform conservation efforts.

Ideally, after more testing, Dustan would like to see an automatic change detection system implemented to follow major worldwide reef systems. "There is no reason that a form of temporal texture monitoring could not be implemented with current satellites in orbit," Dustan says.

Because reefs are underwater it is difficult to grasp the extensive devastation being exacted upon them. Global temporal texture mapping could bring the ravages into focus.


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Contact: Rani Gran
Rani.C.Gran@nasa.gov
301-286-2483
NASA/Goddard Space Flight Center
Source:Eurekalert  

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