Researchers created a toolkit for determining the clarity and surface temperature of coastal waters. The data is freely accessible data and can help assess reefs around the world. Scientists used NASA satellite measurements and Google Earth Engine data to create a toolkit for determining the vuln
Belize’s barrier reef system, including a deep marine cave known as the Great Blue Hole, is the subject of a recent study in which researchers used 20 years of NASA satellite data to assess the risk to coral reefs from higher temperatures and murky water.
The 185-mile-long barrier reef system off the coast of Belize encompasses vibrant marine environments that support thousands of animal and plantand drive the Central American country’s largest industry, tourism. The system is one of about 1,200 UNESCO World Heritage sites around the world., the scientists ranked 24 marine protected areas off the Belize coast based on the risks coral face from murky water and rising temperatures.
To gather data on water clarity and surface temperature over large areas, researchers turned to the Moderate Resolution Imaging Spectroradiometer , which was developed at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and launched in 2002 as one of several instruments aboard the agency’s Aqua satellite. In addition to being available from NASA, MODIS images and data sets are accessible on Google Earth Engine.
Port Honduras Marine Reserve, a 156-square-mile protected area in southern Belize, showed the highest coral vulnerability score: 10 out of 12. Based on the index, the study also flagged Swallow Caye Wildlife Sanctuary, Sapodilla Cayes Marine Reserve, and Corozal Bay Wildlife Sanctuary as areas for concern.
“We were trying to make the data and our approach as accessible as possible,” said Callejas, who started the research during an internship at. “Our main purpose was to make a toolkit that would be easy to use, that would produce an index that was easy to understand, and that could be used to see which marine protected areas may need closer attention.”
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