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Australia's world-famous Great Barrier Reef is located in the Coral Sea, east of Queensland and on May 14, Tropical Cyclone Ann was moving over it. From their orbit in space, NASA's Terra and Aqua satellites passed over the Southern Pacific Ocean obtained visible and infrared imagery of the storm as it moved toward the Queensland coast.
The Great Barrier Reef is the world's largest coral reef system. The Reef is made up of more than 2,900 individual reefs and 900 islands that cover more than stretching for over 1,429 miles (2,300 kilometers).
Look - Storm - NASA - Aqua - Satellite
An infrared look at the tropical storm obtained by NASA's Aqua satellite revealed where the strongest storms were located within Tropical Cyclone Ann on May 13 at 0341 UTC (May 12 at 11:41 p.m. EDT). The Atmospheric Infrared Sounder or AIRS instrument aboard NASA's Aqua satellite analyzed cloud top temperatures and found cloud top temperatures of strongest thunderstorms as cold as or colder than minus 63 degrees Fahrenheit (minus 53 degrees Celsius) circling the center and in a large band of thunderstorms north of the center. Cloud top temperatures that cold indicate strong storms that have the capability to create heavy rain.
On May 14, NASA's Terra satellite provided a visible image of the storm to forecasters. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard Terra captured the storm as it was moving over the Great Barrier Reef in the Coral Sea. Multispectral satellite imagery at the time showed that an exposed, well-defined low-level circulation center with a small area of convection flaring 50 nautical miles to the south.
Ann - Wind - Shear - Directions - Levels
Ann is weakening because it has run into increased vertical wind shear, that is, winds blowing at different directions at different levels of the atmosphere tearing at the storm's structure. There is also dry air moving into Tropical Cyclone Ann at low...
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