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El Niño and the Deep Sea |
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| El Niño is monitored at sea as well as from space. NASA satellites in space measure changes in the temperature and height of the ocean surface. At sea, a network of NOAA buoys measures ocean temperatures 1500 feet down. When an El Niño occurs, changes in the deep ocean occur as well. |
NOAA scientists deploy buoys to measure deeper ocean temperatures. |
