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NASA's Aqua satellite gets infrared hint on Tropical Depression 2

August 6, 2014



By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Infrared data gathered on the tropical low pressure area known as System 92L gave forecasters a hint that the low would become the Atlantic Ocean hurricane season's second tropical depression.

NASA's Aqua satellite passed over System 92L on July 21 at 11:53 a.m. EDT and the Atmospheric Infrared Sounder (AIRS) instrument gathered infrared data on the developing low pressure area. The infrared data shows temperature, and AIRS data showed some areas of very cold cloud top temperatures, exceeding the threshold of -63F/-52C that indicates cloud tops near the top of the troposphere. Those cloud top temperatures are also indicative of strong uplift (of air) and powerful thunderstorms. Soon after the AIRS data was taken the low that became Tropical Depression 2.

Keywords for this news article include: Aerospace, NASA/Goddard Space Flight Center.

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Source: Defense & Aerospace Week


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