The Copernicus Sentinel-3A satellite saw the temperature at the top of Hurricane Harvey on 25 August 2017 at 04:06 GMT as the storm approached the US state of Texas.
The brightness temperature of the clouds at the top of the storm, some 12�15 km above the ocean, range from about �80�C near the eye of the storm to about 20�C at the edges.
Hurricanes are one of the forces of nature that can be tracked only by satellites, providing up-to-date imagery so that authorities know when to take precautionary measures. Satellites deliver information on a storm�s extent, wind speed and path, and on key features such as cloud thickness, temperature, and water and ice content.
Sentinel-3�s Sea and Land Surface Temperature Radiometer measures energy radiating from Earth�s surface in nine spectral bands and two viewing angles.
Image Credit: NASA/ESA
Explanation from: http://www.esa.int/spaceinimages/Images/2017/08/Hurricane_Harvey
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