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Sand Disturbed by the Passing of Hurricane Irma
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Sand Disturbed by the Passing of Hurricane Irma

Hurricane Irma didn't just impact land. As seen in these before-and-after true-color images captured by the VIIRS instrument on the NOAA/NASA Suomi NPP satellite September 7, 2017 (top) and September 11 (bottom), the storm altered the distribution of sand around the coast of Florida. The light blue color shows sediment suspended in the water, kicked up by the intensity of the storm. According to the Florida Keys National Marine Sanctuary, damage to natural resources in the region could be significant.

Although true-color images like this may appear to be photographs of Earth, they aren't. They are created by combining data from the three color channels on the VIIRS instrument sensitive to the red, green and blue (or RGB) wavelengths of light into one composite image. In addition, data from several other channels are often also included to cancel out or correct atmospheric interference that may blur parts of the image.

Referral:Florida Keys National Marine Sanctuary
Terms of Use:Please credit NOAA/NASA
Keywords:hurricane, Irma, turbidity, NPP, VIIRS, 2017.09.11 logo
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