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Typhoon Violet at Japan

This composite image shows typhoon Violet, along with surrounding winds measured by NSCAT, near Japan on September 20, 1996. The NSCAT data on surface wind direction and speed (wind vectors) are superposed atop an infrared cloud image from the Japanese meteorological satellite GMS-5. Wind direction is shown by arrows; here again, blue represents low wind speeds and red high ones. An apparent drop in wind speed near the center of the storm is probably due to attenuation of the satellite's radar signal by rain. This image is typical of the data that will be generated using NSCAT and made available to meteorologists.

Credit: NASA-JPL

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