Night is also when many types of clouds begin to form. With its night view, VIIRS is able to detect a more complete view of storms and other weather conditions, such as fog, that are difficult to discern with infrared, or thermal, sensors. Night images showed the widespread power outages that left millions in darkness in the wake of the storm. Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. The day-night band observed Hurricane Sandy, illuminated by moonlight, making landfall over New Jersey on the evening of Oct. Image of the Day Atmosphere Land Volcanoes Human Presence Remote Sensing. "For all the reasons that we need to see Earth during the day, we also need to see Earth at night," said Steve Miller, a researcher at NOAA's Colorado State University Cooperative Institute for Research in the Atmosphere. Intense lava fountains and lava flows illuminated a volcanic plume spreading across Sicily during an unusually pitched night of activity at the Italian volcano. This and other VIIRS day-night band images are providing researchers with valuable data for a wide variety of previously unseen or poorly seen events. The new, higher resolution composite image of Earth at night was released at a news conference at the American Geophysical Union meeting in San Francisco. But the VIIRS day-night band can better detect and resolve Earth's night lights. Defense Meteorological Satellite Program have been making observations with low-light sensors for 40 years. The new sensor, the day-night band of the Visible Infrared Imaging Radiometer Suite (VIIRS), is sensitive enough to detect the nocturnal glow produced by Earth's atmosphere and the light from a single ship in the sea.
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