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AIRS Near-Real Time Data Shows Icelandic Volcano Still Very Active
AIRS Near-Real-Time imagery shows substantial new eruptions of Eyjafjallajökull; Ash wake stretches hundreds of miles south-east
As of this moment on May 7, the Atmospheric Infrared Sounder (AIRS) gives hints that air-travelers may need to brace themselves for another round of European airports closures. AIRS Near-Real-Time visible radiance data was used to produce the false color images below. They reveal that in the last couple of days, the Icelandic volcano, Eyjafjallajökull, showed little intention to stop showing a temper and released another series of very respectable ash clouds. The image from May 7, shows a magnificent ash wake from the volcano, which, however, may turn into a bad news to airports downwind.
May 7, 2010
May 6, 2010
The images shown are snapshot from a GoogleEarth screen view. Even though AIRS is not truly an imager, the Near-Real Time (NRT) processing and the developed Web Map Services at NASA/Goddard Earth Sciences Data and Information Services Center (GES DISC) make images based on AIRS visible radiances available on a global map at 3-km resolution, just a couple of hours following the satellite overpass. As soon as AIRS visible radiances become available from the NRT production, they are mapped to a global 3-km false-color map, and are served through our AIRS Web Map Server (WMS). A significant advantage of this approach is that anyone with WMS-compliant tool on their desktop computers, such as Google Earth, can easily overlay AIRS data with other layers of information, and zoom into their region of interest.