Plane-mounted camera detects hazardous volcanic ash in the air
Wednesday, December 14th, 2011A new invention out of Norway promises to keep the skies of the world open. When a volcano in Iceland erupted in 2010, it spewed out invisible clouds of ash that spread across Europe – effectively shutting down all civilian and military air traffic, stranding millions of people and costing the world economy billions of dollars. Now, a new camera has been developed that will allow pilots to see and avoid volcanic dust clouds, making similar eruptions in the future much less disruptive.
Enter Australian Fred Prata of the Norwegian Institute for Air Research (NILU). Under funding from Easyjet airlines, Prata has developed AVOID (Airborne Volcanic Object Imaging Detector). Based on technology originally designed for Earth-orbiting satellites and built by Nicarnica Aviation, his wing-mounted infrared camera closes the gap between the volcano and the computer model without having to build expensive fleets of sample planes. Since it works in the infrared range of the light spectrum. AVOID can see the ash particles in day or night up to 60 miles (100 km) away and when combining what it sees with air speed and GPS data, it can display ash concentrations in real time. Since the ash is in plumes and clumps, AVOID can tell planes where to fly safely even in conditions produced by the 2010 eruption.
But the really clever thing about AVOID is that it isn’t intended to be used in special meteorological aircraft. It’s meant to be mounted on ordinary airplane wings, so airliners can look out for themselves. In this way, a continental disaster can be reduced to a local problem.
After previous experiments with volcanoes in Japan and the Mariana Islands as well as during the 2010 eruption, AVOID has undergone extensive testing recently, including 10 days guiding a light aircraft through the ash plumes from Italy’s Mount Etna. Easyjet was so impressed with the result of their investment that they are installing AVOID on 20 of their Airbus aircraft in 2012 and will make the technology available to other airlines. It may not keep volcanoes from exploding, but it does make the aftermath a little easier to deal with.







