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Automatische Übersetzung:
Doppler on Wheels inventor Joshua Wurman monitors a severe thunderstorm in the Texas Panhandle on June 13, 2010. Called "the DOW" for short, the portable radar truck was one of several research vehicles that participated in VORTEX 2, an unprecedented two-year science project to study tornadoes in the United States in 2009 and 2010.