Most models working at coarser resolutions can’t actually see simulated tornadoes, inferring them instead based on areas of air with a lot of spins. Atmospheric scientist Leigh Orf of the University of Wisconsin-Madison has taken advantage of advances in supercomputing to build 10-meter-resolution models that can directly simulate tornadoes. At this scale, turbulence comes alive, Orf says. His models reveal how small areas of rotation could combine to kick off a tornado. “It fully resolves non-tornadic vortices that merge together in ways that are very compelling, and I’ve never seen before,” he says.
University Communications