Examples of use of vtd
1. They‘ll use a technique called velocity track display (VTD), originally developed for hurricane studies, that allows scientists to extract three–dimensional wind information from a single Doppler radar.
2. The scientists have already used VTD with DOW data to analyze a large and intense tornado that struck Mulhall, Okla., in 1'''. They discovered a central downdraft, similar to the eye of a hurricane, surrounded by a ring of updrafts blowing at near–hurricane force, with multiple small vortices rotating around this ring.