Identifying tornadoes using Doppler radar

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Presentation transcript:

Identifying tornadoes using Doppler radar Elaina Cooley EECS 622: Final Project

What I need to know Gradient Doppler velocities are used to find the vortex signature of a tornado Beam Width Resolution volume size – Can’t be too large or too small. Has to be “Just right” Reflectivity of hydrometeors Drop size distribution Wind velocity

Thunderstorm structure http://www.gridgit.com/post_tornado-supercell-diagram_509673/

Thunderstorm structure http://www.gridgit.com/post_tornado-supercell-diagram_509673/

Rainfall Rates Measured drop size distributions for various rain fall rates

Wind velocity Can’t see air Volume Backscattering – Rain Scattering Models Linear wind velocity model http://foxprovidence.com/weather-2/severe-weather/storm-ready-severe-weather-resource-guide/tornadoes-straight-line-winds/

Bibliography http://www.gridgit.com/post_tornado-supercell-diagram_509673/ http://foxprovidence.com/weather-2/severe-weather/storm-ready-severe-weather-resource- guide/tornadoes-straight-line-winds/ Dr. Allen’s Slides

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