Field Tests Show High Degree of Accuracy for Plumes in Siberian Sea Believed to be Clouds Tornado-Prediction Technique Developed at North A National Oceanic and Atmospheric Administra- Carolina State University tion (NOAA) investigation of massive atmospheric North Carolina State University (NCSU) research- plumes, which appear periodically on satellite pictures ers have field tested a technique for tornado detection as eruptions from the east Siberian Sea, concludes that will possibly predict almost 90% of the tornado- that the plumes are clouds—they are not streams of spawning thunderstorms with as much as a 30-min to methane gas escaping from the seafloor, as scientists 2-h warning before the tornado actually occurs. previously believed. The technique, known as DOTT (detection of tor- Analysis of data and air samples taken during a nadic thunderstorms), employs frequent weather-sat- research aircraft penetration of the plume showed that ellite feeds and computer modeling, using key weather the plume originated two miles above Bennett Island data that have been targeted as predictors of this in the east Siberian Sea, not at the surface, according storm type. to Russell Schnell of NOAA's Climate Monitoring and Charles Anderson, an NCSU professor of marine, Diagnostics Laboratory in Boulder, Colorado. earth, and
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Oct 1, 1992
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