Fujita scale
Escala Fujita-Pearson
- Date
- 1971 · confidence high
- Place
- University of Chicago, Chicago, Illinois, United States
- Credited to
- Ted Fujita and Allen Pearson
- Field
- Knowledge & symbols
What it is
Fujita devised an F0-to-F5 scale to classify tornado intensity by the structural damage they cause, conceptually linking the Beaufort scale with Mach numbers. In 1973 Pearson added path-length and path-width parameters; decades later, once the original wind-speed estimates were found to be too high, it was replaced by the Enhanced Fujita Scale (2007).
What it led to
- Addition of path parameters by Pearson (1973)
- Enhanced Fujita Scale (2007)
Built on
- Beaufort wind force scale1805
- Mach numbers