A proposed classification system for tornadic convective systems

Erin E Jones, Purdue University

Abstract

A taxonomy for tornadic convective systems is proposed that identifies tornadic convective systems as being forced by tropical, subtropical, or extratropical cyclones, or by no synoptic scale weather system. Tornadic convective systems are then classified according to the size and nature of their convection on Doppler radar and are called single cell, multicell, or mesoscale convective systems. It is explained that the adoption of such a classification system in the recording of tornadic events in Storm Data would provide some meteorological information to tornado reports, as the different types of potentially tornadic storms identified tend to form in different environmental conditions. Examples of each of the identified tornadoes and tornadic storms are then presented, along with a recommendation that a discussion take place on the refinement and adoption of a classification system for tornadic convective systems in Storm Data. The adoption of the proposed classification system, or a similar classification system, would help to establish a more meaningful tornado climatology, which would help scientists to identify any trends in tornadoes and tornadic storms with climate change, and to identify any deficiencies in our understanding of these phenomena.

Degree

M.S.

Advisors

Agee, Purdue University.

Subject Area

Atmospheric sciences

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