Johannes Letzmann

Johannes Peter Letzmann (19 July 1885 – 21 May 1971) was an Estonian meteorologist, and a pioneering tornado researcher. His prolific output related to severe storms concepts included: developing tornado damage studies, atmospheric vortices, theoretical studies and laboratory simulations, tornado case studies, and observation programs. It generated extensive analysis techniques and insights on tornadoes at a time when there was still very little research on the subject in the United States.

Johannes Letzmann
Born(1885-07-19)19 July 1885
Wenden, Livonia
now Cēsis, Latvia
Died21 May 1971(1971-05-21) (aged 85)
Langeoog, West Germany
NationalityBorn Russian
later Estonian
later German
Alma materUniversity of Tartu
University of Helsinki
Known forTornado damage analysis
Scientific career
FieldsMeteorology
InstitutionsUniversity of Tartu
University of Graz
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