Julius von Hann

Julius Ferdinand von Hann ( born March 23, 1839 Castle House in Wartberg ob der Aist (Upper Austria ); † October 1, 1921 in Vienna) is considered the founder of modern meteorology.

Life

Hann attended high school in Krems Cathedral and studied mathematics, chemistry and physics at the University of Vienna. He laid in 1864 from teaching certificate in mathematics and physics and was 1865-1868 teacher at the upper secondary schools in Vienna and Linz. 1865 was conferred on it by Carl Jelinek, the editors of the magazine for Meteorology. This prompted the later appeal Hanns as a temporary adjunct at the Imperial Central Institute for Meteorology and Geomagnetism. In 1868 he completed his habilitation at the University of Vienna and was appointed in 1873 as an associate professor of physical geography.

From 1877 to 1897 Hann was director of the Central Institute for Meteorology in Vienna. On his initiative, created in 1886, the observatory on the Sonnblick and 1891, named after him Hann waiting on the Hochobir. Hann was 1897-1900 Professor of Meteorology at the University of Graz and from 1900 to 1910 professor of Cosmic Physics at the University of Vienna. Also in 1910 he was elevated by Emperor Franz Joseph in the Austrian hereditary peerage.

His method of different weighting of measured values ​​is in mathematics as a Hann window known ( see Window function). Since 1872 he was a corresponding member since 1877 and real of the Academy of Sciences in Vienna. Since 1877, Hann was a corresponding honorary member of the Society of Natural Sciences Emden. Even the Royal Society of Sciences in Uppsala (since 1881), the Kungliga Vetenskaps -och Vitterhetssamhället i Göteborg (since 1882) and the Royal Swedish Academy of Sciences (since 1906), he belonged to.

Julius von Hann died at the age of 82 years. He was the brother of the monument conservationist Franz Gustav Hann.

In 1924 in Vienna Dobling ( 19th district ) of Hann square was named after him.

Awards and honors

Writings

  • The earth as a whole. Your atmosphere and hydrosphere, 1872
  • The Earth as a cosmic body. Your atmosphere and hydrosphere. Astronomical Geography, Meteorology and Oceanography, 1884
  • Handbook of Climatology, 1883
  • Handbook of climatology, 2nd edition. Bd.I: General Climatology, 1897
  • Handbook of climatology, Vol.II: Special climatology. I.Abt. Climate of the Tropical Zone, 1897
  • Handbook of climatology, Bd.III: Klimatographie. II.Teil: climate of the temperate zones and polar zones, 1911
  • Handbook of climatology, 4th Edition; fashioned by Karl Knoch. Bd.I: General Klimalehre, 1932
  • Atlas of Meteorology, 1887
  • Textbook of Meteorology, 1st edition 1901, 2nd edition 1906
  • The daily range of temperature in the inner tropics, 1905
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