Josef Graw (physicist)

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Josef Graw (born September 21, 1907 in Sommerfeld, East Prussia , † June 23, 1986 ) was a German physicist.

Life

Between 1931 and 1933, Graw developed an improved radiosonde as a research assistant and revolutionized weather forecasting .

In 1938 Graw founded the Dr. Graw measuring instruments in Berlin and developed, with its initials JG provided, weather probes and radiosondes , as the Graw H-48 , Graw H-50 and Graw M-60 (Morse probe). In 1938/39 he developed the Kölzer Graw probe , which enabled a division into troposphere and stratosphere . He developed the Graw sector , which converted readings in a drum to Morse code; this became the Grawsche Morse code in 1942 .

In 1976 he sold his company to Horst Schmidmer, who continued the company as GRAW Radiosondes GmbH & Co. KG in Nuremberg.

Graw was a member of the Catholic student association KDSt.V. Borusso-Saxonia Berlin in the CV .

Web links

Individual evidence

  1. ↑ Journal for Geophysics, Volume 12, 1966, page 306
  2. ^ "The GRAW DFM-06 radiosonde" , accessed on March 1, 2011
  3. ↑ Fritz Poske : "The sea border protection 1951-1956: memory, report, documentation", Bernard & Graefe 1982, page 257
  4. ^ "Company history GRAW" , accessed on April 17, 2018
personal data
SURNAME Graw, Josef
BRIEF DESCRIPTION German physicist
DATE OF BIRTH September 21, 1907
PLACE OF BIRTH Sommerfeld, East Prussia
DATE OF DEATH June 23, 1986