Rudolf Eyfrig

Rudolf Eyfrig (born December 1, 1911 in Eibenstock ; † May 31, 2011 in Gottenheim ) was a German physicist and ionospheric researcher.

Life

After graduating from high school, Rudolf Eyfrig began studying technical physics at the Technical University of Munich in 1936 . He wrote his diploma thesis on the subject of "The electrical resistance of ceramic bodies at high temperatures". From 1937 he worked as an assistant at the Physics Institute of the Technical University of Munich at the Herzogstand experimental station . Under the guidance of Jonathan Zenneck , he received his doctorate in 1940 with a thesis "On echo measurements in long-distance transmissions and their relationship to zenith reflections". rer. nat.

Until the station was closed, he worked at the test station at the Herzogstand and researched the various propagation paths of short waves. From 1947 to 1953 he worked in the Service de prévision ionosphérique in Neuershausen , until 1956 in Neuf-Brisach (Alsace). He then worked until 1964 at the Ionosphere Institute of the Deutsche Bundespost in Breisach am Rhein . Until his retirement in 1976 he was employed at the Central Telecommunications Office in Darmstadt.

From 1969 to 1976 he was managing director of the German URSI state committee ( Union Radio Scientifique Internationale ). Rudolf Eyfrig had been married since 1939 and lived with his family in Gottenheim.

Fonts

Books

• About long-distance echo measurements and their relationship to zenith reflections . Becker & Erler, Leipzig 1940.
• More recent findings in meteorological fluid dynamics. Ionospheric measurements at the Herzogstand experimental station in 1943 (with Ludwig Prandtl ). Oldenbourg, Munich 1944.
• Ionospheric Pulse Transmission over Large Distances: Identification of Traces (with Karl Rawer ). Defense Technical Information Center, Cambridge, MA 1961.

editor

• The state of the ionosphere during the Northern Lights on May 25-26 January 1938 after the observations of the experimental station at the Herzogstand (with Georg Goubau , Th. Netzer and Jonathan Zenneck). High frequency and electroacoustics, 1938.
• On the question of the continental effect of the F2 layer . Pure and Applied Geophysics, 1940.
• About the appearance of the abnormal E-layer of the ionosphere in 1942 . Writings of the German. Ak. Luftf.-Research, 1942.
• A new form of presentation of ionospheric results . Communication from the Ferdinand Braun Institute, 1944.
• On the question of the daily rate of electron concentration in the F2 layer of equatorial stations . Natural Sciences, 1950.
• The worldwide behavior of the height of the F2 layer (with E. Harnischmacher and Karl Rawer). Pure and Applied Geophysics, 1956
• The Herzogstand experimental station, the cradle of German ionospheric research . Kleinheubacher Reports, Research Institute of the Deutsche Bundespost, Darmstadt 1975.
• Secular increase of F2 peak altitude at northern temperate latitudes (with Karl Rawer). Advances in Space Research, 2001.
• Improving the M (3000) -h F2 relation (with Karl Rawer). Advances in Space Research, 2004.