Reinhard Bortfeld

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Reinhard Bortfeld

Reinhard Bortfeld (born February 25, 1927 in Belgern ; † July 10, 2019 in Hanover ) was a German geophysicist .

Career

He grew up in Annaburg ( Torgau ), and came after the Second World War to Göttingen , where he mathematics studied, 1950, the State Examination took off and in 1951 received his doctorate . Bortfeld worked for many years as a geophysicist in industry, from 1952 to 1962 with Mobil Oil AG in Celle , then until 1975 with Prakla-Seismos in Hanover and finally until 1980 with Shell in The Hague . In 1980 he accepted a call to a full professor for geophysics at the Technical University Clausthal , and at the same time became director of the institute for geophysics there, where he retired in 1992. Bortfeld was married to Monika Bortfeld since 1960 and is the father of son Thomas and daughter Julia.

Contributions to geophysics

With his mathematical work, Bortfeld had a lasting influence on the field of applied seismics . He is best known for the Bortfeld approximation of the Zöppritz equations , named after him , which for the first time enabled a physical interpretation of the reflection coefficients of seismic waves . He is therefore considered a pioneer of the amplitude-vs-offset method, which after further developments has played an essential role in locating deposits . As head of the data center at Prakla-Seismos, he promoted the use of computers in exploration geophysics. During his time in Clausthal-Zellerfeld he was responsible for processing the seismic reflection data of the German Continental Reflection Program (DEKORP) (Meissner and Bortfeld 1990) and dealt with the application of geometric ray optics in seismics. In doing so, he laid the foundation for further work by subsequent generations of geophysicists (Hubral 2002). Bortfeld received the Conrad Schlumberger Award in 1960 and the Reginald Fessenden Award in 1989 for his work .

The funeral service took place in the chapel of the Engesohde town cemetery .

Fonts

  • Approximations to the reflection and transmission coefficients of plane longitudinal and transverse waves , Geophysical Prospecting, 1961
  • Geometrical ray theory: Rays and traveltimes in seismic systems (second-order approximations of the traveltimes) , Geophysics 54 (3): 342-349, 1989
  • R. Meissner and RK Bortfeld. DECORP – Atlas. Results of German Continental Reflection Seismic Program , Springer, Berlin-Heidelberg, 1990.

Web links

Individual evidence

  1. ↑ a b Compare the family's obituary on the Süddeutsche Zeitung page of July 20, 2019
  2. ↑ Peter HUBRAL: Reinhard Bortfeld. In: Biography Citation for the Reginald Fessenden Award. Society of Exploration Geophysicists Wiki, accessed July 25, 2019 .
  3. ↑ Peter HUBRAL: Reinhard Bortfeld, Reflections seismics . Ed .: European Association of Geoscientists and Engineers. Reprint Series No. 1st edition. 2002, ISBN 90-73781-22-1 .
  4. ↑ History of the institute. Institute for Geophysics TU Clausthal, accessed on July 25, 2019 .
  5. ↑ R. Bortfeld: Approximations to the reflection and transmission coefficients of plane longitudinal and transverse waves , Geophysical Prospecting, 1961, v.9 no. 4, 485-503.
  6. ^ Bortfeld equation. In: Subsurface Wiki . Retrieved July 25, 2019 .
  7. ↑ AB Weglein: What Can Inverse Scattering Really Do For You Today? In: Geophysical Inversion. J. Bee Bednar, 1992, accessed July 25, 2019 . , Page 25
  8. ^ Organization of PRAKLA January 1, 1969. (PDF) In: Prakla Seismos Rundschau issue 34. PRAKLA Society for Practical Storage Research GmbH, 1969, accessed on July 25, 2019 .
  9. ↑ R. Bortfeld: Geometrical ray theory: Rays and traveltimes in seismic systems (second-order approximations of the traveltimes) . In: Geophysics . tape 54 , no. 3 , 1989, pp. 342-349 .
  10. ^ Past Winners of the Conrad Schlumberger Award. European Association of Geoscientists and Engineers, accessed July 25, 2019 .
  11. ^ Recipients of the Reginald Fessenden Award. In: Reginald Fessenden Award. Society of Exploration Geophysicists, accessed July 25, 2019 .
personal data
SURNAME Bortfeld, Reinhard
BRIEF DESCRIPTION German geophysicist
DATE OF BIRTH February 25, 1927
PLACE OF BIRTH Belgians
DATE OF DEATH July 10, 2019
Place of death Hanover