Horst Montag (geodesist)

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Horst Montag (born February 18, 1938 in Hildebrandshausen ) is a German geodesist and professor of satellite geodesy who primarily deals with global problems of the dynamics of the earth's body.

Live and act

Career

Monday attended elementary school in Hildebrandshausen and then switched to secondary school in Dingelstädt / Eichsfeld, which he graduated from high school in 1956. From 1956 to 1962 he studied geodesy at the Technical University of Dresden and graduated with a thesis in the field of geodetic astronomy as a graduate engineer . He then started working at the Geodetic Institute Potsdam (GIP) as a scientific assistant . Here he worked on his dissertation and was awarded a doctorate in engineering from the TU Dresden in 1967 . At the Central Institute for Physics of the Earth (ZIPE), he obtained his PhD B (Dr. sc. Techn.) In 1983 . In 1985 he was appointed Professor of Satellite Geodesy by the President of the Academy of Sciences of the GDR . In 1991 he acquired the teaching qualification for the field of satellite geodesy at the TU Dresden and received the academic degree Dr.-Ing. habil.

Scientific activity

At the GIP, Monday initially dealt with various problems of length and inclination measurement technology as well as the application possibilities of the new laser measurement technology in geodesy.

At the Central Institute for Physics of the Earth ( academy reform), which was created in 1969 from the merger of various geo-institutes , Montag continued his work in the newly established area of geodesy and gravimetry . In 1978 he took over the management of the satellite geodesy department . After the fall of the Wall, the ZIPE became the GeoForschungszenrum Potsdam (GFZ), which officially began its activities in 1992. Montag continued his scientific work here. In 1996 he moved to the Anhalt University of Applied Sciences in Dessau, where he was appointed professor for satellite geodesy and land surveying . In addition to some studies, he mainly devoted himself to teaching in the subjects of satellite geodesy, land surveying, deformation analysis and physical geodesy .

Montag promoted the international cooperation necessary for his research, even under difficult conditions. He used his membership in international commissions and working groups such as the International Association of Geodesy ( IAG ), the International Union of Geodesy and Geophysics ( IUGG ), the Committee on Space Research ( COSPAR ) and Interkosmos . Longer research stays in various countries (Soviet Union, USA, Finland, China, Austria, etc.) as well as lectures or lecture series also served for this purpose. He is the author of numerous specialist publications.

Research priorities

His first major research area in the GIP concerned the investigation of recent earth crust movements, in particular on the basis of long-term level observations and mareograph registrations of the southern Baltic Sea coast (8 stations, from Travemünde to Pillau , series of measurements in some cases more than 100 years). The results showed an increase in mean sea level; they were an early reference to the problem of climate change that had become very topical years later . The increase in the mean sea level of 1.0 mm / year (period 1856–1962) determined for the Warnemünde gauge was used as a reference value for connecting the map of recent vertical earth crust movements in the GDR.

Further studies concerned a. the modeling of the gravity field . and questions of the new sub-discipline marine geodesy. From 1969 his main field of work was satellite geodesy. At first, in addition to satellite observations at the Potsdam station (initially photographic, later with laser), the focus was on geometric satellite geodesy . One result was u. a. the determination of large-scale direction vectors.

Soon after, Montag switched to dynamic satellite geodesy and began the long-term development of a computer program for the high-precision orbit determination of artificial earth satellites as a basis for deriving geodetic and geodynamic parameters. These include in particular the pole movements, earth rotation fluctuations, the geocenter and globally distributed station coordinates in a geocentric three-dimensional coordinate system. The results gained a high international reputation.

With his team he participated u. a. on the international MERIT project (Monitoring of Earth Rotation and Intercompare the Techniques of observation and analysis) with laser measurements and data analysis. With the Potsdam computer program (POTSDAM-…), the ZIPE functioned as an international analysis center for the MERIT project and the subsequent annual analyzes. The results for the earth rotation parameters and station coordinates contributed to the realization of the new international earth rotation service IERS , which in 1988 replaced the classic service based on astronomical observations. Temporal changes in the earth's rotation parameters (polar movements, day length) and the station coordinates ( plate tectonics ) are derived with high accuracy from the annual realizations . They are an important contribution to the monitoring of the system earth with its diverse changes up to climatic fluctuations. The more detailed investigation of the dynamics of the earth's body requires, in addition to the laser measurements to satellites, further cosmic-geodetic and geoscientific measurement methods. In this sense, Montag is co-initiator of a global network of geodynamic fundamental stations with complex measurement methods within the framework of the IUGG .

Publications (selection)

  • Determination of recent level shifts from long-term water level observations on the southern Baltic coast. Work of the Geodetic Institute Potsdam, Potsdam No. 15, 139 p., 1967. (Dissertation)
  • Mareographs and their importance for continental height networks . In: Geodetic and geophysical publications, Series III, Issue 29, Berlin 1973, pp. 33–45
  • Applications of lasers in geodesy . In: Vermessungstechnik , Berlin, 16th year 1968, issue 9, pp. 339–342 u. Issue 10, pp. 377-384
  • with K. Arnold, D. Schoeps, N. Georgiev: The determination of the direction vector Riga-Sofia from observations of the satellite Echo 1 . Publication of the Central Institute for Physics of the Earth, No. 8, Potsdam 1971, 60 pp.
  • For the investigation of geodynamic parameters with the help of satellite observations . In: Geodetic and geophysical publications, series 3, issue 39, Berlin 1978, pp. 101-102
  • To investigate the earth's rotation vector with the help of laser distance measurements to artificial earth satellites. Publ. D. Central Institute for Earth Physics, No. 80, Potsdam 1984, 129 pp. (Doctorate B)
  • For monitoring the rotational behavior of the earth and other geodynamic phenomena by means of cosmic geodetic methods . In: Vermessungstechnik , Volume 34, Issue 8, Berlin 1986, pp. 260–263
  • Horst Montag et al .: Analysis of the satellite distance measurements of the MERIT project to determine precise earth rotation parameters . Publication of the Central Institute for Physics of the Earth No. 91, Potsdam 1986, 81 pp.
  • as ed. with C. Reigber: Geodesy and Physics of the Earth. Geodetic Contributions to Geodynamics . IAG Symosia No. 112, Springer Verlag Berlin, Heidelberg 1993, ISBN 978-3-540-56572-7
  • with C. Reigber: On the history of geodesy in the Berlin area . German Geodetic Commission, Series E, Issue 25. Frankfurt 1996, pp. 79–88
  • On relativistic effects in satellite and spatial geodesy . In: Meeting reports Leibniz-Sozietät, Vol. 78/79, Berlin 2005, pp. 277–290
  • Reference systems for global measurements and geodynamic investigations using geodetic spatial methods . In: Meeting reports Leibniz-Sozietät, Vol. 96, Berlin 2008, pp. 165–177
  • with II Mueller, C. Reigber, P. Wilson: An IUGG Network of fundamental geodynamic reference and calibration stations - Rationale and recommendations . CSTG Bulletin, No. 12, Munich 1996, pp. 75-94
  • Sea level and earth rotation vector. Two modern research directions with origin in the Central European degree measurement and international earth measurement . Meeting reports Leibniz-Sozietät, vol. 118, Berlin 2014, pp. 203–214

literature

  • Men an women of destinction. Fourth Edition 1992/93, Hartnolls, Cambridge UK
  • Kürschner's German Scholars Calendar 1996, Medicine, Natural Sciences, Technology, Walter de Gruyter-Verlag, Berlin, New York, 1996
  • Joachim Höpfner: Horst Monday for his 70th birthday. Personal appreciation. In: Zeitschrift für Vermessungswesen , Volume 133, Issue 1, 2008, pp. 68–69

Web links

Individual evidence

  1. ↑ Anhalt University of Applied Sciences: Prof. Dr. Horst Monday. Retrieved April 4, 2020 .
  2. ↑ Professor Dr. Horst Monday. In: German Research Foundation (DFG). Retrieved April 4, 2020 .
  3. ^ GIP history History of the Geodetic Institute Potsdam. Accessed April 2, 2020 (pdf)
  4. ↑ Horst Montag: Investigation of the electronic dragonfly "Talyvel" . In: Vermessungstechnik , Berlin, 12th year 1964, issue 11, pp. 419–422
  5. ↑ Possible uses of the LASER in geodesy . In: Vermessungstechnik , Berlin, 16th year 1968, issue 9, pp. 339–342 u. Issue 10, pp. 383-3
  6. ↑ Horst Montag: Some results of Investigation of geocenter motion by satellite methods . Transactions AGU, Vol. 78, No, 46, San Francisco 1997
  7. ↑ Horst Montag: Thoughts on the fascinating development of geodesy since the 1950s . In: Meeting reports Leibniz-Sozietät, Berlin 2004, vol. 70, pp. 13–24
  8. ↑ Horst Montag: On relativistic effects in satellite and spatial geodesy . In: Meeting reports Leibniz-Sozietät, Berlin 2005, Vol. 78/79, pp. 277–290
  9. ↑ Horst Montag: Reference systems for global measurements and geodynamic investigations using geodetic spatial methods . In: Meeting reports Leibniz-Sozietät, Berlin 2008, vol. 96, pp. 165–177
  10. ↑ Horst Monday: Determination of recent level shifts from long-term water level observations on the southern Baltic coast. Work of the Geodetic Institute Potsdam, Potsdam 1967.
  11. ^ Horst Montag: Recent Level Dislocations on the southern shore of the Baltic Sea . Annales Academiae Scientiarum Fennicae, Helsinki 1966, Ser. AIII. 90, 1966, pp. 291-298
  12. ↑ Horst Montag: On the accuracy of determination of secular variations of Mean Sea Level at the Baltic Sea coast . Report on the Symposium on Coastal Geodesy, Munich 1970, pp. 285-296
  13. ↑ Horst Montag: Mareographs and their importance for continental height networks . In: Geodetic and geophysical publications, Series III, Issue 29, Berlin 1973, pp. 33–45
  14. ↑ Horst Montag: The water levels at the Warnemünde gauge and the reference level of recent vertical crust movements derived from them. In: Petermanns Geographische Mitteilungen , Gotha, 109th year, 1965, pp. 137-139
  15. ^ K. Arnold, H. Montag: The activity of Potsdam Group on West Alp area of ​​SSG 5.16 . Travaux de Association International de Geodesie, Tome 23, Paris 1968, pp. 383-385
  16. ↑ Horst Montag: Status and development tendencies in marine geodesy . In: Vermessungstechnik , Berlin, year 19, 1971, no. 8, pp. 281–285
  17. ↑ K. Arnold, D. Schoeps, N. Georgiev, H. Montag: The determination of the direction vector Riga-Sofia from observations of the satellite Echo 1 . Publication of the Central Institute for Physics of the Earth, No. 8, Potsdam 1971, 60 pp.
  18. ↑ Horst Montag: Programmnyi complex POTSDAM-3 dlja issledovanija po dinamiceskoi sputnikovoi geodezii (Russian). Publication series Nabljudenija iskusstvennych sputnikov Zemli, No. 16, Sofia 1977
  19. ↑ G. Gendt, H. Montag: Orbital computations by means of the POTSDAM-5 program system and application . Advances in Space Research, Pergamon Press, Oxford, 1986, Vol. 6. No. 5, pp. 143-150
  20. ↑ Horst Montag: To investigate geodynamic parameters with the help of satellite observations . In: Geodetic and geophysical publications, series 3, issue 39, Berlin 1978, pp. 101-102
  21. ^ Horst Montag: On the investigation of geodynamic parameters by means of laser measurements . Publication of the Central Institute of Physics of the Earth No. 63, Potsdam, 1981, pp. 416-423
  22. ↑ Horst Montag: For the definition and monitoring of the parameters of the International Terrestrial Reference System ITRF with special attention to the variations of the geocenter . In: Zeitschrift für Vermessungswesen, Volume 123, Issue 7, 1998, pp. 215–222
  23. ↑ Horst Montag: Some results of Investigation of geocenter motion by satellite methods . Transactions AGU, Vol. 78, No, 46, San Francisco 1997
  24. ↑ H. Montag, G. Gendt, W. Wehmann: Derivation of polar movements and changes in the rotation of the earth from laser distance measurements of the MERIT short campaign to the satellite Lageos . In: Vermessungstechnik , Volume 30, Issue 5, Berlin 1982, pp. 158–162
  25. ↑ Horst Montag: To monitor the rotational behavior of the earth and other geodynamic phenomena by means of cosmic geodetic methods . In: Vermessungstechnik , Volume 34, Issue 8, Berlin 1986, pp. 260–263
  26. ^ Horst Montag et al .: Analysis of the satellite distance measurements of the MERIT project to determine precise earth rotation parameters . Publication of the Central Institute for Physics of the Earth No. 91, Potsdam 1986, 81 pp.
  27. ↑ Horst Montag: Use of satellite geodesy for determination of geodetic and geodynamic parameters . Advances in Space Research, Pergamon Press Oxford, 1989, Vol. 9. No.1, pp. 41-49
  28. ^ II Mueller, H. Montag, C. Reigber, P. Wilson: An IUGG Network of fundamental geodynamic reference and calibration stations - Rationale and recommendations . CSTG Bulletin, No. 12, Munich 1996, pp. 75-94
personal data
SURNAME Monday, Horst
BRIEF DESCRIPTION German geodesist and university professor
DATE OF BIRTH February 18, 1938
PLACE OF BIRTH Hildebrandshausen