AWARDEE OF EARTH SCIENCE PRIZE

CHEN JUNYONG

Abstract

Chen Junyong, geodesiest, was born in May, 1933 in Shanghai, China.Dr. Chen was graduated from the Department of Astro-geodesy, Wuhan's Technical University of Surveying and Mapping (WTUSM) in 1960 and graduated from the same institute as a graduated student in 1968.  He received his Ph.D. of Science and Technology in Graz Technical University, Austria, in 1981.
1959-1974, assistant at WTUSM; 1974-1982, researcher in Academy of Surveying and Mapping, Beijing; 1982-1994, Chief Engineer of State Bureau of Surveying and Mapping (SBSM), China; 1994-President of Science and Technology Committee of SBSM, and Special Advisor of SBSM.
Dr. Chen is   a   member of Chinese Academy of Sciences since 1991, and the Guest Professor of WTUSM, Tongi and Qinghua University.
He was the vice president, president of Chinese Association of Surveying and Mapping (1983-1994); the vice president, section president of International Association of Geodesy (IAG) (1984-1995).  He is now the president of Chinese Committee for IUGG (1998-2001), the Bureau Member of International Union of Geodesy and Geophysics (IUGG) (1995-1999).
Dr. Chen is the expert in the fields of geometric geodesy, satellite geodesy, earth gravity field and geodynamics.  The whole set of computation formula for “Geodetic Reference System 1980” erived was adopted up to now by IUGG.  The computation for the determination of the height of Mt.  Qomolangma (Mt. Everest, the world highest peak), gravity field parameters, climate parameters and atmospheric refraction in its adjacent area is under his technical guidance.It is pointed out that the special behaviors of the crustal movement in the area, i.e. the boundary belt of the two plates-Eurasian and Indian, may have some internal relationship with the periodical seismic in China.  The transformation parameters between local and global geodetic coordinate systems is measured and computed for the civil use under his direction.  The distribution wide area differential GPS technique for China is proposed, studied and tested by a research group headed by him, and it is valuable for navigation, and special suitable for the capacity of China  now.
In recent decades the improvement and newly establishment of the geodetic bases for Chinese surveying and mapping are carried out under his technical guidance.  For example, 3D geocentric coordinate system, relevelling against the systematic errors, Chinese gravity basic network, longitude basic network, calibration site for aero-photography, length calibration field site and so on, have been obtained and completed.
Dr. Chen has published 130 papers and 10 works.