Arnt Eliassen

1996 Balzan Prize for Meteorology

For his fundamental contributions to dynamic meteorology that have influenced and stimulated progress in this science during the past fifty years.

ARNT ELIASSEN was born in Oslo on September 9, 1915; he is a Norwegian citizen,
obtained his Ph.D. (1950) at the University of Oslo; Meteorologist at the Norwegian Meteorological Institute (1942); Scientist at the Institute of Weather and Climate Research, Norwegian Academy of Science (1952); Lecturer (1953) and Professor (1958) of Geophysics at the University of Oslo; Visiting Scientist in Chicago, Princeton (Institute of Advanced Study), Los Angeles (UC), Boston (MIT).
Awards, Member and Honorary Member of many scientific Societies and Academies, as the Deutsche Akademie der Naturforscher Leopoldina (1970) and the US National Academy of Science (1991).

Some of his major publications are:
— On the motion of the air over a mountain ridge. Meteor. Anualer, 1, No. 5, 1942;
— The quasi-static equations of motion with pressure as independent variable. Geof. Publ., 17, No. 3, 1949;
—A numerical method for predicting the perturbations of the middle latitude westlies (con J.G. Charney). Tellus, 1,No. 1, 1949;
— Slow thermally or frictionally controlled meridional circulation in a circular vortex. Astrophysica Norvegica, 5, p.19, 1951;
— Provisional Report on calculation of spatial covariance and autocorrelation of the pressure field. Vidensk.-Akad.Inst. for Vaer- og Klimaforskning, Rapport No. 5, 1954;
— Dynamic meteorology (con E. Kleinschmidt jr.). In Handbuch der Physik, 5. Flügge, ed.; Springer, 1957;
— On the formation of fronts in the atmosphere. The Rossby Memorial Volume, New York, 1959;
— On the transfer of energy in stationary mountain waves (con E. Palm). Geof. Publ., 22, No. 3, 1961;
— A numerical integration experiment with a six-level atmospheric model with isentropic information surfaces (con E. Raustein). Met. Ann., 5, No. 11, 1970;
— The Ekman layer of a circular vortex. A numerical and theoretical study (con Magne Lystad). Geof. Publ. 31, No.7, 1977;
—Entropy coordinates in atmospheric dynamics. Zeitschrift für Meteorologie, 37, 1-11, 1987;
—A method pioneered by Jerome Namias: Isentropic analysis and its aftergrowth. Scripps Institution of Oceanography Reference Series 86-87. (Namias Symposium), 70-81, 1986;
— The interface method for calculating the temporal evolution of a two-fluid system (con Ragnar Fjortoft, 1992). Frontiers of Science, Ann. New York Acad. Sci., 661, 54-78.

(October 1996)

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