Arnt Eliassen


Premio Balzan 1996 per la meteorologia


ARNT ELIASSEN, nato il 9 settembre 1915 a Oslo, è cittadino norvegese.
Ph.D. all’Università di Oslo (1950); Meteorologo all’Istituto Meteorologico Norvegese (1942); Ricercatore all’Istituto di Ricerche Climatologiche dell’Accademia delle Scienze Norvegese (1952); Lecturer (1953) e Professore di Geofisica all’Università di Oslo (1958);
Visiting Scientist a Chicago, Princeton (Institute of Advanced Study), Los Angeles (UC) e Boston (MIT).
Ha ricevuto molti riconoscimenti ed è membro di numerose società e accademie scientifiche fra le quali la Deutsche Akademie der Naturforscher Leopoldina (1970) e della US National Academy of Science (1991).

Fra i suoi lavori più importanti citiamo:
— 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

(Ottobre 1996)