Accession Number : ADA113003

Title :   Low-Order Models of Atmospheric Circulations,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METEOROLOGY AND PHYSICAL OCEANOGRAPHY

Personal Author(s) : Lorenz,Edward N

PDF Url : ADA113003

Report Date : Feb 1982

Pagination or Media Count : 45

Abstract : Low-order models (LOM's), which are systems of ordinary differential equations which have been simplified by extreme reduction of the number of dependent variables, are often capable of representing atmospheric processes in a qualitatively correct manner. With a LOM it is generally possible to obtain a much more extended time-dependent solution, or a much larger ensemble of solutions, than would be economically feasible with a larger model. A general procedure for constructing LOM's is described. A selection of LOM's is presented, to illustrate the many forms which these models may take and the many uses to which they may be put. The step-by-step construction of a LOM is illustrated with a model of the large-scale circulation of a moist atmosphere.

Descriptors :   *ATMOSPHERIC MOTION, METEOROLOGICAL DATA, ATMOSPHERE MODELS, SYNOPTIC METEOROLOGY, TIME DEPENDENCE, EQUATIONS OF MOTION, WEATHER FORECASTING, MOISTURE, WIND

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE