Accession Number : AD0678211

Title :   SPECTRAL ATMOSPHERIC ENERGETICS DURING JANUARY 1959.

Descriptive Note : Final rept. 1 Mar 65-30 Jun 68,

Corporate Author : MCGILL UNIV MONTREAL (QUEBEC) ARCTIC METEOROLOGY RESEARCH GROUP

Personal Author(s) : Paulin,Gaston

Report Date : JUL 1968

Pagination or Media Count : 336

Abstract : The energetics of January 1959 are assessed through a set of spectral energy equations developed for an open atmospheric system. The investigation considers two sets of data: a mid-January five-day set with a high vertical resolution of 10 levels (1000 to 10 mb) and the full month's data at three levels (500, 100 and 25 mb). The diagnostic omega-equation is solved in Fourier spectral form and diabatic radiative effects are included for the stratosphere. Strong dynamical interactions between the troposphere and the stratosphere are found in wave numbers, 1, 2 and 4: this is associated with geopotential, flux, whose convergence is mainly responsible for increases in stratospheric activity. The major 25-mb eddy changes are related to wave one and two oscillations in the 500 mb block. Non-linear wave interactions also yield significant modifications in the eddy energies. The daily spectral energetics are discussed systematically to explain the observed energy fluctuations. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, POWER SPECTRA), PERIODIC VARIATIONS, FOURIER ANALYSIS, DIURNAL VARIATIONS, STRATOSPHERE, INTERACTIONS, TROPOSPHERE, MATHEMATICAL MODELS, ATMOSPHERIC TEMPERATURE, TURBULENCE, KINETIC ENERGY, HEAT TRANSFER, OSCILLATION, CORRELATION TECHNIQUES, METEOROLOGY, CANADA

Subject Categories : Atmospheric Physics
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE