THE BEHAVIOR OF THE MEAN ENERGETIC LEVEL IN TIME AND SPACE - THEORETICAL BACKGROUND AND BASIC CHARACTERISTICS

The behaviour of the mean energetic level (MEL) in space and time is i nvestigated. The basic meteorological quantities (pressure, height, de nsity) and the quantities, playing an important role at the MEL were c omputed over Europe and the North Atlantic for a 1-year period on the basis of 500 and 300 hPa height and temperature data. The daily maps p rove the MEL to be consistent both in time and space. The means, and a mplitudes and phases of the annual variation of the quantities at the MEL are presented. It is shown that neglecting the influence of the lo w tropopauses (below 300 hPa) does not affect the computations signifi cantly.