Open AccessEnergetics of the monsoon circulation over south Asia :Part -I Diabatic heating and the generation of available potential energy
Author(s) -
Sriram K. Rajamani
Publication year - 1985
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v36i1.1573
Subject(s) - diabatic , climatology , eddy , monsoon , troposphere , zonal flow (plasma) , atmospheric sciences , energetics , geology , environmental science , trough (economics) , circulation (fluid dynamics) , potential energy , meteorology , geography , physics , mechanics , turbulence , adiabatic process , thermodynamics , plasma , macroeconomics , quantum mechanics , economics , tokamak
Considering the monsoon circulation as the mean zonal flow with standing or stationary eddies (monsoon trough etc) and the transient eddies (monsoon depressions, lows etc) supermposed on it, diabatic heating and generation of available potential energy over south Asia have been computed for the typical monsoon month of July 1963, based on the computations of vertical velocity from omega-equation, and thermodynamic energy equation.
Regions of upward vertical velocity are found to be areas of good rainfall. Rate of monthly mean diabatic heating in the troposphere is of the order of 0.5 deg. C and is. higher at 500 and 300 mb levels than at lower levels. Positive generation of both zonal and standing eddy available potential energy is inferred.