Open AccessEffect of smoothing initial height field on vertical motion
Author(s) -
U.S. SINGH,
H. S. RATHOR
Publication year - 1978
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v29i1.2871
Subject(s) - diabatic , baroclinity , smoothing , geostrophic wind , adiabatic process , vertical velocity , geodesy , magnitude (astronomy) , horizontal and vertical , meteorology , geology , atmospheric sciences , climatology , mechanics , physics , mathematics , statistics , astronomy , thermodynamics
The adiabatic and diabatic vertical velocities at 800, 600 and 400 mb surfaces were computed 4-1evel geostrophic baroclinic model over the Indian region. The 8moothing of initial height field in time and space following Shuman's technique has been done at each of the four levels 900, 700, 500 and 300 mb. The vertical velocities ccmputed by using smoothed and unsmoothed height data have been compared.
It has been found that smoothing of the initial height field reduces the magnitude of diabatic vertical velocity much more than the magnitude of adiabatic vertical velocity.