Open AccessPower spectra of large-scale disturbances of the Indian southwest monsoon
Author(s) -
R. N. Keshavamurty
Publication year - 1973
Publication title -
mausam
Language(s) - English
Resource type - Journals
ISSN - 0252-9416
DOI - 10.54302/mausam.v24i2.5115
Subject(s) - monsoon , troposphere , climatology , zonal and meridional , atmospheric sciences , spectral line , scale (ratio) , geology , meteorology , environmental science , geography , physics , cartography , astronomy
The period, wavelength and vertical structure of the different types of monsoon disturbances have been studied by applying the technique of power and cross spectrum analysis to wind data over the Indian region.
The spectra of the meridional component of wind show dominant peaks around 15-20 days and 5'-6 days in the lower troposphere and 7-9 days in the middle and upper tropospheres, These as shown to correspond to known monsoon disturbances.