A time series analysis of the global atmospheric pressure

Authors

  • B. M. MISRA Indian Institute of Tropical Meteorology, Pune – 411008, India

DOI:

https://doi.org/10.54302/mausam.v24i3.5156

Abstract

12 GMT surface pressure data for 188 stations for the IGY period have been analysed as a time series, The first difference filter has been utilised in order to eliminate the low frequency trend in the series. Mean periodicities in the pressure tendency oscillations are computed. All the stations show values scattered between 4 and 5 days. The tendency series are the subjected to power spectrum analysis, which brings out the peas in the period range of 4-5 days, Cross-spectrum analysis Oil stations arranged in the order of increasing longitude shows that the oscillations result from a westward propagating pressure wave with zonal wavelength equal to the latitude circle.

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Published

01-07-1973

How to Cite

[1]
B. M. . MISRA, “A time series analysis of the global atmospheric pressure”, MAUSAM, vol. 24, no. 3, pp. 251–256, Jul. 1973.

Issue

Vol. 24 No. 3 (1973): MAUSAM

Section

Shorter Contribution

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