Open AccessSpectral analysis of drought index (Palmer) for India
Author(s) -
K. Nageswara Rao,
Casella George,
P. E. MORAY,
Nawzer Mehta
Publication year - 1973
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v24i3.5157
Subject(s) - climatology , index (typography) , spectral analysis , character (mathematics) , geography , physical geography , meteorology , mathematics , geology , physics , world wide web , computer science , geometry , quantum mechanics , spectroscopy
Values of (Palmer’s) drought index computed for 23 sub-divisions of India for a period of about 60 years have been examined by power spectrum method. Very few of the peaks are significant as 95 percent level though persistence in the some sub-divisions is indicated. No definite periodicity could be recognized in these series and even the oscillatory character noted in some of them need further critical examination.