Open AccessVariability of south west monsoon rainfall in West Bengal : An application of principal component analysis
Author(s) -
Pijush Basak
Publication year - 2014
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v65i4.1201
Subject(s) - principal component analysis , monsoon , climatology , west bengal , bengal , geography , environmental science , period (music) , geology , bay , oceanography , mathematics , statistics , physics , socioeconomics , sociology , acoustics
The principal component analysis is utilized to understand the spatial and temporal variability of monsoonal rainfall. The southwest monsoon rainfall data of West Bengal, situated over 21 stations widely spread over the state, has been analyzed for a period of 60 years for inter-annual variations. A coherent subset of 8 north and 13 south stations has been studied separately to produce statistically significant inter-annual signals. It is observed that the above/below transition is quite significant both for station rainfalls and principal components for state-wise and coherent zone analysis.