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Analysis of the Statistical Behaviour of Daily Maximum and Monthly Rainfall Data at New Delhi During Monsoon Period


doi: 10.1007/s00376-002-0076-y

  • A statistical analysis of monthly mean and daily maximum rainfall data at New Delhi during the monsoon (June-September) period 1940-1980 is presented. It has been observed that a good correlation exists between the monthly and daily maximum rainfall. A linear regression analysis of the data is found to be significant for all the four months. Some key statistical parameters like the mean values of Coefficient of Variability (CV), Relative Variability (RV) and Percentage Interannual Variability (PIV) have been studied and found to be at variance. However, their corresponding ratios between mean daily maximum and mean monthly rainfall are significantly lower.
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Manuscript History

Manuscript received: 10 May 2002
Manuscript revised: 10 May 2002
通讯作者: 陈斌, bchen63@163.com
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Analysis of the Statistical Behaviour of Daily Maximum and Monthly Rainfall Data at New Delhi During Monsoon Period

  • 1. Centre of Energy Studies, Indian Institute of Technology Hauz Khas, New Delhi-110 016. India,Centre of Energy Studies, Indian Institute of Technology Hauz Khas, New Delhi-110 016. India,Centre of Energy Studies, Indian Institute of Technology Hauz Khas, New Delhi-110 016. India

Abstract: A statistical analysis of monthly mean and daily maximum rainfall data at New Delhi during the monsoon (June-September) period 1940-1980 is presented. It has been observed that a good correlation exists between the monthly and daily maximum rainfall. A linear regression analysis of the data is found to be significant for all the four months. Some key statistical parameters like the mean values of Coefficient of Variability (CV), Relative Variability (RV) and Percentage Interannual Variability (PIV) have been studied and found to be at variance. However, their corresponding ratios between mean daily maximum and mean monthly rainfall are significantly lower.

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