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Relationships between Rainy Days, Mean Daily Intensity and Seasonal Rainfall in Normal, Flood and Drought Years over India


doi: 10.1007/s00376-998-0012-x

  • There are limitations in using the seasonal rainfall total in studies of Monsoon rainfall climatology. A correlation analysis of the individual station seasonal rainfall with all India seasonal mean rainfall has been made. After taking the significance test (strictly up to 5% level) the stations which are significantly correlated have been considered in this study in normal, flood and drought years respectively. Analysis of seasonal rainfall data of 50 stations spread over a period of 41 years suggests that a linear relationship fits better than the logarithmic relationship when seasonal rain-fall versus number of rainy days is studied. The linear relationship is also found to be better in the case of seasonal rainfall versus mean daily intensity.
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Manuscript History

Manuscript received: 10 July 1998
Manuscript revised: 10 July 1998
通讯作者: 陈斌, bchen63@163.com
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Relationships between Rainy Days, Mean Daily Intensity and Seasonal Rainfall in Normal, Flood and Drought Years over India

  • 1. Centre for Atmospheric Sciences, Indian Institute of Technology, Hauz Khas, New Delhi-110016, India

Abstract: There are limitations in using the seasonal rainfall total in studies of Monsoon rainfall climatology. A correlation analysis of the individual station seasonal rainfall with all India seasonal mean rainfall has been made. After taking the significance test (strictly up to 5% level) the stations which are significantly correlated have been considered in this study in normal, flood and drought years respectively. Analysis of seasonal rainfall data of 50 stations spread over a period of 41 years suggests that a linear relationship fits better than the logarithmic relationship when seasonal rain-fall versus number of rainy days is studied. The linear relationship is also found to be better in the case of seasonal rainfall versus mean daily intensity.

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