Monsoon rainfall and its variability in Godavari river basin |
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Authors: | G Nageswara Rao |
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Institution: | (1) Atmospheric Science Centre, Department of Meteorology and Oceanography, Andhra University, 530 003 Visakhapatnam, India |
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Abstract: | Rainfall variability over a river basin has greater impact on the water resource in that basin. With this in view, the variability
of the monsoon rainfall over the Godavari river basin has been studied on different time scales. As expected, the monsoon
rainfall in Godavari basin is more variable (17%) than the all-India monsoon rainfall (11%) during the period of study (1951–90).
Similarly, inter-annual variability of the monsoon rainfall on smaller time scales is found to be still higher and increases
while going on from seasonal to daily scales. An interesting observation is that the intra-seasonal variability of the monsoon
rainfall has a significant negative relationship (CC= −0.53) with the total seasonal rainfall in the basin. |
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Keywords: | Monsoon rainfall inter-annual and intra-seasonal variability water resource management |
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