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2018 | OriginalPaper | Chapter

Changes in ENSO and IOD Effects on the Extreme Rainfall of Hyderabad City, India

Authors : V. Agilan, N. V. Umamahesh

Published in: Climate Change Impacts

Publisher: Springer Singapore

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Abstract

The global physical processes such as El Niño-southern oscillation (ENSO) and Indian Ocean dipole (IOD) have a significant impact on Indian extreme rainfall. Recent studies show that the impact of ENSO cycle on Indian rainfall has changed. Therefore, understanding the changes in the effects of these physical processes on extreme rainfall of an urban area may help us to reduce the damage caused by urban floods. In this study, the changes in ENSO and IOD effects on the Hyderabad city monsoon/non-monsoon extreme rainfall between 1901–1950 and 1951–2004 are analyzed. The findings of this study indicate that the effect of IOD on non-monsoon months’ extreme rainfall of the Hyderabad city is significantly reduced while there is no significant change in monsoon season relationship. In addition, a significant increase in ENSO effects on non-monsoon months’ very extreme rainfall of the Hyderabad city is observed.

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Title: Changes in ENSO and IOD Effects on the Extreme Rainfall of Hyderabad City, India
Authors: V. Agilan
N. V. Umamahesh
Publisher: Springer Singapore
Book: Climate Change Impacts
Print ISBN: 978-981-10-5713-7

Electronic ISBN: 978-981-10-5714-4

Copyright Year: 2018
DOI: https://doi.org/10.1007/978-981-10-5714-4_7