International Journal of Environmental Sciences

Volume 6 Issue 6 2016- May 2016 Pages: 1036 - 1046 <<Previous    Next>>

Meteorological drought assessment in Mumbai city using standardized precipitation index (SPI)

Author Information:

Sangita Mishra S1, Gaikwad Sonal2, Konar Mahalaxmi3, Chaskar Priyanka4
1- Assistant Professor, 2, 3, 4- Undergraduate students Department of Civil Engineering, School of Engineering and Technology, AIKTC, Navi Mumbai, Maharashtra, India

ABSTRACT

Mumbai is a highly populated island city which experiences tropical wet-dry climate i.e. a wet season (June-September) and a prolonged dry season. During non-monsoon months, various lakes in Mumbai (Modak Lake, Sagar Lake, Tansa Lake, Vihar Lake, Tulsi Lake, Bhatsa Lake and middle vaitarna) that are the major sources of water, becomes dry resulting in lower water availability of the huge population of Mumbai city. Even in monsoon months, the abrupt variation of rainfall and temperature fluctuations leads to water scarcity and subsequent drought conditions. This project has been taken up to analyze rainfall variation and also to assess the intensity of water scarcity and drought conditions in the Mumbai region. The Standardized Precipitation Index (SPI) was chosen to quantify drought periods in this study because it is spatially invariant in its interpretation and can specify dry and wet periods simultaneously. An intensive analysis using other meteorological parameters besides rainfall could help in better interpretation of drought conditions in Mumbai and also could also be helpful for management of the water resources in Mumbai city.

Keywords: Meteorological drought, Mumbai, SPI, water scarcity

DOI:10.6088/ijes.6097

© 2016 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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