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ABSTRACT Hydroclimatic teleconnection between hydrologic variables and large-scale atmospheric circulation phenomena is being studied worldwide and gaining more and more interest in recent years due to its potential use in hydrologic time series analysis and forecasting. In this paper a review of such related work is presented. First, characteristics of major large-scale atmospheric circulation phenomena from tropical Pacific Ocean and Indian Ocean region are explained. El Niño-Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) mode from tropical Pacific Ocean and Indian Ocean respectively are selected and their global influences on hydrologic variables through hydroclimatic teleconnection are elaborated. Potential predictive power of such large-scale indices for hydrologic variables is explained based on the established research work across the world. Research opportunities, in this direction, are then explained in Indian perspective. A preliminary analysis is also presented in this regard. Predictive potential of such large-scale indices is of immense use to water resources community.
Maity et al. (Mon,) studied this question.