Introduction: Background, aims, objectives and scopes. River hydrology-An introduction: Importance of river hydrology, features and characteristics, impact of climate variability on hydrology. River morphometry: Salient features, drainage basin characteristics, stream order, stream length, water retention within drainage area, streamflow. Indo-Pacific climate variability: Definition, characteristic and impact of different types of climate variability of Indo-Pacific basins. Indian Ocean Dipole and River Hydrology: Backgrounds, methods and approaches of downscaling, DMI Index and relevance, Case study of Citarum river of Indonesia. ENSO Modoki and River hydrology: Backgrounds, methods and approaches of Downscaling of Modoki, EMI Index and relevance, case study of Paranaiba river of Brazil. Monsoon and river hydrology: Features and characteristics, Monsoon Index and relevance, Case study from Mahanadi river of India. Streamflow predictability: processes and methods, data sources, use of tools, predictability and societal uses. Conclusion.
