ABOUT THE COURSE: Watershed Hydrology is the branch that focuses on studying water flow and storage on the Earth's surface, such as in rivers, lakes, and wetlands. It involves analysing various processes that influence surface water, including precipitation, evaporation, infiltration, and runoff. Understanding watershed hydrology is essential for managing water resources, assessing flood risks, and maintaining water quality for human consumption and environmental preservation. Hydrologists can develop models to predict and mitigate the impacts of floods, droughts, and environmental changes on water availability and ecosystems by analysing the interactions between various landforms, soils, vegetation, and climate within a watershed. Hydrologists use various tools and techniques to monitor and model the movement of surface water, allowing for informed decision-making and sustainable water management practices.INTENDED AUDIENCE: Students studying Agricultural Engineering, Environmental Science, Hydrology, Civil Engineering, or related disciplines at the undergraduate or early graduate level. Professionals in water resources management, environmental consulting, or government agencies are involved in water management and conservation.INDUSTRY SUPPORT: Water Resource Management Agencies, Environmental Consulting Firms,Civil Engineering and Infrastructure Companies, Agriculture and Irrigation Industries, Environmental NGOs, Urban Planning and Development Firms
Watershed Hydrology
Indian Institute of Technology, Kharagpur and NPTEL via Swayam
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Overview
Syllabus
Week 1 : Hydrological cycle, Precipitation and its forms. Rainfall measurement and estimation of mean rainfallWeek 2: Rainfall frequency analysis, exercise on frequency analysis, Mass curve, exercise on mass curveWeek 3:Hyetograph, Depth Area Duration curve, Intensity Frequency Duration curve, exercise on DAD, IFDWeek 4: Hydrologic processes-interception, Infiltration - factors influencing, measurement and indices, Evaporation - estimation and measurementWeek 5: Runoff - factors affecting, measurement, Stage - discharge rating curve, estimation of peak runoff rate and volume, Rational method, Cook's method and SCS curve number methodWeek 6:Hydrograph - components, base flow separation, unit hydrograph theory, S-curve, Synthetic hydrograph, applications and limitations, Exercise on runoff hydrograph , Exercise on unit hydrograph, Exercise on synthetic hydrographWeek 7:Exercise on computation on infiltration indices. Computation of peak runoff and runoff volume by Cook's method and rational formula. Computation of runoff volume by SCS curve number method.Week 8: Drain basin characteristic, Geomorphology of watersheds - Linear, aerial and relief aspects of watersheds - stream order, drainage density and stream frequency, exercise on geomorphic parameters of watersheds.Week 9:Hydrological modeling - concept, protocol and classification, Model calibration, validation and sensitivity analysisWeek 10:Floods - terms and definitions head water flood control - methods, flood peak, design flood and computation of probable floodWeek 11:Flood routing - channel and reservoir routing, exercise on flood routingWeek 12:Drought - classification causes and impacts drought management strategy.
Taught by
Prof. Rajendra Singh
