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Master the Concepts and Methods of Hydrology and Water Resources Engineering with SK Garg's Book (Free PDF Download)

Hydrology And Water Resources Engineering Sk Garg Pdf Download

Are you looking for a comprehensive and authoritative book on hydrology and water resources engineering? Do you want to learn about the hydrologic cycle, the methods of analysis and design, and the applications of statistics, probabilities and groundwater hydrology? If yes, then you should definitely check out SK Garg's book on this topic.

Hydrology And Water Resources Engineering Sk Garg Pdf Download

In this article, we will tell you everything you need to know about this book, including what it covers, who is the author, and how you can download it for free in PDF format. We will also give you some tips and precautions for downloading the book safely and legally. So, let's get started!

What is hydrology and water resources engineering?

Hydrology is the science that deals with the occurrence, distribution, movement, and properties of water on Earth. It studies the various aspects of the hydrologic cycle, such as precipitation, infiltration, evaporation, streamflow, groundwater flow, etc. It also analyzes the effects of human activities on water resources, such as irrigation, drainage, flood control, water supply, hydropower, etc.

Water resources engineering is the branch of civil engineering that applies the principles of hydrology to design, construct, operate, and manage water-related infrastructure and systems. It involves planning, developing, utilizing, and conserving water resources for various purposes. Some examples of water resources engineering projects are dams, reservoirs, canals, pipelines, wells, pumps, treatment plants, etc.

Who is SK Garg and why is his book important?

SK Garg is a renowned Indian author and professor of civil engineering. He has written several books on various topics related to civil engineering, such as irrigation engineering, environmental engineering, soil mechanics, etc. He has also received many awards and honors for his contributions to the field of engineering education and research.

One of his most popular books is Hydrology And Water Resources Engineering. This book was first published in 1985 and has been revised and updated several times since then. It is widely used as a textbook by students and teachers of civil engineering in India and abroad. It is also a valuable reference for practicing engineers and researchers working in the field of water resources.

The book covers all the topics related to hydrology and water resources engineering in a systematic and comprehensive manner. It illustrates all the terms of the hydrologic cycle and discusses the possible ways of their estimation. It also explains the methods of hydrologic analysis and design with examples from field data. It covers both surface water hydrology and groundwater hydrology with equal emphasis. It also includes chapters on statistics, probabilities, and stochastic processes in hydrology.

The book is written in a simple and lucid language that makes it easy to understand for readers of all levels. It contains numerous figures, tables, diagrams, charts, graphs, etc. that enhance the clarity and presentation of the concepts. It also provides solved examples, exercises, and problems at the end of each chapter to test the understanding and application of the concepts. It also includes appendices that provide useful data and information on various topics related to hydrology and water resources engineering.

Hydrologic Cycle and Processes

The hydrologic cycle is the continuous movement of water between the atmosphere, the land, and the oceans. It is driven by the energy from the sun and the gravity of the earth. It involves various processes such as precipitation, infiltration, evaporation, transpiration, runoff, etc. These processes are interrelated and affect each other in various ways. Let's look at each of these processes in detail.


Precipitation is the process by which water in the form of rain, snow, hail, sleet, etc. falls from the clouds to the earth's surface. It is the main source of water for the hydrologic cycle. The amount and distribution of precipitation depend on various factors such as temperature, humidity, wind, pressure, topography, etc. Precipitation can be measured by instruments such as rain gauges, snow gauges, radar, etc.


Infiltration is the process by which water seeps into the soil from the surface. It is influenced by factors such as soil type, soil moisture, vegetation cover, land use, etc. Infiltration reduces the amount of runoff and increases the amount of groundwater recharge. Infiltration can be estimated by methods such as Darcy's law, Horton's equation, Green-Ampt equation, etc.


Evaporation is the process by which water changes from liquid to vapor due to the absorption of heat from the sun or other sources. It occurs from various sources such as oceans, lakes, rivers, soil, plants, etc. Evaporation is affected by factors such as temperature, humidity, wind speed, solar radiation, etc. Evaporation can be measured by instruments such as evaporation pans, lysimeters, eddy covariance systems, etc.


Streamflow is the flow of water in a natural or artificial channel such as a river, stream, canal, etc. It is the result of runoff from precipitation and groundwater discharge. Streamflow is an important component of the hydrologic cycle as it transports water and nutrients from one place to another. Streamflow can be measured by devices such as weirs, flumes, current meters, etc.

Hydrologic Analysis and Design

Hydrologic analysis and design are the methods of applying the principles and concepts of hydrology to solve various problems related to water resources engineering. They involve estimating and predicting the hydrologic variables such as precipitation, runoff, streamflow, flood, etc. for a given area or basin. They also involve designing and evaluating the performance of water-related structures and systems such as dams, reservoirs, canals, pipelines, etc.

Some of the common methods of hydrologic analysis and design are:


A hydrograph is a graph that shows the variation of streamflow or runoff with respect to time at a given point or section of a channel. It is used to study the characteristics and behavior of streamflow or runoff for a given basin or watershed. It can also be used to estimate various parameters such as peak flow, base flow, lag time, time of concentration, etc.

Flood estimation

Flood estimation is the method of determining the magnitude and frequency of floods for a given area or basin. Floods are caused by excessive rainfall or snowmelt that exceeds the infiltration and storage capacity of the soil and results in runoff. Floods can cause damage to life and property and hence need to be estimated and controlled. Flood estimation can be done by methods such as rational method, unit hydrograph method, frequency analysis method, etc.

Flood routing

Flood routing is the method of determining the changes in flood characteristics such as depth, velocity 71b2f0854b


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