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Download Engineering Hydrology by K. Subramanya PDF

Hydrology means the science of water. It is the science that deals with the occurrence, circulation and distribution of water of the earth and earth’s atmosphere.

As a branch of earth science, it is concerned with the water in streams and lakes, rainfall and snow-fall, snow and ice on the land and water occurring below the earth’s surface in the pores of the soil and rocks. In a general sense, hydrology is a very broad subject of an inter-disciplinary nature drawing support from allied sciences, such as meteorology, geology, statistics, chemistry, physics and fluid mechanics.

Download Engineering Hydrology by K. Subramanya PDF
Download Engineering Hydrology by K. Subramanya PDF 

Hydrology is basically an applied science. To further emphasis the degree of applicability, the subject is sometimes classified as

  • Scientific Hydrology – the study which is concerned chiefly with academic aspects. 
  • Engineering & Applied Hydrology – A study concerned with engineering applications

In a general sense engineering hydrology deals with (i) estimation of water resources, (ii) the study of processes such as precipitation, runoff, evapotranspiration and their interaction and (iii) the study of problems such as floods and droughts, and strategies to combat them.

This book is an elementary treatment of engineering hydrology with descriptions that aid in a qualitative appreciation and techniques which enable a quantitative evaluation of the hydrologic processes that are of importance to a civil engineer.

Title of the Book

Engineering Hydrology Third Edition

Author of the Book

By Dr. K. Subramanya
From Indian Technology, Kanpur

Content of the Book

1. Introduction
a. Introduction
b. Hydrologic Cycle
c. Water Budget Equation
d. World Water Balanace
e. History of Hydrology
f. Applications in Engineering
g. Sources of data
2. Precipitation
a. Introduction
b. Forms of Precipitation
c. Weather Systems for Precipitation
d. Characteristics of Precipitation in India
e. Measurement of Precipitation
f. Rainguage Network
g. Preparation of Data
h. Presentation of Rainfall Data
i. Mean Precipitation over an area
j. Depth-Area Duration Relationships
k. Frequency of Point Rainfall
l. Maximum Intensity-Duration-Frequency relationship
m. Probable Maximum Precipitation
n. Rainfall Data in India
3. Abstraction from Precipitation
a. Introduction
b. Evaporation process
c. Evaporimeters
d. Empirical Evaporation Equations
e. Analytical Methods of Evaporation Estimation
f. Reservoir Evaporation and Methods for its reduction
g. Transpiration
h. Evapotranspiration
i. Measurement of Evapotranspiration
j. Evapotranspiration Equations
k. Potential Evapotranspiration Over India
l. Potential Evapotranspiration (AET)
m. Incerption
n. Depression Storage
o. Infiltration
p. Infiltration Storage
q. Measurement of Infiltration
r. Modeling Infiltration capacity
s. Classification of Infiltration Capacities
t. Infiltration Indices
4. Streamflow Measurement
a. Introduction
b. Measurement of Stage
c. Measurement of Velocity
d. Area-Velocity method
e. Dilution Technique of Streamflow Measurement
f. Electromegnatic Method
g. Ultrasonic method
h. Indirect Methods
i. Stage-Discharge Relationship
j. Extrapolation of Rating Curve
k. Hydrometry Stations
5. Runoff
a. Introduction
b. Hydrograph
c. Runoff Characteristics of Streams
d. Runoff Vollume
e. Flow-Duration Curve
f. Flow Mass curve
g. Sequent Peak Algorithm
h. Droughts
i. Surface Water Resources of India
6. Hydrographs
a. Introduction
b. Factors affecting flood hydrograph
c. Components of a hydrograph
d. Base flow separation
e. Effective Rainfall (ER)
f. Unit Hydrograph
g. Derivation of unit Hydrographs
h. Unit Hydrographs of Different Durations
i. Use and Limitations of Unit Hydrographs
j. Duration of the unit hydrographs
k. distribution of the unit hydrograph
l. distribution graph
m. synthetic unit hydrograph
n. instantaneous unit hydrograph
7. Floods
a. Introduction
b. Rational Method
c. Empirical Formulae
d. Unit Hydrograph method
e. Floor Frequency Studies
f. Gumbel’s Method
g. Log-Pearson Type III Distribution
h. Partial Duration Series
i. Regional Floor Frequency Analysis
j. Data for Frequency Studies
k. Design Flood
l. Design Storm
m. Risk, Reliability and Safety Factor
8. Flood Routing
a. Introduction
b. Basic Equation
c. Hydrologic Storage Routing (Level Pool Routing)
d. Attenuation
e. Hydrologic Channel Routing
f. Hydraulic method of Flood Routing
g. Routing in conceptual hydrograph development
h. Clark’s Method for IUH
i. Nash’s Conceptual Method
j. Flood Control
k. Flood Control in India
9. Groundwater
a. Introduction
b. Forms of subsurface water
c. Aquifer properties
d. Geologic Formations as Aquifers
e. Compressibility of Aquifers
f. Equation of Motion
g. Wells
h. Steady flow into a well
i. Open wells
j. Unsteady flow in a confined aquifer
k. Well loss
l. Specific gravity
m. Recharge
n. Groundwater resource
o. Groundwater monitoring network in India
10. Erosion and Reservoir Sedimentation
a. Introduction
b. Erosion Processes
c. Estimation of Sheet Erosion
d. Channel Erosion
e. Movement of Sediment from Watershed
f. Sediment yield from Watersheds
g. Trap Efficiency
h. Density of Sediment Deposits
i. Distribution of Sediment in the reservoir
j. Life of a reservoir
k. Reservoir Sedimentation control
l. Erosion and Reservoir Sedimentation Problems in India

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About author

Saad is a civil engineer by profession and love to explore innovative ideas relevant to construction, civil engineering, and home improvement. He loves writing about concrete, DIY guides, home improvement tips, technologies, and more.
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