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You are here:Open notes-->Anna-University-->CE-2021-HYDROLOGY

# How to study this subject

OBJECTIVE
At the end of the semester, the student shall be having a good understanding of all the
components of the hydrological cycle. The mechanics of rainfall, its spatial and temporal
measurement and their applications will be understood. Simple statistical analysis and
application of probability distribution of rainfall and run off shall also be understood. Student will
also learn simple methods of flood routing and ground water hydrology.
UNIT I PRECIPITATION 9
Hydrologic cycle – Types of precipitation – Forms of precipitation – Measurement of Rainfall –
Spatial measurement methods – Temporal measurement methods – Frequency analysis of
point rainfall – Intensity, duration, frequency relationship – Probable maximum precipitation.
UNIT II ABSTRACTION FROM PRECIPITATION 9
Losses from precipitation – Evaporation process – Reservoir evaporation – Infiltration process –
Infiltration capacity – Measurement of infiltration – Infiltration indices – Effective rainfall.
UNIT III HYDROGRAPHS 9
Factors affecting Hydrograph – Baseflow separation – Unit hydrograph – Derivation of unit
hydrograph – S curve hydrograph – Unit hydrograph of different deviations - Synthetic Unit
Hydrograph
UNIT IV FLOODS AND FLOOD ROUTING 9
Flood frequency studies – Recurrence interval – Gumbel’s method – Flood routing – Reservoir
flood routing – Muskingum’s Channel Routing – Flood control
UNIT V GROUND WATER HYDROLOGY 9
Types of aquifers – Darcy’s law – Dupuit’s assumptions – Confined Aquifer – Unconfined
Aquifer – Recuperation test – Transmissibility – Specific capacity – Pumping test – Steady flow
analysis only.
TOTAL: 45 PERIODS
TEXT BOOKS:
1. Subramanya, K., “Engineering Hydrology”, Tata McGraw-Hill Publishing Co., Ltd., 2000
2. Raghunath, H.M., “Hydrology”, Wiley Eastern Ltd., 2000
REFERENCES:
1. Chow, V.T. and Maidment, “Hydrology for Engineers”, McGraw-Hill Inc., Ltd., 2000
2. Singh, V.P., “Hydrology”, McGraw-Hill Inc., Ltd., 2000.

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