Hydrology is the scientific study of water, including its distribution, movement, and properties. It encompasses the occurrence, distribution, movement, and properties of water in the atmosphere, on the Earth’s surface, and underground. Hydrologists analyze various aspects of water, such as rainfall, snowmelt, river flow, groundwater, and water quality, to understand the behavior of water in different environments.
Table of Content
Introduction to Geography
- What is Geography
- Introduction to Physical Geography
- Realms of the physical environment
- Introduction to Hydrology
- Hydrologic Cycle
- The Global Water Budget
- Practical Application
- Historical Development
Atmospheric Water
- Introduction
- Cloud Formation
- Generation of Precipitation
- Precipitation Types
- Measuring Precipitation
- Areal Precipitation
- Evaporation Types and Measurement
- Estimating Evaporation: Penman-Montieth
Ground Water
- Introduction
- Misconceptions
- Drilling a hole
- Bernoulli to the aid
- Aquifers
- Effective infiltration velocity and infiltration rate
- The Soil as a Web Sponge
- Brothers in Science: Darcy and Ohm
- refracting the Water
- Keep it Simple and Confined
- Continuity and its Consequences
- Going Dutch
- Flow nets
- Groundwater Flow Regines and Systems
- Fresh and Saline: Ghijben-Herzberg
- Groundwater Hydraulics
Soil Water
- Introduction
- Negative Water Pressures
- Determining the Total Potential
- The Soil as a Dry Filter Paper or a Wet Sponge
- The Soil Moisture Characteristic
- Drying and Wetting: Hysteresis
- Unsaturated Water Flow
- Moving up: capillary rise and evaporation
- Moving down: infiltration and percolation
- Preferential Flow
Surface Water
- Introduction
- Bernoulli Revisited
- Measuring Stage, Water Velocity, and Discharge
- Hydrograph Analysis
- Conceptual Rainfall-Runoff Models
- Variable Source Area Hydrology
Hydrometeorology
- Introduction
- Constituents of the Atmosphere
- Vertical Structure of the Atmosphere
- Solar Radiation
- The General Circulation
- Transitory System
- Formation of Precipitation
- Types of Precipitation
- Forms of Precipitation
- Climate and Weather Seasons in India
- Meteorological Observations
Probability and Statistics
- Introduction
- Probability and Random Variable
- Distribution Functions
- Selection of Distribution Function and Estimation of Parameters
- Frequency Analysis
- Correlation
- Regression Analysis
The Catchment
- Introduction
- Stream Patterns
- Description of Basin
Precipitation
- Introduction
- Measurement of Precipitation
- Non-recording Raingauges
- Recording Raingauges
- Radar Measurement of Rainfall
- Errors in Measurement of Rainfall
- Location of Raingauge
- Analysis and Interpretation of Rainfall
- Rainfall Mass Curve and Rainfall Hyetography
- Intensity-Duration Analysis
- Intensity-Frequency-Duration Analysis
- Average Depth of Precipitation Over an Area
- Depth-Area-Duration Analysis
- Estimation of Missing Precipitation Records
- Double Mass Curves
- Probable Maximum Precipitation (PMP)
- Raingauge Network
- Annual Rainfall USA
- Snowfall
Streamflow Measurement
- Introduction
- Measurement of Stage
- Discharge Measurement by Area—Velocity Method
- Discharge Measurement by Moving-Boat Method
- Discharge Measurement by Other Method
- Stage-Discharge Relations
- Extension of Rating Curve
- Selection of a Stream Gauge Site
- Stream Gauging Network
- Stage and Discharge Hydrograph
- Units of Stream Flow
Evaporation and Evapotranspiration
- Introduction
- Evaporation Process
- Factors Affecting Evaporation
- Estimation of Evaporation
- Measurement of Evaporation
- Reducing Evaporation from Water Surfaces
- Transpiration
- Evapotranspiration
Infiltration
- Introduction
- Factors Affecting Infiltration Capacity
- Annual and Seasonal Changes in Infiltration Capacity
- Measurement of Infiltration
- Infiltrometers
- Hydrography Analysis
- Infiltration Equations
- Infiltration Indices
- Initial Abstractions
Ground Water
- Introduction
- Occurrence of Groundwater
- Aquifer Parameters
- Groundwater Movement
- Steady Radial Flow to Wells
- Unsteady Radial Flow to a Well in a Confined Aquifer
- Unsteady Flow to a Well in Unconfined Aquifer
- Effects of Boundaries on Groundwater Movement
- Groundwater Exploration
- Safe Yield
- Yield of an Open Well
Runoff
- Introduction
- Component of Runoff
- Factors Affecting Runoff
- Basin Yield
- Rainfall-Funoff Relationship
- Flow-Duration Curve
- Flow-Mass Curve
- Assessment of Surface Water Resources of USA
Hydrograph Analysis
- Introduction
- Features of Hydrograph
- Hydrograph Separation
- The Unit of Hydrograph Theory
- Derivation of Unit Hydrograph
- The Convolution Equation
- Unit Hydrograph from Complex Storms
- Unit Hydrograph for Various Durations
- S-Curve Hydrograph
- Distribution Graph
- Use and Application of Unit Hydrograph
- Synthetic Unit Hydrograph
- Dimensionless Unit Hydrograph
- CWC method for Catchment in USA
Instantaneous Unit Hydrograph
- Introduction
- Convolution Integral
- Derivation of IUH from S-curve
- Relationship Between IUHG and DUH
- Derivation of IUH by Other Methods
Flood Routing
- Introduction
- Reservoir Routing
- Channel Routing
Design Flood
- Introduction
- INcreasing the Observed Flood
- Envelope Curves
- Empirical Formulae
- Rational Method
- Unit Hydrograph Application
- Frequency Analysis
- regional Flood Frequency Analysis
Sedimentation
- Introduction
- The Process of Erosion
- Factors Affecting Erosion
- Sediment Transportation
- Sediment Yield
- Reservoir Sedimentation
Streams and Rivers