Hydrology & Water Resources Engineering 5 min read
Estimation of Runoff-II
SCS Curve Number Method This method is developed by the Soil Conservation Service (SCS) in 1969. It is now known…
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Estimation of Runoff-I
Empirical Formulae In the past, many empirical formulae have been developed, but these are applicable only to the region where…
Hydrology & Water Resources Engineering 5 min read
Components of Runoff and Factors Affecting Runoff
Components of Runoff Runoff means the draining or flowing off of precipitation from a catchment area through a surface channel…
Hydrology & Water Resources Engineering 5 min read
Channel Characteristics of Watersheds
Number of Channels and their Order Identification of first-order channels is the first step in applying channel order in hydrology.…
Hydrology & Water Resources Engineering 4 min read
Physical Characteristics of Watersheds
Watershed Area Basin area is defined as the area contained within the vertical projection of the drainage divide on a…
Hydrology & Water Resources Engineering 8 min read
Types of Watersheds
Definition of Drainage Basin It is defined as, “any portion of the earth’s surface within a physical boundary defined by…
Hydrology & Water Resources Engineering 7 min read
Infiltration
Water is constantly evaporated from the earth, and is precipitated back on the earth, mainly in the form of rainfall.…
Hydrology & Water Resources Engineering 8 min read
Evapotranspiration
Transpiration Transpiration consists of the vaporization of liquid water contained in plant tissues and the vapour removal to the atmosphere.…
Hydrology & Water Resources Engineering 10 min read
Evaporation
Evaporation Process Evaporation includes all processes by which water returns to the atmosphere as water vapour: evaporation of intercepted rain…
Hydrology & Water Resources Engineering 6 min read
Interception and Depression Storage
Interception Interception is the removal of water that wets and adheres to plant foliage, buildings, and other objects above ground…
Hydrology & Water Resources Engineering 4 min read
Frequency Analysis of Point Rainfall
Storms of high intensity and varying durations occur from time to time. However, the probability of these heavy rainfalls varies…
Hydrology & Water Resources Engineering 8 min read
Estimation of Mean Areal Rainfall
A single point precipitation measurement is quite often not representative of the volume of precipitation falling over a given catchment…