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The Hydrological Cycle
1.
2. Created By:
Civil-B Students
Jay S. Singhania (146490306107)
Vishvajit M. Shekhva
(146490306104)
Viren K. Trivedi (146490306115)
Pratik Sisodiya (146490306108)
Jaysinh Vala (146490306120)
4. Hydrological Cycle is the descriptive termapplied to the circulation of waterfrom
oceans to the atmosphere and back to the ground (precipitation).
In simple words, it is the earth’s water circulatory cycle.
5. This cycle starts fromthe evaporationof waterfromthe waterfilled bodies (oceans,
seas, lakes, ponds, etc).
The interesting fact is that themaximumamount of evaporation occurs fromthe
oceans and thus the smaller sources of waterfilled bodies like ponds, lakes, etcdon’t
empty up too early.
Also some of thewater gets evaporated fromtheporesof the vegetation due to the
sun’s heat whichis known as Transpiration.
6. Now, this water rises up in the atmosphere due to pressure difference.
And whenthis water rises tooup in the atmosphere, it condenses up due to the coldness
and forms the state of the clouds.
The cloudsare thus the condensedair forms which rise up in the air.
These clouds move withthe windand whenthese clouds are obstructeddue to and of the
reasons (like the high mountains, etc), they dropthe water as precipitation.
7. Now whenthis waterfalls on the earthsurface, some of the water getsabsorbed in
the groundand thus infiltrates deepin the ground and joins the sub-soil waterlevel
or groundwater level.
Now, the waterwhichdoes not getsabsorbed in the groundsurface, flows in the form
of the runoff.
8. Now this water, whichflows as runoff (inrivers), flows to the oceans and joins to the
ocean water.
Thus this cyclecontinues as evaporationto the precipitation.
9. Processes Involved In The Hydrological Cycle
Evaporation and Transpiration
Precipitation
Runoff
10. Evaporation and Transpiration
Due to heat of the sun, the water fromthe surfaces of the water
filledbodies (like oceans, seas, ponds, lakes etc) and moist water
surfaces evaporates. This is known as Evaporation.
Now, when the moisture is lost fromthe surface of the vegetation,
due to the sun’s heat, it is known as transpiration
11. Precipitation
The fall of the moisturefromtheatmosphere, in any formis knownas
the Precipitation.
Precipitatio
n
Liquid
Precipitation
Rainfall
Frozen
Precipitation
Snow Hail Sleet
Freezing
Rain
12. Runoff (R)
Part of precipitationthat does not gets absorbed in the groundsurface and
also not get evaporatedflows on theearthsurface as runoff.