ppt describing the hydrological cycle...just watch it and get it easier to understand yhe process....

2. Created By:
Civil-B Students
Jay S. Singhania (146490306107)
Vishvajit M. Shekhva
(146490306104)
Viren K. Trivedi (146490306115)
Pratik Sisodiya (146490306108)
Jaysinh Vala (146490306120)

3. Guided By:
Mr. K. H. Bhatt
Mr. M. B. Shrivastav
Mr. P. D. Gohil

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.