Hydrologic Cycle

Hydrologic cycle is composed of the
interconnections between water reservoirs
in the environment and living organisms and
the physical processes involved in its
transport between those reservoirs.

1. Evaporation
The process of transformation of water
from liquid to gas by means of solar
radiation as it moves from the ground or
bodies of water into the atmosphere.

2. Sublimation
The phase change from
solid to gas; it is the state
change from solid water to
water vapor which occurs at
the glaciers.
3. Transpiration
The release of water
vapor from plants and
soil into the air.

4. Condensation
The process of transformation of water
vapor to liquid water droplets in the air which
creates clouds and fogs.

5. Advection
The process that moves water,
regardless of its state, throughout the
atmosphere.

6. Precipitation
The process of
transformation of
water which the
condensed water
vapor falls to the
earth’s surface.

7. Runoff
Includes surface runoff and channel
runoff.

8. Infiltration
The flow of water from the ground
surface into the ground. Once infiltrated, the
water becomes soil moisture or
groundwater.