Hydrologic Water Cycle-Definition and Various Steps involved in Hydrological Cycle

Water Cycle Process

Hydrologic Water Cycle process involves precipitation, evaporation, transpiration, infiltration and runoff.The air mass is said to be continental air mass when originated from land areas and maritime air mass when it originates from sea

The majority of earth water supply is contained in the oceans as saltwater and majority of fresh water is stored in iceberg or glaciers and the largest source of liquid freshwater is groundwater.

Hydrologic Cycle

Different hydrological Water Cycle Steps


Water converted from liquid to gas

From surface waters(lakes, rivers, mostly oceans)

The energy need for the change of state is provided by the sun


Emission of water vapour from plants

Plants absorb water from the soil for photosynthesis process.

Water vapour released through stomata under leaves


Water vapour turns into liquid water

As the vapour in air rises, it cools and turns back into liquid form in the sky


Water falling from the atmosphere

Vapour molecules collide and form liquid droplets

Fall as rain or snow


Water absorbs into subsurface or rocks

Simply we can say that percolation of water into the soil

Saturation occurs all the space between soil is filled with water


These infiltrated water will move down and reaches aquifers below the soil.The aquifer collects the water and they move into oceans though below the surface of the soil.There are two types of aquifers, confined and unconfined we will study later.

The surface of contact between two air mass and the surrounding atmosphere is called frontal surface and the intersection of the frontal surface with earth surface is called surface front.This is last hydrological cycle steps.Hope you got all.

What is cyclone?

A circular area of low atmospheric pressure in which the wind blows in the counterclockwise direction in the northern hemisphere and in the clockwise direction in the southern hemisphere is called cyclone.The centre of the cyclonic storm is called eye of the storm 

What is anticyclone?

The high-pressure areas in which the wind blows in the clockwise direction in the northern hemisphere and anticlockwise in the southern hemisphere is called anticyclones.

Read More

  1. What are the sources of water?
  2. Classification of waste water carriage systems.

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