Hydrologic or Water Cycle

The Movement of Water

Hydrology is the study of the movement, distribution, and quality of water throughout the Earth, including the hydrologic cycle, water resources and environmental relationships.

Before launching into the individual water quality parameters and interactions, some discussion is needed to put the Earth’s water systems or hydrologic cycle into perspective. A wide variety of representations of the hydrologic cycle exist.

These Figures are examples of the Hydrologic Cycle. The hydrologic cycle is subject to various water processes of condensation, precipitation, evaporation, transpiration, interception, infiltration, percolation, storage, and runoff.

From: Your Dictionary; Hydrologic Cycle

From: The Hydrologic Cycle – A Qualitative Representation (Horton 1931)


From: asclearaswater.com Hydrologic Water Cycle “The hydrologic cycle is the water cycle, including precipitation of water from the atmosphere as rain or snow, flow of water over or through the earth, and evaporation or transpiration to water vapor in the atmosphere. Water evaporates from the earth and rises into the atmosphere where it forms clouds. In nature, this is where water is in its purest form. However, it does not stay that way for long. Its stay in the air is short. Water droplets forming in clouds, absorb particles and impurities found floating in the air.”

Although the work of circulating water and transporting non-aqueous material are major aspects, by no means are these the only water processes to be considered. There are many different paths that continuous water circulation can occur, or places where water can be stored for periods of time.

Conditions for aquatic life in lakes and rivers are largely determined by the physical and chemical properties of water including its stability and solvent powers. Since aquatic life and organism communities can exist only within a narrow range of environmental conditions, the properties of water help maintain the boundaries of the aquatic environment.

Each organism that lives in water or otherwise uses it, influences to some degree the energy and materials the water carries. Many changes that organisms bring about in water are essential to the existence of their own and other kinds. Man is no exception.

A major impact on the environmental factors influencing the composition of the water results from the land use activities of man. The power of man to alter his environment is awesome and is evident by the many changes which civilization can bring about in the water resources. Solutes may be directly added to water by disposal of various wastes. The ecology of whole drainage basins may be profoundly altered by bringing land into cultivated agriculture and urbanization.
For example: This is a river in India that is flowing trash, plastics and garbage.

From: Project Smile India

Studies have estimated that rivers of North America carry an average natural load of 85 metric tons per year in solution for each square mile of drainage basin. Imagine what this river must be carrying. Plus, water movement rates and solute circulation rates can be altered by water diversions, structures, and paved surfaces that replace open land.

However, by practicing careful management and use of fresh water, man can maintain the conditions necessary for aquatic life and also provide for his drinking water, aesthetic and material needs associated with water.

Water Basics 101 – common water quality parameters <<<...return

Next Topics…
Fresh Water Resources

Physical Water Quality
Chemical Water Quality
Biological Water Quality

 <<<...return Water Basics 101



Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

...more from Dr. Gordon Snyder
Dr. Gordon Snyder on Google


Phone: (206) 440-3008 • info@sciencefaircenter.com

Home | Site Map | Privacy Policy | Customer Service | Contact Us | Links

Visa Master Card AmEx PayPal

Please visit our family of websites

School water science fair projects
ScienceFairWater.com
ScienceFairCenter.com online store
ScienceFairCenterEnvironmental.com online store
SciencefairCenterWater.com online store
HydroPodnics.com online store
Watercenter.org

Scrapbook card making paper crafts
Urbanscrapbooker.com
Urbanscrapbooker.com online store
Scrapbook supplies donation progrm
Scrapbooking - card making classes
Scrapbook newsletter
Scrapbook store map contact us
Urban Scrapbooker blog
Urban Scrapbooker videos

Whales Without Borders
WhalesWithoutBorders.com
WhalesWithoutBorders.org
WhalesWithoutBorders.info
WhalesWithoutBorders.net

Water filters, water test kits, water equipment
Watercenter.com
Watercenterfilters.com
Watercenter.net
Battle Bottled Water Info
Water Logged Blog

Music, music composition, restore vinyl records
BarrySebastian.com
SebastionAndTheDeepBlue.com
Dyslexichiphop.com
Cleanlp.com
Cleanlps.com online store
JonesTechServices.com
spam prevention

All our websites are different...
Website created by Gordon Snyder and hosted by: synergos.com
Last updated on:
Family Friendly Website Safe Surf Sites Water Friendly Website Award Internet Rating Content Assoc.
www.sciencefairwater.com © 1998 - 2013 Gordon Snyder & Consultants, Inc., All rights reserved .