Introduction to Water

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Introduction to Water

• March 4, 2010

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The Hydrological Cycle
Solar Radiation
Condensation
Winds
Precipitation
Evaporation
Transpiration
Precipitation
Runoff
Infiltration
Ground Water
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Did you Know

• About 70 percent of the Earth's surface is water

• There is a lot of water on planet Earth, right?

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Water, water everywhere, but not a drop to
drink.

• Not really
• 97 of it is in the oceans
• 2 of it is locked in glaciers
• leaving approximately 1 for all of the land
  based plants, animals, and 6.5 billion humans to
  survive on

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How much water do we use?
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Average Daily Domestic Water Use
Rank Country Water per person
1 United States 425 litres
2 Canada 330 liters
3 United Kingdom 200 liters
4 France 150 liters
5 Israel 135 liters
6 India 35 liters
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Think about it

• Water is a renewable resource.

• Are we using it in a sustainable way?

• What does this mean for us and our future?

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Where does our water come from?

1. Surface water
2. Groundwater

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Surface Water vs. Groundwater

• Most large cities depend on surface water for
  their water supplies.
• Surface water is fresh water that is aboveground
  in lakes, ponds, rivers, and streams.
• Throughout history, human societies have
  flourished where surface water was abundant.
• To understand Canadian surface water, you need to
  understand what a drainage basin is and where
  they are in Canada.

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Pacific Water Flow
Arctic Water Flow
Hudson Bay Water Flow
Atlantic Water Flow