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Published byDenis Reynolds
Modified over 5 years ago
What is a Watershed ? Area of land that sheds (moves ) water from the highest to the lowest point.
Austin’s Colorado River
Lady Bird Lake
Watershed Map City of Austin What watershed Are we in? Walnut Creek
Groundwater Cenote in Mexico
Groundwater Water found in the spaces between soil particles and cracks in rocks underground A natural resource that is used for drinking, industry and growing crops Examples: aquifers and springs
Porosity and Permeability How fast water can flow through a material Depends on the particle size. The larger the particle size the more permeable the material.
Porosity and Permeability
Impermeable Layer A layer of material which water does not pass; also known as a confining layer Examples: Clay and shale(natural), concrete (man-made)
Land Use Changes effect the water cycle
Aquifer An underground geological formation to store and yield water
The Hydrologic Cycle and Groundwater
Aquifer San Antonio 1895
Barton Springs Pool
Recharge Zone Layer below the surface that has holes where water can go through to the Aquifer. Example: Karst Limestone
Features of Karst Terrain
Karst Terrain Landscape shaped by the dissolution of soluble rock San Salvador, Bahamas Karst Landscape France
The Environmental Implications of Karst Terrain
Cave Formation Animation of Cave Formation Innerspace Cavern Georgetown, Texas
Cave Deposition Natural Bridge Cavern New Braunfels, Texas Carlsbad Cavern New Mexico Dissolved calcium carbonate is precipitated creating cave formations
How much of the Earth’s water supply is available to drink? Less than 1 %!
Groundwater Chapter 16.
Warm Up Think about where water comes from. Is there more or less water on Earth than there was 1 billion years ago?
Water Underground S6E3 Students will recognize the significant role of water in Earth processes. S6E3.a Explain that a large portion of the Earth’s.
Groundwater Chapter 6.3.
Section 1: Water Resources
Earth as a System The hydrologic cycle Illustrates the circulation of Earth's water supply What processes make up the water cycle?
Chapter 11: Water.
Aquifer An underground body of water held by rock (enough water to be usable)
Water Resources Water is essential to life on Earth.
Watersheds and Groundwater. What is a WATERSHED? What do you think of when you hear the term “watershed”?
1 Aquifers/Edwards Aquifer. 2 What is an Aquifer? A body of rock, sediment, or soil that contains drinkable water and can transmit this water to wells.
Groundwater What is Groundwater???? The water that has seeped into the soil and rock. The underground area is broken down into 4 areas… 1) Zone of Aeration.
Chapter 16 Study Notes: Groundwater.
Last week we discussed how run-off can occur two different ways: Surface Run-off – water flowing on the surface to streams, rivers and oceans. Subsurface.
Groundwater Water Beneath the Surface. Groundwater Largest freshwater reservoir for humans.
Introduction to Groundwater, Karst and the Edwards Aquifer Water color by Kathy Rottier.
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