a watershed: rivers, streams, lakes and ponds write everything in red
TRANSCRIPT
A Watershed:Rivers, Streams, Lakes and
Ponds
Write everything in red
Watershed
A watershed, or drainage basin includes all of the land that drains into a river or bay either directly or through its tributaries,
The high land that separates one river valley or watershed from the next is called the divide
Satellite View: The
Great Divide
The Great Divide
Young Rivers
• Generally straight, narrow course of the river.• Waterfalls• Niagara Falls
Old Rivers• Generally flat areas• Wide flood plains• Meanders
• Owens Valley, CA
Cutbank & point bar
• Point bar – sediments get deposited• cutbank – sediments get eroded
Meander: Old River or New River?
What do you think will happen next?
What happens when you build a city on a flood plain?
Cincinnati 1997
Lake Turnover
Pond or Lake? Explain which one it is to your shoulder partner.
Why is this a lake? Discuss the reasons with your table.
Talk with your shoulder partner, what do you think is going on in this lake/pond?
What Lake is this, and what is it also known as?
Lake ?
A Man Made Levee
A Natural Levee
Natural Levee
Oxbow Lake http://www.geocaching.com/seek/cache_details.aspx?wp=gcqv5mhttp://www.sln.org.uk/geography/oxbow
Oxbow lake and Chippewa River, Wisconsin
What is this? Ask your shoulder partner
AluvialFans
In your notebook, explain and draw the steps in the formation of an oxbow lake.