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Surface water

Surface Water:

 

Ponds, Lakes, Rivers, Streams, etc.

 

Image result for pond vs lake

The difference between a pond and a lake is that lakes are larger, but not standardized.  That said, if light does not reach the bottom, then it is a lake.  Ponds have rooted plants and vary more in temperature.

 

How are rivers "born?"

A river is "born" when the water table reaches the surface.  This could be the result of a spring as we learned about in the last unit or from erosion of a gully into the water table.

Spring:

Image result for spring groundwater

Image result for spring groundwater

Gully:

Image result for gully

Image result for gully

 

Water carries sediment.  This sediment has some interesting effects.  First, let's see how it is carried:

Image result for sediment in river

 

The major factor controlling how much sediment is in the river is the river's speed.  Other factors?

 

 

As a river "ages", it changes:

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Image result for young river vs old river

Image result for young river vs old river

Image result for young river vs old river

Image result for young river vs old river

Or, in words:

Image result for young river vs old river

The features of a river:

Image result for river profile

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Image result for mature river profile, features

Related image

Image result for mature river profile, features

 

Image result for watershed

Features to know:

Floodplain, Levee, Channel, Delta, Meander, Oxbow, Watershed, Divide

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