Watershed Geomorphology. Motivation. Effect of water on landscape: Whereas hydrologists are mostly concerned with the movement of water, a common task is to assess the impact of water flow on the transport of materials – sediment and solutes Effect of landscape on water
Water, sediment, and solutes are byproducts of watershed processing
Horton’s Laws of Drainage Networks
Law of stream areas
Law of stream lengths
L = CA0.6
Exponent tends to be near 0.6 for all rivers. What does this mean?
WITHIN a drainage basins, bankfull flow tends to scale log-linearly with area.
b 0.1-0.2 0.5
f 0.4 0.33-0.4
m 0.4-0.5 0.10-0.17
What are the implications?