Glaciers
These floods, originally dammed by glaciers, carved out the Columbia River Gorge more than 10 thousand years ago
What were the Missoula floods?
This type of mass movement is characterized by bent tree trunks, tilted poles, and leaning fences
What is creep?
The two different types of rivers that change over time
What are meandering and braided rivers?
The two types of glaciers
What are alpine and continental?
(Mountain or temperate and polar)
What is rock fall or debris fall?
The name for the depth where the soil is completely saturated with water
What is the water table or saturation zone?
The three zones or lines of a glacier
What are the accumulation zone, equilibrium line, and ablation zone?
Lahars are usually made up of these two things
What are volcanic ash and water
These are the units for river discharge
m^3 / s
Q = A*v
If the rate of this is greater than accumulation, it will cause a glacier to retreat
What is ablation?
These natural events can cause landslides (name 3)
What are wildfires, heavy rain, earthquakes, and rapid snowmelt?
The force that causes ground water to move
What is hydraulic gradient or pressure differences or gravity?