4.1 - Terrain analysis and geomorphology

Question 1

Geomorphology

Answer 1

The study of landforms, their processes, form, and sediments at the surface of the earth

Question 2

Terrain analysis

Answer 2

The process or identifying and interpreting the significance of terrain and its features

Question 3

Importance of Geomorphology/Terrain analysis

Answer 3

• stability of slopes
• flooding potential
• drainage conditions

Question 4

Remote sensing

Answer 4

Acquiring information about an object without touching the object itself

Question 5

Specular refelction

Answer 5

reflector is flat like a mirror

Question 6

Diffuse reflection

Answer 6

reflection off of rough surfaces

Question 7

Moisture in soil does what to reflection?

Answer 7

Decreases it

Question 8

Visual image interpretation

Answer 8

• Applied to aerial photographs
• Form a detailed record of features on the ground at the time of acquisition

Question 9

Applications of terrain analysis

Answer 9

• Water studies
• geologic mapping
• soil mapping
• environmental impact studies

Question 10

Mass wasting

Answer 10

The downslope movement of material under the direct influence of gravity

Question 11

Mass Wasting - Falls

Answer 11

Material falls through the air

Question 12

Mass wasting - Slides

Answer 12

Material moves as a coherent mass along a surface with little or no internal motion within the mass

Question 13

Mass wasting - flows

Answer 13

Material has internal movement, like a fluid when it moves

Question 14

Creep

Answer 14

very slow flow

Question 15

rock fall

Answer 15

Very fast vertical fall

Question 16

slump

Answer 16

slow rotational slide

Question 17

Two different types of slides

Answer 17

Translational and rotational

Question 18

Different types of flows

Answer 18

Debris flow
Debris avalanche
Earth flow
mud flow
creep

Question 19

Fluvial processes and land forms

Answer 19

Generated by running water (mainly rivers)

Question 20

Braided vs meandering stream

Answer 20

Braided: Multiple thread stream
Meandering: A stream with a single winding channel

Question 21

Bank erodibility

Answer 21

The critical factor that determines whether a stream meander or braid

Question 22

Aeolian

Answer 22

relating to or arising from the action of wind