4.1 - Terrain analysis and geomorphology Flashcards

1
Q

Geomorphology

A

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

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2
Q

Terrain analysis

A

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

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3
Q

Importance of Geomorphology/Terrain analysis

A
  • stability of slopes
  • flooding potential
  • drainage conditions
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4
Q

Remote sensing

A

Acquiring information about an object without touching the object itself

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5
Q

Specular refelction

A

reflector is flat like a mirror

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6
Q

Diffuse reflection

A

reflection off of rough surfaces

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7
Q

Moisture in soil does what to reflection?

A

Decreases it

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8
Q

Visual image interpretation

A
  • Applied to aerial photographs
  • Form a detailed record of features on the ground at the time of acquisition
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9
Q

Applications of terrain analysis

A
  • Water studies
  • geologic mapping
  • soil mapping
  • environmental impact studies
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10
Q

Mass wasting

A

The downslope movement of material under the direct influence of gravity

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11
Q

Mass Wasting - Falls

A

Material falls through the air

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12
Q

Mass wasting - Slides

A

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

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13
Q

Mass wasting - flows

A

Material has internal movement, like a fluid when it moves

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14
Q

Creep

A

very slow flow

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15
Q

rock fall

A

Very fast vertical fall

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16
Q

slump

A

slow rotational slide

17
Q

Two different types of slides

A

Translational and rotational

18
Q

Different types of flows

A

Debris flow
Debris avalanche
Earth flow
mud flow
creep

19
Q

Fluvial processes and land forms

A

Generated by running water (mainly rivers)

20
Q

Braided vs meandering stream

A

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

21
Q

Bank erodibility

A

The critical factor that determines whether a stream meander or braid

22
Q

Aeolian

A

relating to or arising from the action of wind