##### Chapter 11 - GIS Fundamentals Final

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created 2 years ago by Abby_Bohman
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GIS Fundamentals
Chapter 11
Terrain analysis
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1

What are digital elevation models, and why are they used so often in spatial analyses?

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2

How are digital elevation data created?

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3

Write the definition of slope and aspect, and the mathematical formulas used to derive them from digital elevation data

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4

11.4 - 11.9 page 511

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5

Plot a graph of slope in degrees (on x axis) against slope in percent (y axis). Which is usually larger, slope as degrees, or slope expressed as percent?

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6

What is an elevation contour?

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7

11.2 - 11.13

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8

What is the formula to calculate a contour height from two measured elevation points?

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9

11.15 - 11.19

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10

What are plan curvature and profile curvature, and how do they differ?

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11

Define the following: solar zenith angle, solar azimuth angle, and solar incidence angle

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12

draw a diagram illustrating the solar incidence angle, and identify what site/terrain factors affect the solar incidence angle

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13

what are viewsheds, when are they used and how are they calculated?

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14

What is a shaded relief map, also known as a hillshade surface? How are the values for each cell of the hillshade surface calculated?

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