##### Chapter 12 - GIS Fundamentals Final

Why perform a spatial interpolation?

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Describe four different sampling patterns, and provide the relative advantages or disadvantages of each? Which do you think is used most in practice, and why

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12.3 - 12.10 page 564

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What is a primary difference between a spline interpolation method and a trend surface interpolation?

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What is the primary difference between a trend surface interpolation and a kriged interpolation?

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Describe the variogram. What does it represent on the x and y axes, and what are the important regions/points of the plot?

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12.14 page 568

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What is the convex hull? How is it calculated/determined?

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12.16 - 12.17

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Describe/define a kernel density map. Include how the values are based on the samples.

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Write down and describe at least one function or equation used to generate a density surface

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12.20 - 12.21

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