Deck 14: How to Perform Spatial Interpolation With Arcgis Pro

Question 1

Which of the following interpolation methods is not a deterministic method?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation

Answer 1

B

Question 2

Which type of Kriging assumes the presence of a trend in the dataset?

A) Polynomial
B) Ordinary
C) Universal
D) Global

Answer 2

C

Question 3

Which is true of a local interpolation method?

A) All points in the dataset are used to determine an unknown value at a particular location.
B) A subset of both the closest known points to a location as well as a subset of the farthest away known points from a location are used in the interpolation process.
C) Only the values of the three closest known points are used to determine the unknown value for a location.
D) A small subset of known points near a location are used to determine the unknown value at that location.

Answer 3

D

Question 4

Which of the following interpolation methods uses the premise that the closer a nearby value is to a location, the more weight it contributes to calculating the value at that location?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation

Question 5

The goal of spatial interpolation is:

A) To determine the unknown value at a location based on known values at other locations
B) To identify the points used in the IDW process
C) To compute a series of unknown values based on field measurements
D) To turn a point into a functional surface

Question 6

Which type of spline has a tendency to produce a less smooth surface?

A) Tension
B) Continuous
C) General
D) Regularized

Question 7

Which of the following interpolation methods is inexact and used for identifying overall broad trends?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation

Question 8

Which of the following interpolation methods tends to produce overly smooth surfaces?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation

Question 9

Using the polygon boundaries of states to determine statistics (such as the sum) of raster cells that fall within those boundaries is an example of which concept?

A) Global interpolation
B) Zonal
C) Power
D) Universal Kriging

Question 10

Which of the following interpolation methods takes statistical measures and spatial autocorrelation into account when interpolating?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation

Question 11

Which ArcGIS Extension contains utilities for working with spatial statistics?

A) Geostatistical Analyst
B) Spatial Analyst
C) Zonal Statistics Analyst
D) Interpolation Analyst

Question 12

An interpolation method that accounts for spatial variation is:

A) Variogramming
B) Semivariance
C) Deterministic
D) Geostatistical

Question 13

Which type of spline has a tendency to produce a surface with values well outside the range of source values?

A) Tension
B) Continuous
C) General
D) Regularized

Question 14

An interpolation method that uses a mathematical process to fit the surface exactly through the known points is:

A) Tension
B) Nearest Neighbor
C) Spline
D) Kriging

Question 15

Which of the following interpolation methods will often contain a "bull's-eye" effect in its resulting surface?

A) IDW
B) Kriging
C) Spline
D) Global Interpolation