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Advanced GIS Midterm ESRI Training Review Exam With Complete Solutions 100% Verified
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Advanced GIS Midterm ESRI Training Review Exam WithComplete Solutions 100% Verified
What question does exploring the spatial distribution of your data answer? ANSWER
Where is your data in geographic space?
What question does exploring the spatial autocorrelation and variation in your data
answer? ANSWER How is the value of the data related to its location?
If you are determining if there is a pattern of variation in your data, what exploratory tool
would you use? ANSWER Trend Analysis
If it is -10 degrees Fahrenheit in Rome and 80 degrees Fahrenheit in Stockholm in March
these values would be candidates for which data property? - ANSWER Outlier
When you explore local variation and stationarity in your data, which exploratory tool
should you use? - ANSWER Voronoi Map
When you explore spatial autocorrelation in your data, which exploratory tool should
you use? - ANSWER Semivariogram/Covariance cloud
Which spatial statistics tool enables you to examine the overall directional trend of your
spatial data? - ANSWER Directional Distribution
A spline surface passes through every sample point. - ANSWER False
You are creating a surface of precipitation based on rainfall amounts collected from
sample points. Which of the following methods will NOT produce negative precipitation
amounts? - ANSWER Inverse Distance Weighted (IDW)
, When would you use the IDW interpolation method? - ANSWER When you want to
interpolate phenomena whose distribution is strongly correlated with distance
Which of the following phenomena cannot be modeled using interpolation?
A. Elevation
B. Precipitation
C. Soil Type
D. Air Pollution - ANSWER
What is the main disadvantage of IDW? - ANSWER It models spatial autocorrelation with
a specific function regardless of the particular properties of the surface to be estimated.
When can the method of spline interpolation be used as an alternative to the IDW
method? - ANSWER When you want to estimate values that are below the minimum or
above the maximum values found in the sample data
In a derived raster, which of the following cells are least reliable? ANSWER Corner Cells
Which of the following are characteristics of the spline interpolation method? (Select all
that apply.)
a. It produces a surface that flattens peaks and valleys.
b. It estimates values using averages.
c. It has two types: regularized and tension.
d. It creates a surface that preserves the z-value at each sample location.
e. It interpolates lows and highs where they do not exist in the sample data. - ANSWER
C, D, and E
Which of the following is a method of producing a smoother IDW interpolated surface? -
ANSWER Decrease the power
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