Site Selection using Binary Models

Question 1

What are binary models?

Answer 1

A logical expression used to select features in a binary (0 1) format

Question 2

What do binary models determine?

Answer 2

Suitability based on a standard binary prinicple

Question 3

The _ would be the _ and it will give an _ of the potential sites

Answer 3

Input
Criteria
Output

Question 4

What primary tool is used to calculate suitability in ArcGIS Pro?

Answer 4

Raster calculator

= (> and < used) is the operator between two layers to give an output

Question 5

True of false: You can access attribute table for floating point raster data

Answer 5

False

You can only for integers because decibels mean we will not have any unique values (1.11 is a unique value)

Question 6

The value is the _ _ _ and the _ is the _ _ _ with the value

Answer 6

Unique cell value
Count
Number of pixels

Question 7

What does cell value represent or define?

Answer 7

A class, group, category or membership by reclassifying your pixel value by attributing the value to one of the mentioned

Question 8

What is zonal statistics and what is it used for?

Answer 8

To get statistics for your raster layer

Question 9

How does zonal statistics work?

Answer 9

The input, where you extract statistic from, and separate layer, raster or polygon to define the appropriate zones, to give statistics for each zone.

Question 10

How do you locate a cell in a raster matrix? What is the origin?

Answer 10

Defined by the row and column position within the matrix.
The raster origin is the top left corner

Question 11

What does a cells location have importance for?

Answer 11

Giving a georeferenced image, saved as a world file that is an external coordinate reference file for images
(ASCII/text file with 6 lines)

Question 12

When is creating your own world file necessary?

Answer 12

When you have to rotate OR rectify to be properly georeferenced

Question 13

For a rectified image, line 4 must…

Answer 13

Be equal to line 1 and of opposite sign (with a - before the value)

Question 14

True or false: line 2 and 3 should be zero for a improper georeferenced image

Answer 14

True

Question 15

What is the importance of using ‘Build Pyramids’? What are some of the advantage?

Answer 15

Improve the display performance of a raster dataset by downscaling sampled version at 2:1.

Gives a lower resolution image to a high resolution copy, and speeding up image loading and display time.

Question 16

How do you extract sample point locations?

Answer 16

Using the Spatial Analyst Tool: Extract Values to Points
X & Y coordinates can be calculated using the ‘calculate geometry’.