Cartography and Visualization

Question 1

Thematic Map

Answer 1

A type of map that is especially designed to show a particular theme connected with a specific geographic area.

Question 2

Choropleth Map

Answer 2

A thematic map where geographic regions are colored shaded or patterned in relation to a value, relying on boundaries.

Question 3

Proportional Symbol

Answer 3

symbol drawn proportional in size to the size of the variable being represented

Question 4

Isarithmic

Answer 4

Isopleth. Lines of equal value are drawn (such as contour maps) or ranges of similar values are filled with similar colors or patterns, relying on the density of the variable.

Question 5

Dot Map

Answer 5

It shows the distribution of the phenomena where values and locations are known, placing a dot where the location of the variable is.

Question 6

Dasymetric Map

Answer 6

An alternative to choropleth, which is ancillary information is used to model the internal distribution of the phenomenon.

Question 7

Multivariate display

Answer 7

Putting more than two sets of data on one map

Question 8

Web Mapping

Answer 8

The process of using maps delivered by GI. Web maps are both served and consumed.

Question 9

Map Layout Elements

Answer 9

title, map, legend, scale, supporting media, north arrow, metadata (source, currency of the information, projection, copyright, and authorship)

Question 10

Symbols

Answer 10

That represents things on a map

Question 11

Map Accuracy

Answer 11

It’s difficult to assess, as all maps show a selective view of reality. Instead, we should ask if the map is appropriate for our purposes.

Question 12

Map Scale

Answer 12

1:100 - One inch represents 100 inches in the real world (but actually unitless). Large scale is more zoomed in and shows more details than small scale.

Question 13

Symbolization variables

Answer 13

size, shape, orientation, pattern, hue, value

Question 14

Quantitative variable on map

Answer 14

can be represented by the size/thickness/hue/ color shades of their symbols.

Question 15

Qualitative variables on map

Answer 15

can be represented by the shape, pattern (dash line vs. the straight line), and hues.

Question 16

Typography

Answer 16

The design of the text, point size, line length, and typefaces.

Question 17

Verbal scales

Answer 17

express in words a relationship between a map distance and ground distance, such as “ one inch represents 16 miles”.

Question 18

Visual scales

Answer 18

a graphic scale or bar scale

Question 19

Representative scales

Answer 19

it’s a representative fraction or ratio scale, such as using “1 inch = 24,000 inches” to represent “1:24,000”

Question 20

Absolute scales

Answer 20

The system of measurement begins at a minimum or zero point and progresses in only one direction (which is the form of a map scale that the scale starts from 0 and expands to the right side with only positive numbers on the ticks)

Question 21

Relative scales

Answer 21

It begins at some point selected by a person and can progress in both direction

Question 22

Display v. Data

Answer 22

The data is built at a certain scale/accuracy but once the data is displayed in any other format than the one it was made for, the scale gets warped, such as a map made as 9’‘*10’’ that is then scaled down and printed in a newspaper.

Question 23

3D Mapping

Answer 23

Typically the z value is the elevation.

Question 24

Contour Line

Answer 24

Isoline, isopleth, or isarithm. This function of two variables is a curve along which the function has a constant value. It joins points of equal value on a line.

Question 25

Contour interval

Answer 25

Difference in elevation between successive contour lines

Question 26

Index Contour

Answer 26

The contour that is thicker and typically labeled

Question 27

Iso

Answer 27

It means equal, and in a contour map, it means the equal distance between two lines.