Thematic Maps

Question 1

a thematic map that scales the size of an enumeration unit proportionally to the represented value

Answer 1

cartogram

Question 2

a thematic map that uniformly colors each non-overlapping enumeration unit according to the represented value

Answer 2

choropleth map

Question 3

a thematic map that uses additional data to determine the new borders of enumeration units to improve the representation of the spatial distribution of the mapped phenomenon

Answer 3

dasymetric map

Question 4

a thematic map that places dots within an enumeration unit in proportion to the represented value to preserve the distribution and variation of density of a phenomenon

Answer 4

dot density map

Question 5

a thematic map that represents the direction and/or magnitude of a phenomenon along linear objects or between locations

Answer 5

flow map

Question 6

a classified proportional symbol map

Answer 6

graduated symbol map

Question 7

a line derived through interpolation that connects points of equal attribute value on a map

Answer 7

isoline/isarithm

Question 8

the numerical distance between successive isolines/isarithms

Answer 8

isoline interval

Question 9

a thematic map that uses isolines resulting from interpolating values collected at sample points

Answer 9

isometric map

Question 10

a thematic map that uses isolines resulting from interpolating values enumerated across areas

Answer 10

isoplethic map

Question 11

a thematic map that scales the size of a point symbol proportional to the represented value

Answer 11

proportional symbol map

Question 12

lines placed between isolines resulting from regular isoline interval in order to capture small but important pattern of mapped phenomenon that regular interval is not able to show

Answer 12

Supplementary isolines

Question 13

map that shows the spatial distribution of one or more geographic phenomena

Answer 13

thematic map

Question 14

• Involves the selection of an appropriate point symbol to represent each discrete element of
  a geographically distributed phenomenon
• a single dot or other symbol represents a
  specified number of occurrences of some
  particular phenomenon or event
• Precise location of each symbol is critical

Answer 14

Dot Map

Question 15

• Original data can be retrieved by counting the dots
  ▪Dots are located at centers of gravity

Answer 15

Dot>1

Question 16

 It is an effective way of illustrating spatial density, especially suitable for showing geographic phenomenon that are discontinuous
 Original data may be recovered from the map if the map has been designed for that purpose
 More than one data set may be illustrated on the same map

Answer 16

Dot Map

Question 17

Using circles, squares, spheres, cubes, or any shape in proportion to the frequency of occurrence of some particular phenomenon or event at a given location
 3D symbols can be used, but the consequence is their reduced range of size
 One other consequence is the perceptual scaling of the reader

Answer 17

Proportional Symbol Maps

Question 18

 Maps showing linear movement between places
 Also called ‘dynamic maps’

Answer 18

Flow Map

Question 19

radial or spokelike pattern, especially when
the features and places mapped are in nodal form

Answer 19

Radial flow maps

Question 20

used to reveal the interconnectivity of places, especially evidenced by transportation and comunication linkages

Answer 20

Network flow maps

Question 21

distribution of commodities or migration flows

Answer 21

Distributive flow maps

Question 22

• Wherein graphs or charts are located by place
  or by region.
• In this way, different amount of information
  can be conveyed in one single map

Answer 22

Located Charts

Question 23

Portraying a geographical theme of
continuous or discrete phenomena
occurring within areal enumeration units

Answer 23

Choropleth

Question 24

Used to show spatial numerousness of
discrete geographic phenomenon

Answer 24

Dot Map

Question 25

Displaying discrete phenomena at points,
or to represent aggregate data at points

Answer 25

Proportional Symbol Map

Question 26

Used when total form of continuous
phenomena is warranted

Answer 26

Isarithmic Map

Question 27

Used to show movement of goods or
ideas between places; used to show
interaction between places

Answer 27

Flow Map

Question 28

value-by-area maps, in which the area of each unit is in proportion to its value

Answer 28

Cartogram