Geo_ _graphy van den Keere, 1607

• Human Geography:

World Population density, 1995

NASA, 1996

Problem?

Ethnocentrism S

Five Themes 1. _

2. _

3. _

4. _

5. _

Topological Map

• Reference Map:

North America 1:101,376,000

MidAtlantic1:5,576,000

• Simplification:

Downtown 1:6000

• GIS:

• Spatial Data:

• Primary Data:

• Secondary Data:

• Thematic Maps:

Choropleth

Dot

Regions

Patterns

Density

Dispersion

Distribution

Proportional symbol

Isoline

Aggregation:

BASIC STATISTICS

• Equal Frequency

• Equal Interval

Creating Classes

2.2 Based on this map, name four cities with the largest number of African American residents. 2.8 Which color scheme, if any, does a poor job of portraying the percent AfricanAmerican? Why?

1.9. Could we say the same thing about the Boston area – has it become more spread out?

Boston, 1927 (www.mappingboston.org)

Boston, 2000

An alternative to the Equal Frequency or Equal Interval methods:“Natural Breaks”

2.10. Other Ways to Classify Your Information.

0-1/4

0-3%

1/4-1/2

4-6%

1/2-1

7-12%

1-2

13-24%

2+

25%+

2.10. Other Ways to Classify Your Information.

An alternative to the Equal Frequency or Equal Interval methods:“Indexing”

US - 12.3%

¼ = 3%

½ = 6%

1 = 12%

2 = 24%