Unit 1: Maps & Data
This map projection is famous for distorting the size of landmasses at the poles but is useful for marine navigation.
Mercator Projection
This term refers to the physical character of a place, such as its climate, water sources, or soil
Site
This is the total number of people divided by the total land area.
Arithmetic Density
A country in this stage of the DTM has very high birth rates and high death rates, resulting in low natural increase.
Stage 1
These are factors that induce people to move out of their present location.
Push Factors
This type of map uses various colors or shading to represent predefined areas, such as countries or states, based on a specific statistic.
Choropleth Map
A region defined by a particular set of activities or a central node, like a pizza delivery area.
Functional/Nodal Region
The number of people per unit of area of arable (farmable) land.
Physiological Density
This stage of the DTM is characterized by a "Population Explosion" due to a rapidly falling death rate.
Stage 2
This type of migration involves a series of shorter, less extreme movements from a person's place of origin to a final destination.
Step Migration
This technology uses satellites to determine the precise position of something on Earth.
GPS - Global Positioning System
The idea that the physical environment limits human actions, but people have the ability to adjust and choose a course of action.
Possibilism
This is the average number of children a woman will have throughout her childbearing years.
Total Fertility Rate - TFR
This is the primary reason why a country moves from Stage 2 to Stage 3 of the DTM.
Social/Economic changes leading to declining Birth Rates
An environmental or cultural feature that hinders migration is known as this.
Intervening Obstacle
A "Large Scale" map shows this amount of detail for a small area.
A high or great amount of detail
This type of distance decay occurs when the friction of distance is reduced by improved transportation or communication.
Space-Time Compression
If a country has a high "Dependency Ratio," it means they have a large population of these two age groups.
People under 15 and over 65
This specific term describes the transition of causes of death (from infectious diseases to degenerative ones) as a country develops.
Epidemiological Transition
Ravenstein’s Laws of Migration state that most long-distance migrants tend to be of this demographic.
Young, single adults - traditionally males
This type of data is descriptive and often comes from interviews or observations, rather than numbers
Qualitative Data
This specific type of diffusion occurs when an idea spreads from a person or node of authority/power down to other people or places.
Hierarchical Diffusion
According to Thomas Malthus, population grows geometrically, while food production grows in this manner.
Arithmetically/Linearly
This "Rule" is used to calculate how long it will take for a population to double ($70 / \text{NIR}$)
Rule of 70
This is the term for the migration of people to a specific location because relatives or members of the same nationality previously migrated there.
Chain Migration