Unit 1 - Maps and Geographical Data Flashcards
Maps that show and label human created boundaries and designations
Political Maps
Maps that show and label natural features
Physical Maps
Type of thematic map that uses various colors, shades of color, patterns to show the location and distribution of spatial data
Choropleth Maps
Type of thematic map used to show the specific location and distribution of something across a map
Dot Distribution Map
Type of thematic map that uses symbols of different sizes to indicate different amounts of something
Graduated Symbol Map
Type of thematic map that uses lines that connect points of equal value to depict variations in the data across space
Isoline Map
The most common type of isoline maps. On these maps, points of equal elevation are connected, creating contours that depict surface features.
Topographic Map
Type of thematic map in which sizes of political features are shown according to some specific statistic.
Cartogram
The ratio between the size of things in the real world and the size of those same things on a map.
Scale
Refers to the way the map communicates the ratio of its size to the size of what it represents
Cartographic Scale
The precise spot where something is according to a system.
Absolute Location
Description of where something is in relation to other things.
Relative Location
How well two locations are tied together by roads or other links
Connectivity
How quickly and easily people in one location can interact with people in another location.
Accessibility
Used in order to describe where things are in relation to each other.
Direction
Usually measured in terms of feet, miles, meters, or kilometers.
Absolute Distance
Indicates the degree of nearness based on time or money; it is often dependent on the mode of travel.
Relative Distance
The distance of features above sea level, usually measured in feet or meters.
Elevation
The ways a phenomenon is spread over an area.
Distribution
The general arrangement of things.
Patterns
The process of showing a curved surface on a flat surface.
Projections
Geographers are concerned by the political and economic bias of what three things that can be subconsciously reinforced by using an incorrect projection?
Power, wealth, and superiority
What are 2 reasons why maps are the most important tool of a geographer?
Maps help organize complex information and no tool communicates spatial information more effectively than a map.
What are 5 types of thematic maps?
Choropleth Map
Dot Distribution Maps
Graduate Symbol Maps
Isoline Maps
Cartogram Maps
Why are cartograms useful?
The sizes of countries are shown according to a certain statistic.
What are 4 ways in which cartographic scale can be expressed?
Words
Ratio
A line
Scale
Latitude is…
the distance North or South of the equator.
Longitude is..
the distance East or West of the equator.
What are the 4 Cardinal Directions?
North
South
East
West
Northwest, Southwest, Northeast, Southeast are known as…
Intermediate Directions
What types of things are impacted by elevation?
Climate
Weather
Agriculture
Define a Clustered or Agglomerated distribution pattern.
Phenomena are arranged in a group or concentrated way.
Give an example of Clustered Distribution.
When houses are built very close together and the houses have smaller lots.
Define a Linear distribution pattern.
Phenomena are arranged in a straight line.
Give an example of a Linear distribution pattern.
Where settlements are built in a line, often along a road, river, or valley.
Define Dispersed distribution pattern.
Phenomena are spread out over a large area.
Give an example of Dispersed Distribution pattern.
An area that has houses that are further apart and have larger lots and more land from one house to the next.
Define Circular Distribution.
Phenomena are equally spaced from a central point, forming a circle,
Give an example of Circular Distribution.
The distribution of the homes of people who shop at a particular store.
Define Geometric Distribution.
Phenomena are in a regular arrangement , such as squares.
Define Random Distribution Patterns.
Phenomena appear to have no order to their position.
What is the purpose of Mercator map projections?
Navigation
What are the strengths of Mercator map projections?
The Mercator projection preserves angles, so it is useful for navigation purposes, as it allows sailors to draw straight lines on the map that correspond to true compass bearings.
What is the Distortion of Mercator map projections?
Distorts the size of objects as the latitude increases from the equator to the poles, where the scale becomes infinite.
What is the purpose of Peters map projections?
It offers a representation of the nations in their true proportion to one another, which provides a helpful corrective to the distortions of traditional maps for countries to fit on a flat surface.
What are the strengths of the Peters map projections?
all countries are correct in size in relation to each other.
What is the distortion of the Peters map projections?
Countries are stretched horizontally near the poles and vertically near the Equator, so although the size may be right, the shape definitely isn’t.
What is the purpose of the Conic map projections?
used for midlatitude zones that have an east–west orientation
What are the strengths of the Conic map projections?
size and shape are close to reality
What is the distortion of the Conic map projections?
direction not constant, longitude line converse at one pole.
What is the purpose of the Robinson map projections?
to create visually appealing maps of the entire world
What are the strengths of the Robinson map projections?
it keeps the levels of all types of distortion relatively low over most of the map.