Unit 1 Key Questions Flashcards
Who coined term geography? What is the definition of geography
- Eratostheres
- The study of where things are found on earth’s surface and the reason for the locations
What are the two key questions asked by geographers
- Where are people and activities found on earth
- Why are they found there
Cartography
The science of mapmaking
Two purposes that maps serve
- As reference tool (Where things are, absolute and relative location)
- As a communications tool (shows the distribution of human activities or physical features
How did maps/geography develop because of china
-Pei Xiu made elaborate map of China-> China better mapped
How did maps/geography develop because of Muslims
- Muhammad al-Idrisi built on ptolemy’s map
- Prepared/made world map and geography text
How did maps/geography develop because of Age of Discovery
- Explorers sailed across the world to new lands and cartographers used their info to make more accurate maps
- Martin Waldseemuller-> first map with “America” as label
- Ortelius-> created 1st modern atlas
- Varenius-> made Geographia Generalis, which was standard written work on systematic geography for 100 years
Map scale
The relationship of a feature’s (thing’s) size on a map compared to its actual size on Earth
Describe the three ways in whcih map scale can presented/expressed
- Ratio or fraction: Shows ratio between distances on the map and the Earth’s surface in numbers (1: 24,000, map:earth)
- Written scale: shows relationship in words (1 inch equals 1 mile, map to world)
- Graphic scale- bar line marked to show distance on earth’s surfac. use ruler to measure the bar line and compare to map
What is advantage of map with large scale (small portion of earth)
- Map is more detailed
- Big maps have to leave out details bc not enough space
What advantage does a small scale map (globe) have
-Can show processes and trends that affect everyone/a lot of people
What can be distorted when geographers convert the round earth to a flat map with projection
- Shape: Become more elongated or squat
- Distance: Between 2 pts change
- Relative size: One area may appear larger than another when its actually smaller in reality
- Direction: can be distorted
Robinson
- Curved and globe-like
- Displays info across oceans well
- Solves some problems with mercator
- Everything (shape, size, distance, direction) is a little distorted
Mercator
- Flat map
- Shape distorted very little
- Direction consistent
- Meridians and parallels meet at right angles like irl
- Relative size is very distorted, especially towards the poles
What is a geographic grid
A system of imaginary arcs drawn in a grid pattern on Earth’s surface
Longitude-> name of lines, center, how other lines are measure
- Meridians
- Prime meridian-> 0 degrees
- On opposite side of globe is 180 degrees and between 180 and 0 the lines are measured with east or west if they are east or west of prime meridian
Latitude->name of lines, center, how other lines are measure
- Parallel
- Equator-0 degrees
- 90-90 n/s of equator
- The 90s represent north and south poles
How many time zones are there
24
What is the international date line
- Kind of follows 180 degrees
- You turn the clock + 24 hrs if you go east (to America) and -24 hrs if you go west (to China)
What is geographic information science (GIScience) How does it help geographer
- Involves development and analysis of data about Earth acquired through satellite and other electronic information technologies
- Allows geographers to access info about Earth
Remote sensing def
Getting data about Earth’s surface from a satellite orbiting Earth or from other long-distance methods
Global positioning system (GPS)
Def
System that accurately determines the precise position of something on earth
Global positioning system (GPS)
How does it work
- Satellites are placed into orbits
- Tracking stations monitor and control the satellites
- A reciever that can locate 4+ satellites figures out the distance to each and uses that info to pinpoint its own location and yours
Global positioning system (GPS)
Most commonly used for
Navigation: Planes, ships, driving, monitoring delivery, getting emergency help, cell phones, scocial media
GIS
- Geographic information system
- Stores layers of data
- Stores and manages geographic data
What kind of info is stored in GIS
- Roads
- Bodies of water
- Names of place
- Cities
GIS: Mashup
-Overlaying layers
-Mixing tow pieces of data so you can see both at same time
EX: seeing roads and state boundaries
What is dif between place and location
Place: A specific point on earth distinguished by a particular characteristic
Location: the position that something occupies on earth’s surface
-Place is a section of earth, location is where it is
Three ways to identify location
- Place name
- Site
- Situation
Toponym
The name given to a place on Earth
For ways in which a place can receive its name
Named after:
- A person
- Associated with religion
- Derived from ancient history
- May indicate the origin of its settlers
Site def
The physical character of a place
Five examples of site characteristics
- Climate
- Water sources
- Topography
- Soil
- Vegetation
- latitude
- Elevation