Introduction Flashcards
Map projections
Types of maps. They usually biased.
Mercator: most common and quite distorted in the north, small africa
Hobo-Dryer Equal: North and South can be switched.
Gall-Peters: Africa given appropriate size. Shapes distorted.
Cartography
Is the making of maps.
Limitations: Maps are summaries and are inherently disorted.
Continental Drift
The slow movement of continents controlled by the process associated with plate tectchonics.
Plate Tectonics
Plates are bonded portions of the Earth’s mantle and crust, averaging 60 miles in thickness. More than a dozen such plates exist, most of continental proportions, and they are in motion. Where they meet one slides under the other (subduction), crumpling the surface crust and producing significant volcanic and earthquake activity; a major mountain-building force.
Pacific Ring of Fire
Zone of crustal instability along “tectonic plate” boundaries, marked by earthquakes and volcanic activity, that ring the Pacific Ocean Basin.
Hydrologic Cycle
How much rain, how often? The system of exchange involving water in its various forms as it continually circulates between the atmosphere, the oceans, and above and below the land surface.
Climate
The long-term conditions (over the last 30 years) of aggregate (weather) over a region, summarized by averages and measures of variability; a synthesis of the succession of weather events we have learned to expect at any given location.
Climate Change
Natural global warming that has been accelerated by anthropogenic (human-source) causes. Since the Industrial Revolution, we have been emitting gasses that have enhanced nature’s (greenhouse effect) wherein the sun’s radiation becomes trapped in the Earth’s atmosphere.
Realms
Each realm is defined in a synthesis of its total human geography — a composite of its leading cultural, economic, historical, political, and appropriate environmental features.
Regions
An area on the Earth’s surface marked by specific criteria. Can be formal or functional region.
Transition Zones
Where geographic realms meet. Not sharp boundaries, mark contact. It is an area of spatial change where peripheries of two adjacent realm or regions join. Marked by a gradual shift than a sharp break.
Functional Region
A region marked less by its sameness then by its dynamic internal structure. Ex: urban centered center of interaction.
Formal Region
A type of region marked by a certain degree of homogeneity in one of more phenomona. I.e. japan
Hinterland
A term that applies to a surrounding area served by an urban center.
What is the world population and surface area?
Current world population: 7.05 billion
Occupying less than 30% of Earth’s surface
