1. GeoSpatial Revolution: Contemporary Tools of Geography
AP Human Geography
Nature and Perspectives of Geography Unit

2. For today, 09/03
Pick up a Video Analysis and a Unit Overview. Also, get out your Cornell Notes over pages

3. Revisiting yesterday…
The type of map shown is best described as a
1. physical map
2. reference map
3. isoline map
4. dot map
5. chloropleth map
The shaded areas in the map above illustrate the distribution of
1. cattle
2. cotton
3. rice
4. tobacco
5. sheep

4. D: define E: explain E: example D: draw
Chargers, do your DEEDS!
D: define E: explain E: example D: draw
In groups, you will need to DEEDs these three geographic tools: (1.) Remote sensing (2.) Geographic information system (GIS) (3.) Global positioning system (GPS)

5. Remote Sensing
Definition: the acquisition of data about Earth’s surface from a satellite orbiting Earth or from other long-distance methods.
Explanation: at any moment a satellite sensor records the image of a tiny area, called a pixel. Scanners are detecting the radiation being reflected from that tiny area. A map created by remote sensing is essentially a grid that contains many rows of pixels.
Example: geographers use remote sensing to map the changing distribution of a wide variety of features, such as agriculture, drought, and urban sprawl.

6. Global Positioning System (GPS)
Definition: a system that determines the precise position of something on Earth.
Explanation: 24 satellites were placed in predetermined orbits by the U.S. military. These satellites are controlled and monitored by tracking stations. A GPS receiver can locate at least 4 satellites, figure out the distance to each, and use this information to pinpoint its own location.
Example: GPS can be used to find the precise location of a moving vehicle and offer directions. Cell phones equipped with GPS can allow you to share your location with others (Facebook – check in )

7. Geographic Information System (GIS)
Definition: a computer system that captures, stores, analyzes, and displays geographic data.
Explanation: the position of any object on Earth can be measured and recorded with mathematical precision and then stored in a computer. A map can be created by asking the computer to retrieve stored information and use it to form an image. Each type of information can be stored in a layer. Layers can be compared to show relationships among different kinds of information. “Mashup” refers to the practice of overlaying data.
Example: maps showing where cancer rates are relatively high can be combined with layers showing the location of people with various incomes and ethnicities, the location of different types of factories, and the location of mountains and valleys.