The use of technology in Geography

GIS – Geographic information systems

• “A GIS is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information”

• http://egsc.usgs.gov/isb/pubs/gis_poster/• GIS’ can analyze multiple types of geographic

information at the same time.

Examples of GIS

Examples of GIS

• “It is possible to combine agricultural records with hydrography data to determine which streams will carry certain levels of fertilizer runoff.” http://egsc.usgs.gov/isb/pubs/gis_poster/

• The GIS can be used to predict the amount of runoff in the stream.

• GIS’ can be used to produce graphics to show the analysis of information for people who make decisions about resources.

GPS – Global Positioning system

How does GPS work?

THREE PARTSThere are 24 satellites in space that orbit the earth.

Users can hold receivers in their hands or mount in their cars.

There are five ground stations around the world that make sure satellites are working properly. http://www.loc.gov/rr/scitech/mysteries/global.html

How does GPS work?

• http://scign.jpl.nasa.gov/learn/gps2.htm• http://library.thinkquest.org/05aug/01390/ani

mation.htm• http://gpssystems.net/how-does-gps-work/

Google Maps

• http://www.youtube.com/watch?v=mpcar4L_EXY

Internet• Every email address looks something like this….

Raquel.helton@granburyisd.org...they always have an “@” sign

• WWW stands for World Wide Web• HTTP stands for hyper text transfer protocol• HTTPS stands for “ “ but the S stands for SECURE• HTTPS offers three things….– Protection– Authentication– Encryption