Created by: Scott Kelly 2010
Original image source: ESA
Image Source: Cabalas
Image Source: Trillium Wood Golf Club
Image Source: USGS
Image Source: Schriever Air Force Base
Define the size and shape of the
earth
Used as basis for coordinate
systems
Variety of models:
- Flat earth
- Spherical
- Ellipsoidal
WGS 84 defines geoid heights
for the entire earth
11
Based on Geodetic Datum
Describe locations in two or three
dimensions (ie. X,Y,Z or X,Y)
Local and Global
Common systems
Geodetic Lat, Long (global)
UTM (local)
State Plane (local)
Variety of transformation methods
Image Source: topofusion.com/jamboree
Image Source: http://www.4x4books.com/mttngps.htm
Image Source: http://www.leica-geosystems.com/en/News-Archive_57049.htm?id=1319
Original Image Source:
Wired.com
Image Source:
http://202.28.94.55/web/322103/2551/work1/g178/home.html
and others
Image Source: blog.doc.govt.nz/2009/08/