GS 608
: Introduction to GPS: Theory and Applications
Spring Quarter 2006
Distributed
: March 31 2006
Date Due
: April 7 2006
Problem Set 1
The purpose of this lab and lab 2 is to get familiar with coordinate transformation
problem and learn about the tools available for datum transformation on line (NGS
web page).
1.
Reference systems.
a.
Visit the following web page (if you have not done it already):
http://www.colorado.Edu/geography/gcraft/notes/datum/datum_f.html
and
print the section: Geodetic Datum Overview including the figures. We have
covered most of this material in class, but please, use this writeup as further
reference.
b.
Define reference system and explain what is the difference between the local
and global datum (reference system).
c.
What is the difference between geographical and geodetic latitude, longitude
and height? For what types of applications (say in mapping) would you
recommend using geodetic vs. geographical coordinates?
2.
Cartesian to (from) geographical (geodetic) coordinate conversion.
a.
Using the class notes distributed last/this week, do the following coordinate
conversion:
i.
Given geographical coordinates: Latitude = 40
°
N, Longitude = 83
°
W,
h= 210 m, convert them to 3D Cartesian coordinates X, Y and Z. Use
the radius of the reference sphere r = 6371 km.
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 Spring '06
 BRZEZINSKA
 Geodesy, Geographic coordinate system, Geodetic Datum Overview, geodetic coordinates

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