Question 1 [4 marks] [Maximum of 200 words]
Explain the term ‘Metadata’ as related to a GIS. Discuss why this is becoming
an important part of most GIS and what problems you are likely to face if you
had to work on a GIS developed by someone else but there was no metadata
attached to it.
Question 2 [4 marks] [Maximum of 300 words]
“Whether a feature is represented as a point or a polygon in a GIS data base is
entirely dependent on the nature of the phenomena itself.”
Do you agree with this statement? Explain
Question 3 [6 marks] [Maximum of 400 words]
Review the issues involved in selecting a resolution for a raster GIS project.
What resolutions would be appropriate for the following problems: (a)
determining logging areas in a National Forest, (b) finding suitable locations for
backcountry campsites, (c) planning a national highway from Melbourne to
Darwin?
Question 4 [6 marks] [Maximum of 600 words]
Write an essay discussing the raster and vector data models. In your
discussion include issues such as: the strengths and weaknesses of the two
models, the costs of setting up the two data models, common sources of data
for the 2 models, different scenarios in which one model would be preferred
over the other, and why most spatial datasets have data in both formats. Give
examples where possible. EM334/534 Introduction to GIS 2
Question 5 [Approximately 2000 words]
Write a detailed essay on “Datums and Map Projections”. In your discussion,
include issues such as:
The importance of datums and map projections
Some common map projections in current use
The map projections used in Australia
A time line of map projection changes in Australia
Why all data layers within a GIS analysis need to be in the same map
projection.
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