GIS - anyone good at this???

EM334/534 Introduction to GIS 1

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())*+,-.,/'0' Note: E M334 students answer questions 1, 2, 3 and 4 only; while E M534 students answer all five questions.

Value: (20%) Due Date: 22 March 2013 Rationale:

To demonstrate understanding of key GIS concepts related to data and data storage

Ability to carry out independent research on error issues in GIS.

Question 1 [4 marks] [Maximum of 200 words]

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] a polygon in a GIS data base is

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.