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GES512S - GEOGRAPHIC INFORMATION SYSTEMS 1 - 2ND OPP - JAN 2024 |
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nAmlBIA unlVERSITY
OF SCIEnCE Ano TECH n OLOGY
FACULTY OF ENGINEERING AND THE BUILT ENVIRONMENT
DEPARTMENT OF LAND AND SPATIALSCIENCES
QUALIFICATIONS:
DIPLOMA IN GEOMATICS, BACHELOR OF GEOMATICS, BACHELOR OF GEOINFORMATION
TECHNOLOGY,DIPLOMA IN LAND ADMINISTRATION, BACHELOROF LAND ADMINISTRATION,
BACHELOROFTOWN AND REGIONALPLANNING,BACHELOROF PROPERTYSTUDIES,DIPLOMA IN
PROPERTYSTUDIES,BACHELOROF REGIONAL& RURALDEVELOPMENTBACHELOROF NATURAL
RESOURCEMANAGEMENT, BACHELOR OF NATURAL RESOURCEMANAGEMENT IN NATURE
CONSERVATION
QUALIFICATIONSCODES:
LEVEL: 5
06DGEO,07BGEO,06DLAD, 07BLAM,
07BTAR,06DPRS,08BPRS,07BRAR,
07BNRS, 07BNTC
COURSECODE:GES512S
COURSENAME: GEOGRAPHICINFORMATION
SYSTEMS1
DATE: JANUARY2024
SESSION: 1
DURATION: 3 HOURS
MARKS: 100
SECOND OPPORTUNITY/ SUPPLEMENTARY EXAMINATION QUESTION PAPER
EXAMINER:
MS ROXANNEMURANGI
MODERATOR: MR MIGUEL VALLEJO
INSTRUCTIONS
1. Write your student number on each answer sheet used.
2. Answer ALL the questions.
3. Read each question carefully before attempting to answer.
4. Write clearly and neatly.
PERMISSIBLEMATERIALS
1. Pen
2. Pencil
3. Ruler and Eraser
This paper consists of three (3) pages (excluding this cover page)
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Geographic Information Systems 1
Question 1
Define the following terms in the GIScontext:
1.1. Buffer
1.2. Layer
1.3. Vector
1.4. Database
1.5. Intersect
GES512S
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[10]
Question 2
2.1. Briefly explain what the purpose of GISis.
(4)
2.2. Geographic Information Systems (GIS)consist of five components. Name any three of
the components and explain briefly what role they play.
(6)
2.3. In your own words, discussthe term geographic information. Provide two examples of
geographic features that can be represented by a point, line, and polygon on a map. (8)
2.4. There are five types of questions that a sophisticated GIS can answer. Provide any
three questions with suitable explanations or examples of what a geographical
(6)
information system can answer.
[24]
Second Opportunity Question Paper
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January 2024
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Geographic Information Systems 1
Question 3
3.1. What is a Map Projection?
3.2. Explain the one problem of a map projection.
3.3. Briefly explain what a local datum is.
3.4. Briefly discuss what a vertical datum is.
3.5. Describe the three types of map projections by the distortion properties.
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[16]
Question 4
4.1. The town council of Gobabis hired you as a GISconsultant. To identify a potential site
to establish a landfill for the town. You have been tasked to locate a new dumpsite for
their town to safely dispose of their waste by using GISmethods and techniques.
a) List at least five geographic datasets you will need to carry out the analysis.
(S)
b) List any two methods of spatial analysis that would be acceptable for this study to
locate the new landfill site.
(2)
c) Provide at least three spatial criteria for locating an appropriate landfill site. (Hint
focus on proximity analysis).
(9)
4.2. Discuss what selection by location query is. List the three most typically used options
for selection by location query.
(4)
4.3. There are three types of vector-based overlays. Briefly discuss the point-in-polygon
and line-in-polygon overlays.
(4)
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January 2024
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Geographic Information Systems 1
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4.4. Explain the concept of utilising counts and cell values within a raster data model.
(4)
[28)
Question 5
5.1. Assume you are tasked with creating a map that shows the number of COVID-19 cases
reported in each region of Namibia. What type of map and other GIS outputs will you
produce? Motivate your answers.
(6)
5.2. Based on the data type used in the map type mentioned in Question 5.1 to indicate the
number of COVID-19casesper region, indicate the data type used and name three rules
for the classification of the data type used.
(4)
5.3. Name four essential map elements that should be inserted in the map created in
Question 5.1.
(4)
5.4. There are three types of thematic maps. Briefly explain what a choropleth map is
Provide two examples and the data type used to display the data.
(4)
S.S. Briefly discuss what a chorochromatic map is. Provide any three examples of a
chorochromatic maps.
(4)
[22)
Second Opportunity Question Paper
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January 2024