Part 2 – ArcMap Activity
GEO 265: Introduction to GIS
2 MIDTERM EXAM – Due Tuesday, February 10, 2015 (before 12:59pm)
Instructions
This exam consists of multiple parts that will be completed both in-class and outside of class. The entire exam is “open book” meaning that you can use your textbook, on-line resources (i.e. ESRI help), or any resources EXCEPT your peers. This is an individual assignment and all answers must be adequately cited or put into your own words. Plagiarized answers will results in a zero.
Follow the instructions at the beginning of each section. The Midterm should be submitted through email to the instructor by 12:59 pm on Tuesday, February 10, 2015 (BEFORE CLASS).
Deliverables
Answer the following questions and produce the following outputs. It should be typed, well-organized, and submitted in PDF format.
PART I
GIS Applications
In class we watched the first part of the Geospatial Revolution series that looks at a variety of applications of GIS in different industries. Watch one (or all) of the next three episodes (2, 3, or 4) and answer the following questions.
1. Choose ONE application from the series and answer the following questions in a couple of sentences:
a. How is GIS being used for this particular industry/application?
b. What are the benefits of using GIS?
c. What is one other example of how GIS could be applied within this industry?
PART II
Geographic Concepts
2. Briefly answer the following questions in a couple of sentences:
a. What are the 5 components of GIS?
b. List one GIS file type and explain when you would use it.
c. Explain why and when you would need to use Georeferencing tools.
d. How is a geodetic datum related to coordinate systems?
e. Explain the difference between the ‘define projection’ and ‘project’ tool?
3. Give me an EXAMPLE (not definition) of:
a. Geographic Coordinate System
b. Projected Coordinate System
c. Geographic Feature
d. Discrete data
e. Continuous data
Part III
Multiple Choice (make your answer bold)
1| What would be an appropriate map projection on a map of Miami, FL?
a. NAD 1983
b. Florida State Plane East
c. UTM Zone 10N
d. WGS 1984 Plate Caree
2| A map that showed land ownership as private, federal, or state would be displaying what kind of attribute?
a. Ordinal
b. Nominal
c. Ratio
d. Interval
3| Which of the following is NOT a function of GIS?
a. Capture data
b. Query data
c. Transpose data
d. Produce output
4| The map below shows:
[pic]
a. State plane zones
b. UTM zones
c. Standard meridians
d. Standard parallels
5| A “datum transformation” is always required in which of the following situations?
a. When converting from vector to raster data
b. When changing from one projected coordinate system to another
c. When changing the linear units of the coordinate system
d. When changing from one geographic coordinate system to another
6| A map layer is:
a. A type of vector data file format
b. A term used only for raster data
c. A collection of features with the same geometry and attributes
d. Another term for an attribute table
7| What does it mean to have an undefined projection?
a. The projection is in latitude and longitude
b. The dataset has no geographic coordinates
c. No file exists to describe the projection information
d. The dataset has a geographic coordinate system, but no projected coordinate system
8| Which statement is true for a shapefile?
a. Lines that share a node are connected
b. Polygons must not overlap
c. Polygons that share a line are continuous
d. None of the above
9| The true shape of the Earth is a(n)
a. Sphere
b. Ellipsoid
c. Earthoid
d. Geoid
10| The most commonly used vector data format is the:
a. Shapefile
b. Geodatabase
c. Coverage
d. TIN
Part IV
Using ArcGIS Tools
• Open a new, blank map. On the classroom computers, connect to the Metro RLIS data folder on the C://data/RLIS (only in SS110), and find the following datasets:
➢ City outlines: “cty_fill” shapefile (found in BOUNDARY folder)
➢ Parks: “parks” shapefile (found in LAND folder)
➢ River outlines: “riv_fill” shapefile (found in WATER folder)
➢ Trails: “trails” shapefile (found in TRANSIT folder)
• Zoom into the downtown Portland area and find Washington Park. Examine the attributes for Washington Park.
1.
2.
3.
4.
5. Who is the custodian of Washington Park?
• Open the Trails attribute table. Find the appropriate attribute field to get the total (sum) length of all trails.
6. What is the total trails length?
7. What are the units? How do you know?
• In the Trails attribute table, select only the “Regional” system type trails. Export the selected trails to create a new dataset, and add the new regional trails dataset to your data view.
• Change the symbology of your datasets to appropriate colors/symbols so that you can clearly distinguish all of the different layers (City outlines, Parks, River outlines, Trails, and Regional trails).
• Switch to the appropriate view for creating your overall map.
8. What view must you be in to create your map?
• Change the page orientation to Landscape view.
• Add a second data frame to your map layout, and add all of the shapefiles from your original data frame into your new data frame.
• The main (larger) data frame will show Portland and its suburbs, while the inset data frame will show a close-up of downtown Portland.
• Add a title, legend, and scale bar to the map and include your name somewhere in the map layout.
9. Export the map as a .jpg and insert into your midterm doc.
PART V
Downloading GIS Data & Projections
You are a GIS intern at the Network of Oregon Watershed Councils, and have been assigned to make a general map of Oregon watershed council boundaries and major features. You will need to find multiple GIS datasets, assign a projection, and create a simple map.
• Go to the Census Bureau’s TIGER/Line website to download the 2010 cartographic boundary for the state of Oregon (). You are specifically looking for the ‘State and State Equivalent’ shapefile. You’ll have to navigate through the site to access the shapefile you will need (Hint: You’ll have to choose the 2010 TIGER/Line Shapefiles). Save and unzip the downloaded file.
•
1.
2.
3.
4.
5.
6.
7.
8.
9. What is the State shapefile name? What does it mean?
• Open up a new blank map, and add the State shapefile.
10. What is the coordinate system of the Oregon state shapefile?
• We want to assign it the same coordinate system as some of the other datasets we will be adding to the map – the Oregon statewide Lambert Conformal Conic (NAD83, International Feet). Use the appropriate tool in ArcToolbox to create a dataset of the state of Oregon in the statewide projection listed above.
11. Which tool did you use and why?
• Look at your map’s data frame Properties.
12. Does your data frame have an assigned coordinate system? If so, what is it? Explain why it does or does not have an assigned coordinate system.
• Whether or not your data frame already has an assigned coordinate system – before adding the next shapefile, assign the “NAD 1983 Oregon Statewide Lambert (Intl Feet)” projection to the data frame. (If the State layer no longer displays, use the “Zoom to Layer” or “Full Extent” tools.)
13. Describe how you assigned the data frame projection.
• Go to the Oregon Geospatial Data Clearinghouse () and download (then unzip) the following datasets:
➢ Rivers (EPA 1:250,000) shapefile
➢ Waterbodies (USGS, 1:2,000,000) shapefile
➢ Oregon Watershed Council Boundaries (OWEB) shapefile
• Add the rivers, waterbodies, and watershed council boundaries datasets to your map view. Change the appearance of the datasets to appropriate colors and/or symbols (for example, rivers are usually a shade of blue). Display only an outline color (i.e. no fill color) for the following layers: state boundary (from the Census), and the watershed council boundaries.
• Switch to the map layout and make sure that all four layers display: State boundary, rivers, waterbodies, and watershed council boundaries. (Make sure that all layers are clearly visible on the map.)
• Add a map title, legend, scale bar, and your name.
14. Export your map as a .jpg and insert into your Midterm document.
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