Assignment: Vector data input and Tables

Introduction to Geographic Information Systems in Forest Resources

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Assignment: Vector data input and Tables


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Download the Seattle Street Nework data set (snd.zip; don't right-click to download, use the regular left-click on the mouse) from the UW Washington Geospatial Data Archives (note: you will only be able to download this if you can connect to UW using WebLogin). Unzip the file and add the data theme it to a view. Create points at the intersections of these streets within the University area:

NE 43rd St & University Way NE
East Stevens Way NE & Whitman Ct NE
Brooklyn Ave NE & NE Boat St

Paste into your answers an image showing that you have created these points. (20)

Create a new line shapefile that connects the three points. Attempt to follow the existing street network. Include an image that shows the points and the new line theme. Make sure the lines you created are discernible from the street network. Show the legend in the image. (20)
Download table1.xls (an Excel spreadsheet). Paste in a screen capture of ArcView 3.x 's basic descriptive statistics (sum, count, mean, minimum, maximum, range, variance, standard deviation) of the Value field. (20)
Area to perimeter ratio is commonly used in Landscape Ecology as a measure of the relative amount of a polygon's edge. Smaller values of A/P indicate more edge conditions (imagine a rectangle measuring 1 m x 20 m and a rectangle measuring 2 m x 10 m; both of these have area of 20 m^2, but the former rectangle has an A/P ratio of 20/42, whereas the latter has an A/P ratio of 20/24). A/P ratio is easily calculated in a GIS as area / perimeter for each polygon.

Using the stands theme, report the name of the stand (use the field Standname2) with the largest area/perimeter ratio? Round to the nearest integer value. (20)
For all the different Soil.name types in the soils theme, which soil name has the lowest variance in perimeter (other than those with a variance of 0)? (20)

Answers

Syllabus	Schedule	Class Meetings	Assignments	Course Data	Internet Search
Current Grades	Contact Us	CFR 590	Internet-only section	Lab Locations

The University of Washington Spatial Technology, GIS, and Remote Sensing Page is provided by the College of Forest Resources and the College of Ocean and Fisheries Sciences through Unit-Specific UIF. Site administrator: Phil Hurvitz.