This activity has been reviewed by 2 review processes (view details)

This activity was selected for the On the Cutting Edge Reviewed Teaching Collection

This activity has received positive reviews in a peer review process involving five review categories. The five categories included in the process are
- Scientific Accuracy
- Alignment of Learning Goals, Activities, and Assessments
- Pedagogic Effectiveness
- Robustness (usability and dependability of all components)
- Completeness of the ActivitySheet web page
For more information about the peer review process itself, please see https://serc.carleton.edu/teachearth/activity_review.html.
This activity has benefited from input from faculty educators beyond the author through a review and suggestion process. This review took place as a part of a faculty professional development workshop where groups of faculty reviewed each others' activities and offered feedback and ideas for improvements. To learn more about the process On the Cutting Edge uses for activity review, see http://serc.carleton.edu/NAGTWorkshops/review.html.

Initial Publication Date: August 17, 2010 | Reviewed: January 16, 2015 (see revision history: 2 events)

Simple Spatial Analysis based on Raster Data Structure

Wei Luo, Northern Illinois University

Summary
This is a simple lab exercise early in the semester to teach student the limitation of raster data structure, simple buffer and overlay operation without using computer. It helps students to get in the habit of drawing flow diagrams.

Context

Type and level of course
entry level GIS

Geoscience background assumed in this assignment
none

GIS/remote sensing skills/background assumed in this assignment
raster data structure
basic concept of buffer and overlay

Software required for this assignment/activity:
none

Time required for students to complete the assignment:
1 lab period (2 hours)

Goals

GIS/remote sensing techniques students learn in this assignment
The purposes of this exercise are:
(1) to understand the limitations of a raster data structure
(2) to be familiar with the basic operations of spatial analysis: buffer and overlay.
(3) to practice draw flow diagram and the ability to think through how to solve a problem.

Other content/concepts goals for this activity

Higher order thinking skills goals for this activity
problem solving

Description of the activity/assignment

The purposes of this exercise are:
(1) to understand the limitations of a raster data structure
(2) to be familiar with the basic operations of spatial analysis: buffer and overlay.
We will determine the population at risk in an area if the gas pipe lines should rupture in an earthquake. As a simplification, the following criteria are used to determine the risk:
(A) any pipe line within 500 meters of a fault is at risk of rupture
(B) people within 500 meters of rupturing pipe line are at risk of injury

Determining whether students have met the goals

They will show a flow diagram that makes logical sense
They will produce buffer and overlay intermediate results and final map
More information about assessment tools and techniques.

URLs and References

Download teaching materials and tips

Activity Description/Assignment: Simple Spatial Analysis based on Raster Data Structure (Microsoft Word 428kB Aug9 10)
Instructors Notes:
Solution Set: