6.4.2. Raster Data Model

Try these first

1. 1.

   What does the Raster Data Model represent?

   Hint

   Think about types of data that do not stay constant.

2. 2.

   What is a pixel in the Raster Data Model?

   Hint

   Consider how images are made up of many tiny dots.

3. 3.

   What structure does the Raster Data Model use to represent data?

   • Points
   • Lines
   • Grid cells

   Hint

   Think about how images are divided into smaller sections.

4. 4.

   True or False: Raster data is always in high detail.

   • True
   • False

   Hint

   Consider different levels of images.

5. 5.

   Discuss how changes in raster resolution can impact analyses made in GIS applications such as land use planning.

   Hint

   Think about the balance between quality and performance.

6. 6.

   Analyze a hypothetical scenario where a city uses raster data to assess flood risk. What factors should be considered, and how would raster data benefit this assessment?

   Hint

   Consider the relationships between physical geography and flood risk.