Using GIS desire lines to visualise migration
I can use GIS desire lines to visualise migration.
- Year 11
- AQA
Using GIS desire lines to visualise migration
I can use GIS desire lines to visualise migration.
Lesson details
Key learning points
- Desire lines can be created using GIS to visualise migration.
- Filters can be used in GIS to declutter a map showing many desire lines.
- GIS desire lines can be configured to visualise migration proportionally.
- GIS desire lines can be configured with pop-ups to improve visualisation.
Keywords
Desire lines - a graphical technique using lines on a map to show the simple direction of movement from one place to another
Filter - the selection of data in a GIS layer which declutters a webmap to visualise spatial patterns more clearly
Great circles - straight line routes which appear curved because they take the curvature of Earth into consideration
Pop-up - in GIS, a read-only display of attribute information (e.g. text, images, charts) often linked to a location
Common misconception
Desire lines and flow lines are often confused.
Desire lines show a simple link between a source and destination; flow lines show the route taken between a source and destination.
Equipment
The lesson will require students to have access to a suitable IT device, e.g. laptop. Some tasks would be facilitated by the students using a mouse for more effective and faster control of the cursor.
Content guidance
- Depiction or discussion of sensitive content
Supervision
Adult supervision recommended