12 Questions
What do contour intervals on a topographic map represent?
Areas of equal elevation
What is the formula to find local relief?
Highest point - lowest point
What is the formula to find the gradient of a slope?
Rise / Run
What is the aspect of a slope?
The direction it faces
What is the purpose of contour lines on a topographic map?
To show the height above sea level
What is the local relief between two points?
The difference in their elevations
What do topographic maps allow geographers to identify?
Relief, aspect, and height above sea level
What do contour intervals on a topographic map show?
Areas of equal elevation
What is the local relief between two points on a topographic map?
The difference in elevation between the highest and lowest points
How is the gradient of a slope calculated?
By dividing the horizontal distance by the vertical interval
What is the aspect of a slope?
The direction a slope faces
What is the purpose of analyzing a topographic map?
To identify patterns in the landscape, such as relief, aspect, and elevation
Study Notes
Topographic Maps
- Allow geographers to identify landscape, gradient of a slope, relief, and aspect and height above sea level using contour lines
Contour Lines
- Represent areas of equal elevation on a map
- Steepness of slopes is also represented
- Contour interval represents the difference in elevation between two adjacent contour lines
- Example: 20ft contour interval on a specific map
Local Relief
- Difference in elevation between the highest and lowest points in a region
- Calculated using the equation: Highest point - Lowest point
- Example: Local relief between points Z and X is 80ft
Gradient
- Calculated using the equation: Rise (vertical interval) / Run (horizontal distance)
- Example: Gradient between R and S is 1:25 (simplified) or 80/2000 (unsimplified)
Aspect
- Direction a slope faces
- Examples:
- Point A: Southeast
- Point B: South
- Point C: Northwest
- Point D: West
- Mount Florence (AR8746): Southeast
Map Analysis
- Contour interval: 50 metres
- Local relief between points B and H: 100ft
- Gradient of A and B: 45/100
Topographic Maps
- Allow geographers to identify landscape, gradient of a slope, relief, and aspect and height above sea level using contour lines
Contour Lines
- Represent areas of equal elevation on a map
- Steepness of slopes is also represented
- Contour interval represents the difference in elevation between two adjacent contour lines
- Example: 20ft contour interval on a specific map
Local Relief
- Difference in elevation between the highest and lowest points in a region
- Calculated using the equation: Highest point - Lowest point
- Example: Local relief between points Z and X is 80ft
Gradient
- Calculated using the equation: Rise (vertical interval) / Run (horizontal distance)
- Example: Gradient between R and S is 1:25 (simplified) or 80/2000 (unsimplified)
Aspect
- Direction a slope faces
- Examples:
- Point A: Southeast
- Point B: South
- Point C: Northwest
- Point D: West
- Mount Florence (AR8746): Southeast
Map Analysis
- Contour interval: 50 metres
- Local relief between points B and H: 100ft
- Gradient of A and B: 45/100
This quiz covers the basics of topographic maps, contour lines, and local relief, including how to identify landscape features and understand elevation differences.
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