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Questions and Answers
What is the primary purpose of contour lines on a topographic map?
What is the term for the height of an object above sea level?
What is the function of an index contour on a topographic map?
What is the term for the difference in elevation between the highest and lowest points on a topographic map?
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What is the significance of the spacing of contour lines on a topographic map?
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What are some of the real-world applications of topographic maps?
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What do contour lines on a topographic map represent?
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What is the purpose of the contour interval on a topographic map?
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What is the significance of the color brown on a topographic map?
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What can be inferred from closely spaced contour lines on a topographic map?
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What is the purpose of an index contour on a topographic map?
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What can be studied using a topographic map?
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Study Notes
Topographic Maps
- A graphical representation of the 3D shape of the earth's surface, showing elevation and shape.
Elements of Elevation
- Contour: imaginary lines that join places having the same height above sea level, shown in brown color.
- Contour lines: used to show elevations.
- Contour interval: the vertical distance that separates every contour line on a topographic map.
Representation of Elevation
- Contour lines represent elevation on a topographic map.
- Spacing of contour lines indicates the steepness of the slope.
- Closely spaced contour lines indicate steep slopes, while widely spaced contour lines indicate gentle slopes.
Additional Information
- Elevation symbols and color coding provide additional information about elevation.
- Index contour: a darker, heavier contour line, usually every fifth line, labeled by elevation.
Landforms and Landscape
- Elevation, relief, and slope of different landforms influence the appearance and characteristics of the landscape.
- Relief: the difference in elevation between the highest and lowest point of the area being mapped.
Real-World Applications
- Topographic maps have real-world applications in land use planning, construction, and environmental studies.
- Examples of applications include:
- Land use planning
- Construction
- Environmental studies
Topographic Maps
- A graphical representation of the 3D shape of the earth's surface, showing elevation and shape.
Elements of Elevation
- Contour: imaginary lines that join places having the same height above sea level, shown in brown color.
- Contour lines: used to show elevations.
- Contour interval: the vertical distance that separates every contour line on a topographic map.
Representation of Elevation
- Contour lines represent elevation on a topographic map.
- Spacing of contour lines indicates the steepness of the slope.
- Closely spaced contour lines indicate steep slopes, while widely spaced contour lines indicate gentle slopes.
Additional Information
- Elevation symbols and color coding provide additional information about elevation.
- Index contour: a darker, heavier contour line, usually every fifth line, labeled by elevation.
Landforms and Landscape
- Elevation, relief, and slope of different landforms influence the appearance and characteristics of the landscape.
- Relief: the difference in elevation between the highest and lowest point of the area being mapped.
Real-World Applications
- Topographic maps have real-world applications in land use planning, construction, and environmental studies.
- Examples of applications include:
- Land use planning
- Construction
- Environmental studies
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Description
Understand the graphical representation of the earth's surface showing elevation and shape, including contour lines, elevation, and relief.
