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Questions and Answers
What does the UTM system use to represent the Earth?
What does the UTM system use to represent the Earth?
- A cylinder wrapped around a cube
- A rectangular prism
- A square grid system
- A cylinder wrapped around a spheroid (correct)
How do meridians of longitude behave as they approach the poles?
How do meridians of longitude behave as they approach the poles?
- They create a circular grid
- They become equidistant
- They form parallel lines
- They converge towards the poles (correct)
What determines the northerly direction on a UTM map?
What determines the northerly direction on a UTM map?
- The equator
- Grid South
- Magnetic North
- One specified meridian of longitude (correct)
When is Grid North identical to True North in the UTM system?
When is Grid North identical to True North in the UTM system?
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What type of grid system is formed by the UTM lines on a map?
What type of grid system is formed by the UTM lines on a map?
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Study Notes
UTM System
- The Universal Transverse Mercator (UTM) system is an example of a grid system.
- The UTM system uses a transverse Mercator projection, where the Earth's surface is wrapped around a cylinder that touches the spheroid along a chosen meridian.
- A meridian is a circle running around the Earth passing through both the North and South geographic poles.
- The UTM system's grid lines form a rectangular grid system, with north determined by a specified meridian of longitude.
- "Grid North" is aligned with true north only on the specified meridian.
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