GeoLogic Mapping C

[freed2003]

yup yup

[UTF-8 U+6211 U+662F]

Define and give an example of an equal-area map projection.

[freed2003]

Click to Show Answer

An equal-area map projection is one that preserves the area of the region as it is on the earth but sacrificing the shape or angle of the region. An example is the Hammer projection

[UTF-8 U+6211 U+662F]

Click to Show Answer

An equal-area map projection is one that preserves the area of the region as it is on the earth but sacrificing the shape or angle of the region. An example is the Hammer projection

Yep!

Slight nitpick in wording (Click to Show Hidden Text)

Equal-area maps don't preserve the exact area of the region (because then the map would be huuuge). Areas are preserved divided by a scale factor specific to the map.

Your turn!

[freed2003]

nah that's not nitpicky i looked back and I worded it weird lol.

On a topographic map, what way do the contour lines point when crossing a stream?

[UTF-8 U+6211 U+662F]

nah that's not nitpicky i looked back and I worded it weird lol.

On a topographic map, what way do the contour lines point when crossing a stream?

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They are shaped like Vs pointing upstream?

[freed2003]

nah that's not nitpicky i looked back and I worded it weird lol.

On a topographic map, what way do the contour lines point when crossing a stream?

Click to Show Answer

They are shaped like Vs pointing upstream?

Yess

[UTF-8 U+6211 U+662F]

How do you calculate the gradient on a topo map?

[HugoTroop]

How do you calculate the gradient on a topo map?

answer (Click to Show Hidden Text)

 Measure the distance between two locations on the map where you wish to find the average gradient. Use the map scale to convert this to actual distance. Next, determine the elevation change based on the contour lines. You now have the rise and the run, and dividing them will give you gradient.

[UTF-8 U+6211 U+662F]

How do you calculate the gradient on a topo map?

answer (Click to Show Hidden Text)

 Measure the distance between two locations on the map where you wish to find the average gradient. Use the map scale to convert this to actual distance. Next, determine the elevation change based on the contour lines. You now have the rise and the run, and dividing them will give you gradient.

Yep, your turn!