topographic map with animation
DESCRIPTION
TRANSCRIPT
![Page 1: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/1.jpg)
Topographic Maps
![Page 2: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/2.jpg)
What is a Topographic Map?
In contrast to most maps, a topographic map shows the shape of the Earth’s surface
by using contour lines.
![Page 3: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/3.jpg)
Contours are imaginary lines that join points of equal elevation above or
below sea level.
![Page 4: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/4.jpg)
Let’s take a walk up a hill!
![Page 5: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/5.jpg)
We’re now at an elevation of 100 meters.
100m
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Let’s keep going!
100m
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Now we’re at 200m.
100m
200m
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Shall we march on?
100m
200m
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We’ve made it to 300m!
100m
200m
300m
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On to the peak!
100m
200m
300m
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We’re on the peak, but what’s our elevation?
100m
200m
300m
![Page 12: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/12.jpg)
Any ideas?
100m
200m
300m
Let’sadd contour lines for every 50 meters and see if that helps.
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100m
200m
300m
We know that we are above 350m, but less than 400m.
50m
150m
250m
350m
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100m
200m
300m
Let’s head down the hill, it’s getting late!
50m
150m
250m
350m
![Page 15: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/15.jpg)
100m
200m
300m
Now what’s our elevation?
50m
150m
250m
350m
If you said somewhere between 200m and 250m you are right!
![Page 16: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/16.jpg)
100m
200m
300m
Let’s try this again!
50m
150m
250m
350m
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100m
200m
300m
What’s our elevation now?
50m
150m
250m
350m
If you said 50m or just under, you’re right!
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Let’s now look at the same hill, but the way we
might see it from an airplane!
![Page 19: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/19.jpg)
Each color change represents a 50 meter increase.
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Now, let’s try the same hike! Our elevation is 0 meters.
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Now what is our elevation?
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If you said more than 150 meters, but less than 200
meters your right!
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Let’s go a little higher.
![Page 24: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/24.jpg)
Think you know our elevation now?
More than 300meters
But less than 350meters
![Page 25: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/25.jpg)
If we were standing on the peak, what would be our
elevation?•More than 350 meters,
less than 400 meters
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Let’s head down hill.
![Page 27: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/27.jpg)
Know our elevation?
![Page 28: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/28.jpg)
More than 100 meters,
less than 150 meters
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Let’s see what you know.
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
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Grab a piece of paper and write your answers to the following questions.
Ready?
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1. Could the elevation at the peak (B) be 1410 meters?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
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2. What is the elevation at (E)?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
![Page 34: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/34.jpg)
3.What is the elevation difference between (A) and
(B)?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
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4. Could the elevation at (F) be 417 meters?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
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5. If you walked a straight line from (D) to (C) would you walk over a
ridge or down a valley?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
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6.Just looking at the map, would it be easier to head down from the peak going East, or going North?
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
E
N
S
W
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•1. No :The elevation must be under 1400 meters, but over 1300 meters.
•2. about 400 meters
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•3. (A) is probably close to the 750 meter line, (B) is above 1300 meters. The difference between the two would probably be 650 to 700 meters.
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•4. No: It must be more than 700 meters and less than 800 meters.
•5. Down a valley: If the contour lines point up the slope it’s a valley, if they point down the slope it’s a ridge.
![Page 41: Topographic map with animation](https://reader033.vdocuments.net/reader033/viewer/2022050815/547cc290b4af9fce158b51b7/html5/thumbnails/41.jpg)
•6. East: When contour lines are close together that means there is a steep slope, the further apart the lines, the more gentile the slope and therefore an easier walk! Go east!