topographic maps. warm up 1.what is the reference line for longitude? 2.when plotting coordinates,...
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![Page 1: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/1.jpg)
Topographic Maps
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Warm Up
1. What is the reference line for longitude?2. When plotting coordinates, which comes
first? Latitude or Longitude?3. How many centimeters are in 2.5 meters?
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![Page 4: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/4.jpg)
![Page 5: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/5.jpg)
Topographic Maps• Show elevation– How high or low the ground is
• Contour Lines: connects areas of equal elevation – Contour lines never cross!!
• Contour Interval: space between contour lines to show elevation change– Contour lines close together = steep elevation (like a
mountain or hill)
![Page 6: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/6.jpg)
TopographyA. Topography: the surface features of an area.B. This map shows the presence of an island but gives no
clue how tall the island is.
C. Topographic maps are 2 dimensional representations of 3 dimensional landforms.
![Page 7: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/7.jpg)
Building a Topographic
MapA. Always start at
Sea Level: 0.B. Select an
interval (on this map 10 ft).
C. Trace the land contour at each interval.
![Page 8: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/8.jpg)
Building a Topographic
MapD. When done,
you have a topographic map.
E. Now you know how high some features are compared to others.
![Page 9: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/9.jpg)
Reading a Topographic Map
A. Contour interval: the difference in elevation between 2 lines.
B. Index contour: elevation lines that are labeled and usually darker than others.
C. What is the contour interval of this map?1. Hint: pretend it’s a
thermometer. 20 ft
![Page 10: Topographic Maps. Warm Up 1.What is the reference line for longitude? 2.When plotting coordinates, which comes first? Latitude or Longitude? 3.How many](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649ea15503460f94ba4935/html5/thumbnails/10.jpg)
What is the height difference between points C and D?
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Special Symbols
Closed circle = hill or mountain top
Marks inside a circle= depression
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Mount Rainier Volcano, Washington State
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BE SURE TO CREATE A COLOR CODED KEY• Identify:– Prime Meridian– Equator– Quadrants:• NE• NW• SE• SW
– 7 Continents– 5 Oceans– The latitude and Longitude of a place you’d like to
visit.
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END