Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Topographic Maps

No description
by

Rick Turner

on 19 February 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Topographic Maps

Topographic Maps A topographic map is a map that shows surface features, or topography, of Earth. Elevation is an object's height above sea level. The elevation at sea level is zero. Contour lines are lines that connect points of equal elevation.
Example: One contour line would connect points on a map that have an elevation of 100 ft. Another line would connect points on a map that have an elevation of 200 ft. The difference in elevation between one contour line an the next is called the contour interval.

Example: A map with a contour interval of 20 ft would have contour lines every 20 ft. of elevation change, such as 0ft, 20 ft, 40 ft, and so on. Relief is the difference between the highest and lowest points of the area being mapped. Contour lines that are close together show a steep slope. Contour lines that are spaced apart show a gentle slope. Index contour lines are darker, heavier contour lines that are usually every fifth line and are marked by elevation. The contour lines falling between the index contour lines are called intermediate contour lines. These lines are finer and do not have their elevations given. There are normally four intermediate contour lines between index contour lines. Supplementary contour lines resemble dashes. They show changes in elevation of at least one-half the contour interval. These lines are normally found where there is very little change in elevation, such as on fairly level terrain.
Full transcript