Topographic Maps/Field Maps

27 terms by jhaasbroda Plus

Create a new folder

Advertisement Upgrade to remove ads

relief

difference in elevation between highest and lowest points

elevation

height above mean sea level

contour lines

lines that connect point of equal elevation

index contour

every fifth contour is darker and labeled by elevation

legend

key to map symbols

magnetic north

direction of magnetic north pole (what the compass points to)

true north

direction of geographic north pole

magnetic declination

difference between true north and magnetic north

contours that cross a stream

form a "v" shape and flows towards the open part of the "v"

concentric circles

shows a hill

Representative Scale (R.F. or scale)

how many times the map has been reduced,ie 1:1,000,000

isotherm

lines that connect points of equal temperature

isobar

lines that connect points of equal pressure

polyconic projection

map projection use to draw topographic maps

latitude

distance in degrees north and south of the Equator

longitude

distance in degrees east and west of the Prime Merdian

depression contour

use to show craters and hollows on a map

bench mark

places where exact elevations are shown on permentant plates

USGS

United States Geological Survey. Responsible for making topographic maps and other maps

7.5 minute quadrangle

USGS map series

gradient

slope or how steep the land is

level land

shown by contour lines far apart

steep land

shown by contour lines close together

profile

shows elevation changes across a map section

remote sensing

methods include Landsat and imaging radar

field map

map where a physical feature is measured

contour interval

difference in elevation between one contour line and the next contour line (vertical distance)

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set