Images:Composition Book: http://upload.wikimedia.org/wikipedia/commons/e/e5/Composition_book.jpgTopographic Map Example: Courtesy of the US Geological SurveyNotepad and pencil: http://upload.wikimedia.org/wikipedia/commons/f/fe/Crystal_clear_right_to_left.png
Andes Mountains Satellite Image: http://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Andes_70.98343W_35.78028S.jpg/800px-Andes_70.98343W_35.78028S.jpgSatellite orbiting planet: http://upload.wikimedia.org/wikipedia/commons/5/59/Spac0558_-_Flickr_-_NOAA_Photo_Library.jpg
12 s080702 e_topography-1
As we go through the power point, please do the following: topography The study… Match your cards. Take notes in your science notebook. Label your map.
The study of the shapes and features of the Earth’ssurface.
Shows the three dimensional shape andelevations of an area of land in two dimensions
Line that connects places on a topographic mapthat are all at the same elevation (eventually aclosed loop) Label the contour lines on your map. Contour line
The vertical difference in elevation between neighboring contour lines Label the contour line interval on your map.contour line interval
The difference between the highest elevation point and the lowest elevation point on a map 200 300 400Units = feetWhat is the relief of this map?What is the contour interval of this map?
Contour lines are closely spaced on steep slopes. Contour lines are widely spaced on gentle slopes.
Where a contour line crosses a stream or valley, thecontour line bends to form a “V” that pointsupstream. In the upstream direction, the successivecontours represent higher elevations.
Contour lines near the top of a hill form closed, circular shapes. The top of the hill is higher than the highest closed contour line.
Depressions without outlets are shown by closed hatched contours. The contour lines have short lines on the inside that are pointing down slope. The bottom of the depression is lower than the lowest closed contour line.
A map made of pictures of the Earth taken from asatellite orbiting the Earth.