geomorphology mr. skirbst earth science topic 27
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Geomorphology
Mr. SkirbstEarth Science
Topic 27
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GeomorphologyGeo – earth
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GeomorphologyGeo – earth
Morph – form
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GeomorphologyGeo – earth
Morph – form
Geomorphology – “earth forms”or “landforms”
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GeomorphologyTopography
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GeomorphologyTopography
the shape of Earth’s surface
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GeomorphologyTopography
the shape of Earth’s surfaceit’s determined by landforms
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Geomorphology3 Main Landform Types:
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Geomorphology3 Main Landform Types:1. Mountain – high elevations
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Geomorphology3 Main Landform Types:1. Mountain – high elevations2. Plain – flat, close to sealevel
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Geomorphology3 Main Landform Types:1. Mountain – high elevations2. Plain – flat, close to sealevel3. Plateau – flat, high elevation
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Maps
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MapsMeridian (longitude)
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MapsMeridian (longitude)
lines from North to South poles
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MapsMeridian (longitude)
lines from North to South polesmeasure distances East / West
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MapsMeridian (longitude)
lines from North to South polesmeasure distances East / Westmeasured in 180o from Prime
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MapsMeridian (longitude)
lines from North to South polesmeasure distances East / Westmeasured in 180o from Primemeasured as E or W longitude
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MapsParallel (latitude)
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MapsParallel (latitude)
lines parallel to Equator
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MapsParallel (latitude)
lines parallel to Equatormeasures distance North/South
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MapsParallel (latitude)
lines parallel to Equatormeasures distance North/Southmeasured from 0 to 90o
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MapsParallel (latitude)
lines parallel to Equatormeasures distance North/Southmeasured from 0 to 90o
measured as North/South latitude
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Topographic Maps
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Topographic MapsShow the relief of the land
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Topographic MapsShow the relief of the landRelief (topography) shown with
contour lines
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Topographic MapsShow the relief of the landRelief (topography) shown with
contour linesContour lines – lines of equal
elevation
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Local Landforms
Rivers, streams, drainage areas
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Local Landforms
Rivers, streams, drainage areasMountains, hills, mounds
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Local Landforms
Rivers, streams, drainage areasMountains, hills, moundsValleys, depressions, quarries
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Local Landforms
Rivers, streams, drainage areasMountains, hills, moundsValleys, depressions, quarriesPonds, swamps
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Local Landforms
Rivers, streams, drainage areasMountains, hills, moundsValleys, depressions, quarriesPonds, swamps, wetlandsFlood plains, steep slopes
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Interpreting Topographic MapsBasic Rules: Contour lines …..1. … never cross
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Interpreting Topographic MapsBasic Rules: Contour lines …..1. … never cross2. … close together = steep slope
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Interpreting Topographic MapsBasic Rules: Contour lines …..1. … never cross2. … close together = steep slope3. … far apart = gentle slope
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Interpreting Topographic MapsBasic Rules: Contour lines …..1. … never cross2. … close together = steep slope3. … far apart = gentle slope4. … form loops around hills / holes
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Interpreting Topographic MapsBasic Rules: Contour lines …..1. … never cross2. … close together = steep slope3. … far apart = gentle slope4. … form loops around hills / holes5. … form “V’s” in valleys and point
upstream (or uphill)