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