Mr. Skirbst Earth Science Topic 27 Geomorphology Mr. Skirbst Earth Science Topic 27

Geomorphology Geo – earth

Geomorphology Geo – earth Morph – form

Geo – earth Morph – form Geomorphology – “earth forms” or “landforms”

Geomorphology Topography

Geomorphology Topography the shape of Earth’s surface

Geomorphology Topography the shape of Earth’s surface it’s determined by landforms

Geomorphology 3 Main Landform Types:

Geomorphology 3 Main Landform Types: Mountain – high elevations

Geomorphology 3 Main Landform Types: Mountain – high elevations Plain – flat, close to sealevel

Geomorphology 3 Main Landform Types: Mountain – high elevations Plain – flat, close to sealevel Plateau – flat, high elevation

Maps

Maps Meridian (longitude)

Maps Meridian (longitude) lines from North to South poles

Maps Meridian (longitude) lines from North to South poles measure distances East / West

Maps Meridian (longitude) lines from North to South poles measure distances East / West measured in 180o from Prime

Maps Meridian (longitude) lines from North to South poles measure distances East / West measured in 180o from Prime measured as E or W longitude

Maps Parallel (latitude)

Maps Parallel (latitude) lines parallel to Equator

Maps Parallel (latitude) lines parallel to Equator measures distance North/South

Maps Parallel (latitude) lines parallel to Equator measures distance North/South measured from 0 to 90o

Maps Parallel (latitude) lines parallel to Equator measures distance North/South measured from 0 to 90o measured as North/South latitude

Topographic Maps

Topographic Maps Show the relief of the land

Topographic Maps Show the relief of the land Relief (topography) shown with contour lines

Topographic Maps Show the relief of the land Relief (topography) shown with contour lines Contour lines – lines of equal elevation

Local Landforms Rivers, streams, drainage areas

Local Landforms Rivers, streams, drainage areas Mountains, hills, mounds

Local Landforms Rivers, streams, drainage areas Mountains, hills, mounds Valleys, depressions, quarries

Local Landforms Rivers, streams, drainage areas Mountains, hills, mounds Valleys, depressions, quarries Ponds, swamps

Local Landforms Rivers, streams, drainage areas Mountains, hills, mounds Valleys, depressions, quarries Ponds, swamps, wetlands Flood plains, steep slopes

Interpreting Topographic Maps Basic Rules: Contour lines ….. … never cross

Interpreting Topographic Maps Basic Rules: Contour lines ….. … never cross … close together = steep slope

Interpreting Topographic Maps Basic Rules: Contour lines ….. … never cross … close together = steep slope … far apart = gentle slope

Interpreting Topographic Maps Basic Rules: Contour lines ….. … never cross … close together = steep slope … far apart = gentle slope … form loops around hills / holes

Interpreting Topographic Maps Basic Rules: Contour lines ….. … never cross … close together = steep slope … far apart = gentle slope … form loops around hills / holes … form “V’s” in valleys and point upstream (or uphill)