Vorlesung 11; terrain

natural land surface with its heights, depths and its typical landforms -> Bodenoberfläche ohne Bäume, Häuser etc.

physical configuration and features of land, terrain and associated features -> mit Bäumen, Häusern etc.

height/depth of terrain element with respect to vertical datum plane such as sea level

differenc between maximum and minimum elevations within a given area

- levelling

- GPS (Global Positioning System)

- Radar

- Lidar

Digital Elevation Model / Digitales Terrainmodell

digital representation of continuous terrain, used to represent bare-earth terrain without vegetation and manmade features

Landoberfläche mit Relief und der Konfiguration von natürlichen Phänomenen und anthropogenen Artefakten

- contour lines = isohypses: imaginary lines connecting points of equal elevation, show geomorphological forms

- isobath = depth contours: show seafloor relief/ terrain as contour lines

- hachure: short lines of varying width drawn in direction of steepest gradient, steepness through darkness usually combined with lighting effect

- psysiographic: sketching landforms, plan/oblique view often combined with relief shading

- shaded relief: casting light across terrain produces lighted and shadowed parts, produces a plastic 3D effect, terrain better perceived