Geometry

The Geomorphometrie deals with the quantitative description and analysis of the earth's surface and is a branch of geomorphology . The inclination, exposure and curvature (curvature) of the terrain are among the information that is most frequently extracted from terrain models and used in a wide variety of applications, e.g. B. for mapping of soils, land use, etc., can be used.

"The solid earth crust shows a great wealth of different surface forms, which show an overwhelming diversity of individual types between the suddenly towering mountain pinnacle and the twisting valley, [and] through their socialization determine the landscape character of extensive areas [...]"

- Albrecht Penck : 1894

history

Geomorphometry as we know it today began to develop with the discoveries of Barnabé Brisson (1777–1828), Carl Gauß (1777–1855) and Alexander von Humboldt (1769–1859). After the development of the digital computer (mid-end of the 20th century), it was increasingly possible to practice geometry. It developed from a mixture of mathematics and computer science .

method

The basic method of geometry is usually divided into five stages:

1. Scanning the land surface ( altitude measurement )
2. Create a surface model from the scanned heights
3. Correcting errors in the surface model
4. Derivation of land surface parameters and objects
5. Applications of the resulting parameters and objects

See also

• geomorphology
• Morphometry

Individual evidence

1. ↑ 7.1.1 Geomorphometry or how information is created from derivations. (No longer available online.) In: From spatial analysis methods to decision making. Archived from the original on March 4, 2016 ; Retrieved November 25, 2014 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
2. ↑ Stefan Rasemann: Geomorphometric structure of a mesoscale alpine geosystem . Dissertation, Rheinischen Friedrich-Wilhelms-Universität Bonn. Bonn 2003 ( ulb.uni-bonn.de [PDF; 19.8 MB ; accessed on February 10, 2017]).
3. ↑ geomorphometry.org (PDF)