Orographic dominance
The orographic dominance is a measure of how free-standing a peak , mountain or other geomorphological landform appears in the terrain . Besides the notch height and the dominance [i. w. S.] , a scaled indicator to qualify a mountain as an "independent" mountain.
definition
A simple formula for calculating orographic dominance is:
- with S as notch height and H as sea level of the mountain.
In contrast to the notch height S and dominance [i. w. S.] , which are given as lengths , the definition of orographic dominance is dimensionless .
According to Jurgalski , the value is multiplied by 100. This means that every peak, regardless of its absolute height, is assigned a percentage between 0 and 100 as a measure of its independence. The highest mountains on an island or continental land mass are thus assigned an orographic dominance of 100 by definition. On the basis of this key figure, Jurgalski has developed a systematic method for classifying mountains, mountains and peaks and put it up for discussion.
literature
- Eberhard Jurgalski : Topographical Prominence. In: Peter Grimm, Claus Roderich Mattmüller (Hrsg.): The mountain groups of the Alps. Views, systematics and methods for the division of the Alps (= Scientific Alpine Club Sheets. 39). German Alpine Club - DAV-Shop, Munich 2004, ISBN 3-937530-06-1 , pp. 129-139.
- Claus Roderich Mattmüller: On the orographic structure of mountains. In: Journal of Geomorphology. NF Vol. 55, No. 1, 2011, ISSN 0372-8854 , pp. 109-140, doi : 10.1127 / 0372-8854 / 2011 / 0055-0038 .
Individual evidence
- ↑ See weblink Gipfelverzeichnis.ch
- ↑ Eberhard Jurgalski : Alpine dominances. In: extreme-collect.de. Retrieved October 16, 2011 .
- ↑ Jurgalski: Explanation of the dominance system. In: extreme-collect.de. Retrieved October 16, 2011 .