Współczynnik rozwinięcia powierzchni jako wskaźnik syntetycznego przedstawienia rzeźby
Oglądaj/Otwórz
Autor:
Lach, Jan
Tabor, Józef
Żychowski, Józef
Źródło: Rocznik Naukowo-Dydaktyczny. 1980, Z. 71, Prace Geograficzne 8, s. 159-[166]
Język: pl
Data: 1980
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An attempt is made to present a synthetic factor for the area relief evaluation which would involve the relative
altitude, inclination, erosional dessection level and slope cutting depth.
One of the most natural factors is surface extension coefficient (r), i.e. the actual surface area (s) to
topographic surface area (t) ratio.
Taking into account the extension coefficient (r) definition and the well-known relationship cos = t/s, we obtain
cos =l/r.
The paper was intended to give a simple and fairly exact method for the actual surface area calculation in order to
obtain the surface extension coefficient. The procedure was based on a 1:25000 topographic map. For the computation
purpose, a square graticule (the surface areas being 0,25 km^2) based on the topographical map frames was drawn.
The coefficient values may be shown using a cartograph or isorithms.