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Geometric Properties of Landscapes
H.D. Tjia,
Data & Software Engineering Research Group STEI-ITB, Jl. Ganeca No.10, Bandung 40132, Indonesia
Abstract. Quantification of landforms has been executed for most watershed elements and adjacent slopes and some concerning mountains and distribution pattern of land and water. Almost all watershed characteristic are based on the system of stream ordering.
Empirically certain statistical relations of landscape elements have been proven to exist beyond doubt like the laws of stream numbers, stream lengths, stream slopes, drainage basin areas, contributing areas; also: constant of channel maintenance; drainage density and texture ratio; relief ratio; hypsometric integrals for drainage basins and mountains; frequency distribution of stream lengths; maximum valley side slopes. Furthermore, interesting results may be expected from the concepts of geometrical similarity of drainage basins and the distribution pattern of land and water.
The good to excellent quality of Indonesian topographic maps invite an immediate investigation of drainage density and texture ratio; hypsometric integral, maximum valley side slopes, and relief ratio in order to obtain quantitative proofs in distinguishing landforms as products of humid tropics from those of the temperate humid/dry climates
Keywords: geology
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