IAS (Admin.) Mains Geography Geomorphology-Channel Morphology Study Material (Page 1 of 3)

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Morphometric Analysis: Morphometry, Bifurcation Ratio, Drainage Density, Stream Frequency

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Morphometry

It is the measurement and mathematical analysis of configuration of the Earth՚s surface and the shape dimensions of its landforms. The various morphometric parameters include area, perimeter, form factor, circularity ratio, bifurcation ratio, drainage frequency, drainage texture, compactness coefficient, and mean stream length.

Bifurcation Ratio

It is a dimensionless number denoting the ratio between the number of streams of one order and those of the next-higher order in a drainage network.

For example, if a drainage ba…

… (169 more equations) …

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Morphometric Analysis of River Basins: Areal Aspects

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Areal Aspects

Basin Shape

The shape of the basins varies from place to place depending upon relief, rock type, slope, geological structure etc. The ideal shape of a drainage basin resembles a pear. Assessment of a basin՚s shape can be used to explain certain hydrological processes. There are various methods to assess the sha…

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