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Geomorphological Field Manual by Dackombe R.;Gardiner V.;

Author:Dackombe, R.;Gardiner, V.; [Gardiner, R. Dackombe and V.] , Date: February 4, 2023 ,Views: 53

Geomorphological Field Manual by Dackombe R.;Gardiner V.;

Author:Dackombe, R.;Gardiner, V.; [Gardiner, R. Dackombe and V.]
Language: eng
Format: epub
Publisher: Taylor & Francis Group
Published: 2020-03-21T00:00:00+00:00


n = (n0 + n1 + n2 + n3 + n4)m5 .

n0 is a basic value for a straight uniform channel in the appropriate material. n1 incorporates the effects of surface irregularities. n2 incorporates the effects of variations in shape and size of the channel cross section. n3 incorporates the effects of obstructions. n4 incorporates the effects of vegetation. m5 incorporates the effects of channel meandering (note that this is a multiplier).

Values of these components are as follows:

Material, n0 Degree of surface irregularity, n1

earth

0.020

smooth

0.000



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