Geomorphic evolution of the Dongar River Basin, Son Valley, Central India

Figures & data

Figure 1. Satellite imaginary showing the Dongar River Basin, Son Valley, Central India.

Table 1. Formulae adopted for computation of different morphometric parameters and their calculated values for Dongar River Basin, Son Valley, Central India.

Parameters	References/values	Parameters	References/values
Stream length ratio (Rl)	Horton (1945)	Elongation ratio (Re)	Schumm (1956)
Rl = Lu/L(u –1)		Re = 1.128√A/Lb	0.86
5th/4th order length	–	Drainage density (Dd)	Horton (1932)
4th/3rd	1.5	Dd = ΣLt/A	1.21 km^−1
3rd/2nd	0.14	Stream frequency (Fs)	Horton (1932)
2nd/1st	0.84	Fs = ΣNt/A	1.02
Mean	0.83	Form factor (Rf)	Horton (1932)
Bifurcation ratio (Rb)	Schumm (1956)	Rf = A/Lb^2	0.46
Nu/N(u + 1)		Circulatory ratio (Rc)	Miller (1953)
1st/2nd order	1.58	Rc = 4πA/P^2	0.13
2nd/3rd order	4	Length of overland flow (Lg)	Horton (1945)
3rd/4th order	3	Lg = 1/2Dd	0.41
Mean	2.86	Ruggedness number (Rn)	Strahler (1958)
Relief ratio (Rh)	Schumm (1956)	Rn = R*Dd	0.35
Rh = R/Lb	0.03	Melton ruggedness ratio (MRn)	Melton (1965)
		MRn = H–h/√A	0.04

Note: Lu, length of the major stream; Nu, number of streams of any given order; A, area of the basin; Lb, maximum length of the basin; Lt, total length of the stream; Nt, total number of the stream; H, maximum elevation within the basin; h, minimum elevation within the basin.

Figure 2. (a) Aspect map, (b) Slope map, and (c) Relief map of the Dongar River Basin, Son Valley, Central India.

Figure 3. (a) Bivariate plots of “log Nu” vs. stream order (Horton’s first law). (b) “log Lu” vs. stream order (Horton’s second law).

Figure 4. Longitudinal profile of the Dongar River Basin, Son Valley, Central India.

Figure 5. Lineament trends (ENE–WSW) of the Dongar River Basin, Son Valley, Central India.

Horton, R. E. (1945). Erosional development of streams and their drainage basins: Hydrophysicalapproach to quantitative morphology. Geological Society of America Bulletin, 56, 275–370.

 Web of Science ®Google Scholar

Schumm, S. A. (1956). Evolution of drainage system and slopes in badlands at Perth Amboy, NEW Jessey. Geological Society of America Bulletin, 67, 597–646.

 Web of Science ®Google Scholar

Horton, R. E. (1932). Drainage basin characteristics. Transactions American Geophysical Union, 13, 350–361.

 Google Scholar

Miller, V. C. (1953). A quantitative geomorphic study of drainage basin characteristics in the Clinch mountain area, Virginia and Teimessee, Proi NR 389-402 (Technical Report 3). New York: Columbia University.

 Google Scholar

Strahler, A. N. (1958). Dimensional analysis applied to fluvially eroded landforms. Geological Society of America Bulletin, 69, 279–300.

 Web of Science ®Google Scholar

Melton, M. A. (1965). The geomorphic and paleoclimatic significance of alluvial deposits in southern Arizona. Journal of Geology, 73, 1–38.

 Google Scholar