Stream frequency and Drainage density are closely related to each other and designated if stream frequency increases, respectively drainage density also increases Table-2. Strahler 1964 classified elongation ratio. The slope map of Kanhar basin is shown in Fig. Morphometric Analysis of a Drainage Basin Using Geographical Information System: A Case study. In the pre- sent study, the hypsometric integral was estimates using elevation-relief ratio method, proposed by Pike and Wilson 1971. Length area Relation Lar The concept of length area relation discovered by Hack in 1957.
A pour point is a user-supplied point to the cells of highest flow accumulation Magesh et al. International Association of Scientific Hydrology — Bulletin, 13: 61-68 1968. Standards for grading texture of erosional topography. Form factor Horton 27 described form factor concept. Rf value of the Kanhar basin is 0. Study Area The Kadvi River basin extend between 16°48' 51.
Hence, it is noticed that there is a decrease in stream frequency as the stream order increases and vice versa. The drainage density in the area has been found to be low which indicates that the area possesses highly permeable soils and low relief. The moderately steep slope 22˚ - 31˚ class characterized by fast flow of water, presence of boulders in the channel, steep sided cliffs, and erosional features are prominent in the area. Hypsometric analysis can be used to understand and evaluate various forcing factors acting on basin topography. The number of streams N u in each order is presented in for each sub-basins.
Stream Order U Horton devised a quantitative method to analyzing drainage basins which have become a standard technique for presenting data on drainage basins. It seems that the massive and resistant rocks and high relief have produced very coarse to coarse drainage texture basin. Basin Perimeters P The perimeter of Kadvi river basin is estimated to be 107. The departure of the basin from a true circle can be calculated. The total number of streams counted in the Kadvi river basin are 1948. Therefore, morphometric analysis of the watershed is important in understanding the hydrology of the watershed for sustainable use of natural resource as well as effective management of water induced disasters in mountainous areas.
The sub-basins relief range from 3302 to 6187 m. Terrain pre-processing has been used in the processing and creating the watershed basin of the study area. Research also used Geospatial techniques for the landform analysis and various geographic changes. These irregularities are dependent on the geological and lithological progress of the drainage basin 32. Morphometric evaluation of the Gilgit river basin was carried out to study its drainage characteristics and overall water resource potential. The drainage density of the Kanhar basin is 1.
Herringbone, dendritic, rectangular drainage pattern and radial pattern is shown in this basin. Different sub-watershed of Kanhar River basin is shown in the Fig. Remote Sensing, 26 1 : 69-76 1998. During calculation it is identified that the number of streams gradually decreases as the stream order increases; the variation in stream order and size of tributary basins is largely depends on physiographical, geomorphological and geological condition of the region. The study focused mainly on the geometry, more emphasis being placed on the relationship between morphometric characteristics such as stream order N , stream length L , bifurcation ratio u u forming the linear properties and drainage density D , stream frequency F , texture ratio T , elongation ratio s R , circularity ratio R form factor ratio R comprising the area properties of the drainage basin were e c f computed, forming the basis of analysis of the drainage basin. Gilgit Basin and sub-basins B2, B3, B4 are less elongated, while sub-basins B1, B5 and B6 reflect elongated shape. Schumm had set the relation between basin area of the river and total stream length.
Am J Sci, 248: 655—668 1950. Fitness ratio Rf According to Melton 47, fitness ratio is illustrated as the ratio of main channel length to the length of the watershed perimeter. Form Factor Ff The form factor ratio is a dimensionless ratio of the basin area to the square of basin length. At-A-Station Hydraulic Geometry of Tarali River, Maharashtra: An Impact of Human Intervention on Channel. Drainage density is related to various features of landscape dissection such as valley density, channel head source area, relief, climate and vegetation Moglen et al. All these will influence the basin discharge rate, chances of flood occurrence, peak flow, infiltration rate and recharging of the Osun basin groundwater system among others.
Higher values of elongation ratio show high infiltration capacity and low runoff, whereas lower Re values which are characterized by high susceptibility to erosion and sediment load The database obtains through analysis of morphometric parameters would be suggested for its proper utilization in the integrated watershed programme aimed at development and management of water resources of the Kanhar River basin by the ministry of water resources, New Delhi India in future. The quantitative expression of drainage basin morphometry was first presented by Horton 1945 , pioneer of the field. In monsoon season, river gives huge water mass, where as in winter it converts in a small stream. The result of this process will create a watershed boundary polygon from the flow direction raster data. Balvinder Shukla, Amity University, Noida for constant encouragement. To evaluate the drainage basin morphometry, various parameters like stream number, stream order, stream length, stream length ratio, bifurcation ratio, basin length, basin area, relief ratio, elongation ratio, drainage density, stream frequency, form factor and circulatory ratio, etc.
Introduction Morphometric studies are first attempted by Horton, Strahler, Smith, Schumm, and Miller 1-5. Out of the seven sub-watersheds, two sub-watersheds viz. The drainage density values of the different watersheds exhibit high degree of positive correlation 0. The morphometric analysis is carried by the measurement of linear, aerial and relief aspects of basins. Relief ratio Schumm 32 has defined the relief ratio concept. South and southeast aspect covers 24.
The elements that alter the constant of maintenance other than permeability are rock type, relief, vegetation and duration of rainfall. Kadvi river is the main tributary of Warna river. The Gilgit river basin is situated in the Hindu Kush and Karakoram Mountains of Pakistan. Bifurcation ratio of Kadvi river varies from 2 to 4. The slope elements, in turn, are controlled by the climatomorphogenic processes in areas having rock of varying resistance Magesh et al. Kadvi river basin area covers 428. Higher ''Rbm'' of river basin means large variation in a number of stream orders because of more complex geological structure 33.