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Drainage Basin Delineation and Quantitative Analysis of Panamaram Watershed of Kabani River Basin, Kerala Using Remote Sensing and GIS
The morphometric analysis was carried out to determine the drainage characteristics of Panamaram watershed (PW) of Kabani river basin, Kerala, India with emphasis on fourth order sub-basins (FOSBs) using Geocoded imageries of IRS-IC LISS III FCCs (1997) of 1:50,000 scale, aerial photographs (1990) o...
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| Format: | Printed Book |
| Publicat: |
Journal of Geographical Society of India
2013
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| Matèries: | |
| Accés en línia: | http://10.26.1.76/ks/004725.pdf |
| Sumari: | The morphometric analysis was carried out to determine the drainage characteristics of Panamaram watershed
(PW) of Kabani river basin, Kerala, India with emphasis on fourth order sub-basins (FOSBs) using Geocoded imageries
of IRS-IC LISS III FCCs (1997) of 1:50,000 scale, aerial photographs (1990) of 1:15,000 scale and Survey of India
toposheets (1968) on 1: 50,000 scale. The main idea was to examine the stream properties based on the measurement of
various stream attributes. The different drainage parameters studied and the measurements related to perimeter, area of
sub-basins, basin length and number of rivers were determined by using Map Info 6.5 techniques. The drainage pattern
of the PW is dendritic, a sixth order stream. There are 587, 135, 36 and 12 first, second, third and fourth order Hortonian
streams, respectively in PW. The mean bifurcation ratio indicates that the drainage pattern is not much influenced by
geological structures. The shape parameters reveal the elongation of the basin and sub-basins. The applicability of
Horton’s Laws on Stream numbers, Stream lengths and Stream areas is tested by using the theory of regression by
estimating theoretically bifurcation ratio, length ratio and area ratio. For the fourth order sub-basins of 1, 2, 4, 5 and 8 of
PW, a second degree polynomial equation seems to be a better model than the Hortonian model. |
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| Descripció física: | pp.368-378 Vol.82, October 2013 |