| dc.description.abstract |
Water is an important resource of the earth’s surface and it is integral for all on
this planet. The availability or the scarcity of water depends on the watershed
characterizes that consider the basic, linear, and shape parameters of any
waterbody. The objective of the study was to delineate 14 morphometric
parameters in the Barind region (Dinajpur district, Bangladesh) for sustainable
hydrological modeling. An ASTER-DEM of 30-meter resolution data,
geographical information system (GIS), and Remote sensing technique were
used for extracting drainage components of interest region. The whole study
region was covered by the flow of the Purnovoba river, Jamuna river, Atrai river
(part-1 and part-2). Research results found that the Purnovoba river had a high
bifurcation ratio (0.9982) that defined hydrologically more disturbed than the
other three watershed areas and it had a high stream frequency (0.8332) that
denoted rocky having low infiltration capacity. Jamuna river had a low drainage
density (0.7322) that defined more vegetation having higher permeability.
Besides, the Jamuna river had the lowest no. of stream order that was
insignificant in the steady runoff process and less prone to cause a flash flood.
The research predicted that the availability of groundwater might decrease to
Jamuna river in the future as it had the lowest basin area (217.42 sqr. km ) and
perimeter (114.90 km) and the basin surface slope would become gentle to
Atrai river part-1 for the lowest length of overland flow (0.6072). Purnovoba
river experienced the lowest form factor (0.2351) which indicated the most
possibility for erosion. The elongated ratio of all basins was greater than 0.5
which considered all the shapes were more elongated. These findings will help
for further modeling of an integrated watershed for sustainable hydrological
models in the Barind region. |
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