understanding of morphometric features for adequate water resource management in arid environments
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2017
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Abstract
Hydrological characteristics such as topographic parameters, drainage
attributes, and land use/land cover patterns are essential to evaluate
the water resource management of a watershed area. In the current study,
delineation of a watershed and calculation of morphometric
characteristics were undertaken using the ASTER global digital elevation model (GDEM). The drainage density of
the basin was estimated to be very high, which indicates that the
watershed possesses highly permeable soils and low to medium relief. The
stream order of the area ranges from first to sixth order, showing a semi-dendritic and radial drainage pattern that indicates heterogeneity in
textural characteristics, and it is influenced by structural characteristics in
the study area. The bifurcation ratio (Rb) of the basin ranges from 2.0 to
4.42, and the mean bifurcation ratio is 3.84 in the entire study area, which
signifies that the drainage pattern of the entire basin is
controlled much more by the lithological and geological structure. The elongation
ratio is 0.14, which indicates that the shape of the basin has a
narrow and elongated shape. A land use/land cover map was generated by using
a Landsat-8 image acquired on 10 August 2015 and classified to
distinguish mainly the alluvial deposit from the mountainous rock.
| Reference Key |
elhag2017geoscientificunderstanding
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|---|---|
| Authors | ;M. Elhag;H. K. Galal;H. K. Galal;H. Alsubaie |
| Journal | radiologic technology |
| Year | 2017 |
| DOI |
10.5194/gi-6-293-2017
|
| URL | |
| Keywords |
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