scholarly journals Morphometric analysis and sub-watersheds prioritization of Nagmati River watershed, Kutch District, Gujarat using GIS based approach

2018 ◽  
Vol 39 (1) ◽  
pp. 131-139 ◽  
Author(s):  
Saif Said ◽  
Rabab Siddique ◽  
Mohammad Shakeel
Keyword(s):  
Morphometric Analysis ◽  
Water Conservation ◽  
Mature Stage ◽  
Drainage Pattern ◽  
Stream Network ◽  
Stream Length ◽  
River Watershed ◽  
Stage Of Development ◽  
Sensing Applications ◽  
Hypsometric Integral

AbstractMorphometric analysis of any watershed and its prioritization is one of the important aspects of planning for implementation of management programmes. Present study evaluates the quantitative morphometric characteristics of Nagmati River watershed in Kutch District of Gujarat by utilizing Cartosat-1 data (CartoDEM). In all 19 aerial and 6 linear morphometric parameters of the watershed have been evaluated. Drainage map of the study area reveals a dendritic drainage pattern with sixth order stream network comprising 492 numbers of streams and confining an area of 129.41 km2. Mean bifurcation ratio (Rb) and stream length ratio (RL) of the watershed evaluated are 3.44 and 0.54 respectively which corroborates the fact that drainage pattern is not influenced by the geological evolutions and disturbances in the recent past. The drainage density of 2.68 kmꞏkm−2 indicates impermeable subsoil material with sparse vegetation and moderate to low relief. Elongation ratio of 0.956 infers the basin to be closer to a circular shape. The geologic stage of development and erosion proneness of the watershed is quantified by hypsometric integral (HI) bearing value as 0.5, indicating the landscape to be uniform and in early mature stage. The study prioritizes eight sub-watersheds as high, medium and low for taking up soil and water conservation activities. Hence, remote sensing applications proved to be highly useful in extracting the precise data for the evaluation and analysis of watershed characteristics.

scholarly journals Geomorphic and tectonic implications of the endorheic to exorheic transition of the Ebro River system in northeast Iberia

2018 ◽  
Vol 91 (2) ◽  
pp. 472-492 ◽  
Author(s):  
Ángel Soria-Jáuregui ◽  
Francisco Jiménez-Cantizano ◽  
Loreto Antón
Keyword(s):  
Transient State ◽  
River System ◽  
Asymmetry Factor ◽  
Mature Stage ◽  
Stream Length ◽  
Ebro River ◽  
Iberian Range ◽  
Stage Of Development ◽  
Hypsometric Integral ◽  
Mountain Front

AbstractThe Ebro catchment includes a continental foreland basin that underwent an endorheic–exorheic transition. Morphometric studies, including hypsometric curves, hypsometric integrals, asymmetry factor, mountain front sinuosity, normalised stream-length gradient, and normalised concavity indices for the Ebro River and 32 of its tributaries, show the signals of transient response to this major drainage change. The Ebro River, its upper catchment tributaries, and the Pyrenean tributaries have concave-up longitudinal profiles, concave hypsometric curves, and low hypsometric integrals, parameters typical of deeply dissected basins. This suggests a mature stage of development, controlled by the shift of the base level to the Mediterranean Sea. Iberian Range tributaries display low concavity profiles with numerous knickpoints and high values of hypsometric integral, indicating a transient state as a response to tectonic uplift, ratified by the values of mountain front sinuosity surrounding the basin.

scholarly journals Morphometric analysis and prioritization of upper Benue River watershed, Northern Nigeria

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Caleb Akoji Odiji ◽  
Olaide Monsor Aderoju ◽  
Joseph Bisong Eta ◽  
Idris Shehu ◽  
Adama Mai-Bukar ◽  
...  
Keyword(s):  
Management Strategies ◽  
Decision Makers ◽  
Order System ◽  
Hydrological Process ◽  
Drainage Pattern ◽  
River Watershed ◽  
Digital Elevation ◽  
Hypsometric Integral ◽  
Cumulative Length ◽  
Elevation Model

AbstractThe upper Benue River watershed is undergoing remarkable modifications due to man-made and natural phenomena. Hence, an evaluation is required to understand the hydrological process of the watershed for planning and management strategies. This study aimed to assess the morphometric characteristics and prioritize the upper Benue River watershed. The boundary of the watershed and sub-watersheds, as well as stream networks, was extracted from the digital elevation model (DEM) coupled with hydrological and topographic maps. Twenty-eight morphometric parameters under three categories, i.e. linear, areal, and relief aspects were computed and mapped. Findings from the study revealed that the watershed is a seventh stream order system characterized by a dendritic drainage pattern. The result also showed that 4821 streams were extracted with a cumulative length of 30,232.84 km. The hypsometric integral of the watershed was estimated to be 0.22, indicating that it is in the old stage. In the prioritization of the watershed, the morphometric variables were utilized to calculate and classify the compound factor. The result showed that sub-watersheds 12, 16, 18, 24, 26, and 27 were ranked as very high priority for which conservation measures are required to mitigate the risk of flood and erosion. The outcome of this study can be used by decision-makers for sustainable watershed management and planning.

scholarly journals MORPHOMETRIC ANALYSIS OF WADI DARNAH WATERSHED NE LIBYA, USING GIS TECHNIQUES

2021 ◽  
pp. 31-49
Author(s):  
Nouria El Hadi. A. Aboshaala
Keyword(s):  
Morphometric Analysis ◽  
Structural Control ◽  
Geological Structure ◽  
High Rate ◽  
Elongation Ratio ◽  
Drainage Pattern ◽  
Infiltration Capacity ◽  
Stream Network ◽  
Gis Techniques ◽  
Drainage Patterns

Wadi Darnah is about 586 km2 and lies in the northern portion of the Al Jabil AL Akhdar. The Wadi drains into the Mediterranean Sea. The present study incorporates a morphometric analysis of Wadi Darnah by using remote sensing and GIS techniques. Digital Elevation Model (DEM) and topographic sheets were processed in ArcGIS software. The study revealed that the drainage patterns of stream network from the basin are mainly of dendritic type which indicates homogeneity in texture and lack of structural control. The bifurcation ratio value of 4.53 indicates that the area is not much influenced by the geological structure and undisturbed drainage pattern. The study area is of the low density group basins (2.09 km-1). The elongation ratio (0.36), circularity ratio (0.14) and form factor (0.10) show elongated basin with steep relief, moderate discharge, and a long main channel. The basin has a high relief up to 850 m, which leads to a high rate of runoff but the effect of this water flow is reduced by the high infiltration capacity due to the high rate of karstification and karst features in the basin area.

Catchment delineation and morphometric analysis using geographical information system

2015 ◽  
Vol 72 (7) ◽  
pp. 1168-1175 ◽  
Author(s):  
Manoj Kumar ◽  
Rohitashw Kumar ◽  
P. K. Singh ◽  
Manjeet Singh ◽  
K. K. Yadav ◽  
...  
Keyword(s):  
Information System ◽  
Geographical Information System ◽  
Morphometric Analysis ◽  
Water Conservation ◽  
Drainage Density ◽  
Morphometric Parameters ◽  
Geographical Information ◽  
Vegetative Cover ◽  
Elongation Ratio ◽  
Drainage Pattern

The geographical information system (GIS) has emerged as an efficient tool in delineation of drainage patterns of watershed planning and management. The morphometric parameters of basins can address linear, areal and relief aspects. The study deals with the integrated watershed management of Baliya micro-watersheds, located in the Udaipur district of Rajasthan, India. Morphometric analysis in hydrological investigation is an important aspect and it is inevitable in the development and management of drainage basins. The determination of linear, areal and relief parameters indicate fairly good significance. The low value of the bifurcation ratio of 4.19 revealed that the drainage pattern has not been distorted by structural disturbance. The high value of the elongation ratio (0.68) compared to the circulatory ratio (0.27) indicates an elongated shape of the watershed. The high value of drainage density (5.39 km/km2) and stream frequency (12.32) shows that the region has impermeable subsoil material under poor vegetative cover with a low relief factor. The morphometric parameters of relief ratio (0.041) and relative relief (0.99%) show that the watershed can be treated using GIS techniques to determine the morphometric presence of dendritic drainage pattern, with a view to selecting the soil and water conservation measures and water harvesting.

scholarly journals Morphometric Analysis and Prioritization of Sub-Watersheds in Watershed of Nashik, Maharashtra of Godavari River Basin using Remote Sensing and GIS as a Tool.

2020 ◽  
Vol 9 (4) ◽  
pp. 1553-1559
Keyword(s):  
River Basin ◽  
Morphometric Analysis ◽  
Drainage Density ◽  
Stream Order ◽  
Elongation Ratio ◽  
Remotely Sensed Data ◽  
Drainage Pattern ◽  
Stream Length ◽  
Order Stream ◽  
Godavari River

Hydrological analysis and for the integrated development of the watershed, it is essential to do geomorphometric analysis. A comprehensive study of drainage pattern, topography, and most essential erosion status can be analyzed through morphometric analysis. Prioritization of sub-watersheds according to the capacity of the water table of Nashik district watershed was evaluated by linear, aerial and relief aspects. The morphometric analysis has been used for the prioritization of seven sub-watersheds of the Godavari river basin in the Nashik district, Maharashtra. Using the Digital Elevation Model, the sub-watersheds were delineated in ArcMap 10.4 and also few extraction works were done in Erdas Imagine. Drains and their corresponding characteristics including stream length, stream order, stream frequency, circulatory ratio, texture ratio, compactness coefficient, elongation ratio, form factor, drainage density, bifurcation ratio is analyzed and their value has evaluated for each sub-watershed by using the Remotely Sensed-data and geospatial techniques. Finally based on morphometric behavior the priority has been given to each sub-watershed & rank has assigned to them, the most sensitive sub-watershed is identified. The reveled analysis says stream order ranges from 1 to 6. The overall stream segments of all order are 1,115 in the watershed. On the account of morphometric analysis prioritization of watershed is done. Resulting prioritization rank assigned to each watershed based upon the evaluated compound parameter given to them. Those Sub-watersheds having least compound parameter value has assigned the highest priority. Further, sub watersheds accordingly categorized into three type i.e. high (3.4-3.8), medium (4.0-4.2) and low (4.4) priority based on their maximum priority score (4.5) and minimum score (3.4).

scholarly journals Η επίδραση της γεωλογίας και της τεκτονικής στην εξέλιξη του υδρογραφικού δικτύου και της υδρολογικής λεκάνης του ποταμού Πάμισου της Θεσσαλίας.

2005 ◽  
Vol 38 ◽  
pp. 86
Author(s):  
Κ. ΒΟΥΒΑΛΙΔΗΣ ◽  
Α. ΣΦΕΙΚΟΣ ◽  
Θ. ΠΑΡΑΣΧΟΥ ◽  
Χ. ΚΕΧΑΓΙΑ ◽  
Δ. ΨΩΜΙΑΔΗΣ
Keyword(s):  
Drainage Basin ◽  
River System ◽  
Tectonic Activity ◽  
Mature Stage ◽  
Surface Erosion ◽  
Terrain Analysis ◽  
Entire Study ◽  
Fluvial Terraces ◽  
Stage Of Development ◽  
Hypsometric Integral

River Pamisos is a main tributary of Pinios River, draining the SW part of the Thessaly catchment area. The river's drainage basin comprises part of the plain as well as of the mountainous terrain that bounds the broader Thessaly Plain. In this paper we present the results of both qualitative and quantitative analyses of the drainage network and morphology through processing of digitized data with GIS software. Quantitative measurements allowed objectively to compare different landforms and to calculate less straightforward parameters (geomorphic indices) that may be useful for the identifying particular characteristics of the area, such as the level of tectonic activity and geologic conffiocm the analysis of the hydrographie network values for the D and F parameters were calculated. In addition, terrain analysis resulted in useful conclusions about morphologic indices, derivation of hypsographic curves and integrals for the entire study area. Similarly, the morphological study of fluvial terraces together with that of sub-basins resulted in determination of erosive activity of the river. Finally, the analysis of certain morphometric indices obtained from the hydrographie network and morphology subsequent analyses was used to define the influence of geologic formations and tectonics upon the evolution of the river system. One of the major results of this paper is that the shape of the hypsometric curve and the calculation of the hypsometric integral indicate a mature stage of development for the Pamissos River drainage basin. It is generally known that the landscape in recently developed - active orogens is shaped mainly by two factors, tectonic activity and surface erosion. If we accept that the denudation – erosion rates in Hellenic orogen are approximately the same, then the lack of landmass (indicated by hypsometric integral) should implicate a basin expansion due to tectonic control.

Structural Development and Geomorphic Relationship in Wadi Atyaruh, Al Jabal Al Akhdar, NE Libya

2021 ◽  
Vol 5 (1) ◽  
pp. 12-23
Author(s):  
Fawzi Moftah ◽  
MacTar Mohamed ◽  
Alzubair Abousaif
Keyword(s):  
Drainage Basin ◽  
Drainage System ◽  
Strike Slip ◽  
Geographical Information ◽  
Mature Stage ◽  
Groundwater Prospect ◽  
Structural Development ◽  
Drainage Pattern ◽  
Principal Stresses ◽  
Gis And Remote Sensing

The present study has been carried out to analyze the relationship between faulting and geomorphology of the Wadi Atyaruh to reveal the effect of structures on the morphology and distribution of the different karst features. Geographical Information System (GIS) and Remote Sensing (RS) techniques were applied to investigate morphological and topographic characteristics of Wadi Atyaruh, based on ASTER Global Digital Elevation Model (ASTER GDEM) Version 3 (V3) data. Dextral strike-slip fault is the main faulting type in the valley. Conjugate faults system has been found in the study area, which reveals the orientations of the principal stresses. Wadi Atyaruh consists mainly of Dernah formations (Eocene) and Quaternary deposits. Two types of Karren have been recognized, they are Rillen karren and solution basis which are well distributed in Darnah formation. Caves are found in the Darnah formation, the passages and chambers of these caves show a phreatic bedding plane, elliptical shape, laminar profiles, and rectangular and rounded top vadose profiles. The drainage system of this valley is sub-parallel drainage pattern to dendritic drainage pattern, indicating that the area has affected by strike-slip movement (Dextral), joints and it has steep slopes. interpretation of DEM of study area indicate moderate and high relief, low run off and high infiltrations due to the nature of the fracture carbonate rock, the basin have early mature stage of erosion development. Geomorphic parameters such as hill shade, slop, aspect, area shaded and elevation maps, was produced to describe geomorphic forms and processes of the Wadi Atyaruh. The complete morphometric analysis of drainage basin indicates that the given area is having good groundwater prospect.

scholarly journals Changes in streamflow regimes and their response to different soil and water conservation measures in Loess Plateau watersheds

2021 ◽  
Author(s):  
Shuyu Zhang ◽  
Guangju Zhao ◽  
Xingmin Mu ◽  
Peng Tian
Keyword(s):  
Loess Plateau ◽  
Water Conservation ◽  
Human Activities ◽  
Soil And Water Conservation ◽  
Low Flow ◽  
Hydrological Change ◽  
River Watershed ◽  
Daily Streamflow ◽  
Conservation Measures ◽  
Soil And Water

Investigating the changes in streamflow regimes is useful for understanding the mechanisms associated with hydrological processes in different watersheds and for providing information to facilitate water resources management. In this study, we selected three watersheds, i.e., Sandu River, Hulu River, and Dali River on the Loess Plateau, to examine the changes in the streamflow regimes and to determine their responses to different soil and water conservation measures (terracing, afforestation, and damming). The daily runoff was collected continuously by three hydrological gauges close to the outlets of the three watersheds from 1965 to 2016. The eco-surplus, eco-deficit, and degree of hydrological change were assessed to detect hydrological alterations. The Budyko water balance equation was applied to estimate the potential impacts of climate change and human activities on the hydrological regime changes. Significant decreasing trends (P < 0.05) were detected in the annual streamflow in the Sandu and Dali River watersheds, but not in the Hulu River watershed where afforestation dominated. The annual eco-surplus levels were low and they decreased slightly at three stations, whereas the eco-deficit exhibited dramatic increasing trends in the Sandu and Dali River watersheds. In the Sandu River watershed (dominated by terraces), the runoff exhibited the most significant reduction and the eco-deficit was the highest among the three watersheds. The integral degrees of hydrological change were higher in the Sandu River watershed than the other two watersheds, thereby suggesting substantial variations in the magnitude, duration, frequency, timing, and rate of change in the daily streamflow. In the Dali River watershed (dominated by damming), the changes in the extreme flow were characterized by a decreasing number appearing in high flow. In these watersheds, human activities accounted for 74.1% and 91.78% of the runoff reductions, respectively. In the Hulu River watershed (dominated by afforestation), the annual runoff exhibited an insignificant decreasing trend but with a significant increase in the low flow duration. Rainfall changes accounted for 64.30% of the runoff reduction.

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