scholarly journals Evaluation of River Network Generalization Methods for Preserving the Drainage Pattern

2016 ◽  
Vol 5 (12) ◽  
pp. 230 ◽  
Author(s):  
Ling Zhang ◽  
Eric Guilbert
Keyword(s):  
River Network ◽  
Drainage Pattern

scholarly journals Estimation of Morphometric Parameters of Karatoya sub-River Basin in Bangladesh using GIS and Remote Sensing Techniques

2020 ◽  
Vol 3 (3) ◽  
pp. 73-89
Author(s):  
Muhammad Jasim Uddin ◽  
Md. Abu Hamjalal Babu ◽  
Md. Risadul Islam ◽  
Fahim Farzana ◽  
Most. Lata Khatun ◽  
...  
Keyword(s):  
Remote Sensing ◽  
River Basin ◽  
Morphometric Analysis ◽  
Secondary Data ◽  
River Network ◽  
Morphometric Parameters ◽  
Drainage Pattern ◽  
Gis And Remote Sensing ◽  
Fine Grain ◽  
Drainage Texture

Morphometric analysis identifies the relationship of various aspects in the basin area, and plays an important role for understanding the geo-hydrological characteristics of a basin. The Karatoya River is ecologically and economically significant for Dinajpur region of Bangladesh. In this study, the morphometry of a sub-portion of Karatoya River in Birganj upazila was assessed by using GIS and remote sensing. The secondary data from ASTER DEM data and DEM data of Bangladesh were used to represent the morphologic and geo-hydrologic nature of the basin. The study computed and assessed more than 31 morphometric parameters in all aspects of the river basin. Morphometric analysis of the river network and the basin revealed that the Karatoya sub-basin was in the 6th order river network (as Strahler’s classification) with a dendritic and parallel drainage pattern and fine grain in drainage texture. This type of analysis will lead to develop the sustainable framework for agricultural and watershed management to be used by the local administration.

AN EXPERIMENTAL STUDY OF RIVER NETWORK DEVELOPMENT BY OVERLAND AND SUBSURFACE FLOW IN LOW-GRADIENT LANDSCAPES

2019 ◽  
Author(s):  
Brian Sockness ◽  
◽  
Karen B. Gran ◽  
Cecilia Cullen ◽  
Alison Anders ◽  
...  
Keyword(s):  
Experimental Study ◽  
Subsurface Flow ◽  
River Network ◽  
Network Development

scholarly journals Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network

2021 ◽  
Vol 121 ◽  
pp. 107188
Author(s):  
Zhengfei Li ◽  
Jani Heino ◽  
Xiao Chen ◽  
Zhenyuan Liu ◽  
Xingliang Meng ◽  
...  
Keyword(s):  
Study Design ◽  
River Network ◽  
Mountainous River

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.

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