Prioritization of Sub-Watersheds based on Morphometric parameters in Pare watershed, Arunachal Pradesh, India

2021 ◽  
pp. 53-64
Author(s):  
Waikhom Rahul Singh ◽  
Swapnali Barman ◽  
Nitesh Patidar
Keyword(s):  
Morphometric Parameters ◽  
Development Programs ◽  
Arunachal Pradesh ◽  
Watershed Development ◽  
Prioritization Process ◽  
Morphological Aspects ◽  
Management Measures ◽  
Digital Elevation ◽  
Mountainous Watersheds ◽  
Elevation Model

Mountainous watersheds are constantly under pressure of huge amount of soil loss due to soil erosion. Pare watershed is situated in the eastern Himalayan ranges of Arunachal Pradesh, India, which is subjected to such soil losses and its sub-watersheds are being degraded in many places. Watershed management programs are required in the area in which prioritization of sub-watersheds is one of the first steps. A study has been carried out to address this issue in the area to prioritize 26 sub-watersheds of Pare through morphometric analysis. The study used digital elevation model (DEM) to determine several morphometric parameters of the watershed. The analysis revealed that Pare river is of the 7th order comprising of 6127 stream segments running over the watersheds for about 2448 km. Based on the results obtained, the study area is an elongated well dissected watersheds with high relief and great presence of streams all over the watershed indicating faster runoff peak attainment which is synonymous to rapid transportation of sediment load. The analysis also revealed that SW25 required the top priority in dealing with soil, land and water management measures while least priority could be given to SW7 among all the sub-watersheds in the Pare basin. We suggest various stakeholders who are involved in watershed development programs in the region to take cues from the results obtained in this paper. The results of this study are quite satisfactory in understanding the various morphological aspects of the watershed. Nonetheless, efforts to improve the results can always be made through incorporation of land-use and soil information to enhance the prioritization process so that purpose utilization of the watershed may be reflected in the results.

scholarly journals Evaluation of Reliable Digital Elevation Model Resolution for TOPMODEL in Two Mountainous Watersheds, South Korea

2019 ◽  
Vol 9 (18) ◽  
pp. 3690 ◽  
Author(s):  
Daeryong Park ◽  
Huan-Jung Fan ◽  
Jun-Jie Zhu ◽  
Sang-Eun Oh ◽  
Myoung-Jin Um ◽  
...  
Keyword(s):  
South Korea ◽  
Cell Size ◽  
Digital Elevation Model ◽  
River Basin ◽  
Grid Cell ◽  
Dem Resolution ◽  
Digital Elevation ◽  
Mountainous Watersheds ◽  
Elevation Model ◽  
Digital Elevation Model Resolution

This study analyzed the result of parameter optimization using the digital elevation model (DEM) resolution in the TOPography-based hydrological MODEL (TOPMODEL). Also, this study investigated the sensitivity of the TOPMODEL efficiency by applying the varying resolution of the DEM grid cell size. This work applied TOPMODEL to two mountainous watersheds in South Korea: the Dongkok watershed in the Wicheon river basin and the Ieemokjung watershed in the Pyeongchang river basin. The DEM grid cell sizes were 5, 10, 20, 40, 80, 160, and 300 m. The effect of DEM grid cell size on the runoff was investigated by using the DEM grid cell size resolution to optimize the parameter sets. As the DEM grid cell size increased, the estimated peak discharge was found to increase based on different parameter sets. In addition, this study investigated the DEM grid cell size that was most reliable for use in runoff simulations with various parameter sets in the experimental watersheds. The results demonstrated that the TOPMODEL efficiencies in both the Dongkok and Ieemokjung watersheds rarely changed up to a DEM grid-size resolution of about 40 m, but the TOPMODEL efficiencies changed with the coarse resolution as the parameter sets were changed. This study is important for understanding and quantifying the modeling behaviors of TOPMODEL under the influence of DEM resolution based on different parameter sets.

scholarly journals Drainage basin morphometry: a global snapshot from the shuttle radar topography mission

2011 ◽  
Vol 15 (7) ◽  
pp. 2091-2099 ◽  
Author(s):  
P. L. Guth
Keyword(s):  
Digital Elevation Model ◽  
Drainage Basin ◽  
Shuttle Radar Topography Mission ◽  
Morphometric Parameters ◽  
Global Distribution ◽  
Drainage Basins ◽  
Basin Morphometry ◽  
Digital Elevation ◽  
Elevation Model

Abstract. A suite of 42 morphometric parameters for each of 26 272 drainage basins larger than 100 km2 from the Hydrosheds Shuttle Radar Topography digital elevation model shows the global distribution of Strahler order for streams and drainage basins. At the scale of 15 arc s spacing (232 to 464 m) the largest basins are order 9. Many common parameters depend both on the size of the basin, and the scale of the digital elevation model used for the computations. These drainage basins display the typical longitudinal stream profiles, but the major basins tend to be generally more concave than the smaller basins.

scholarly journals Using the geodetic and hydroacoustic measurements to investigate the bathymetric and morphometric parameters of Lake Hancza (Poland)

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Dariusz Popielarczyk ◽  
Tomasz Templin ◽  
Michał Łopata
Keyword(s):  
Digital Elevation Model ◽  
Measurement Techniques ◽  
Morphometric Parameters ◽  
Great Opportunity ◽  
Single Beam ◽  
Bathymetric Data ◽  
Digital Elevation ◽  
Hydroacoustic Measurements ◽  
Elevation Model ◽  
Bathymetric Map

Abstract Most of the inland lakes do not have up-to-date bathymetry. However, a significant progress in surveying technologies creates a possibility to quickly and accurately describe the underwater environment. Modern geodetic and global positioning techniques integrated with hydroacoustic systems provide a great opportunity to study the bottom shape with high resolution. Our study presents a reliable methodology for investigation of bathymetry and morphometric parameters with the use of GNSS positioning techniques and single beam echosounder. The research was implemented on the deepest, glacial reservoir in the central part of European Depression - Lake Hancza. Direct hydroacoustic and geodetic measurements completed by sediment study were conducted by the authors in 2010-2013. After performing a field survey the Digital Elevation Model was constructed and the new bathymetric map and morphometric card were elaborated. The maximum depth was confirmed to be 105.55 m. The final conclusions show that the available bathymetric data and morphometric parameters of lakes are highly dependent on the research methodology used, the precision and accuracy of measurement techniques, proper water level determination, digital elevation model and bathymetric map elaboration processes.

scholarly journals Dimensionless Geomorphometry and Discharge in the Ikpa River Basin, Nigeria

2018 ◽  
pp. 1-13
Author(s):  
Ikpong Sunday Umo ◽  
M. C. Ike ◽  
Ifeanyi G. Ukwe
Keyword(s):  
River Basin ◽  
Graphical Analysis ◽  
Elongation Ratio ◽  
Watershed Development ◽  
Digital Elevation ◽  
Geospatial Tools ◽  
The Government ◽  
Elevation Model ◽  
Basin Area ◽  
Geomorphometric Parameters

This study evaluates the relationships between dimensionless basin geomorphometry and discharge in the Ikpa River. The basin was stratified into seven sub-units using [1] scheme. Geospatial tools were used in generating data for the digital elevation model, while dimensionless geomorphometric parameters were generated from topographic maps (sheet 322 NE; sheet 322 SE; sheet 323 SW; and sheet 331 NW) of the basin area drawn on a scale of 1.50,000. The sampled sub-basins were gauged and discharge measured by a surface float. Graphical analysis of discharge revealed wide variations between months and in seasons across sub-basins with the rainy season attracting highest volume of discharge and the corresponding fluvial processes. The regression analysis yields a coefficient of multiple determination (R) of 0.937, signifying a very high effect expressed by 87.8 of the proportion of variance in dimensionless geomorphometric parameters on discharge in Ikpa River Basin. Also, the computed F value yields 1.439, while the Table value tested at (0.05)5/2 confident level offers 19.30. The result led to the conclusion that variations in relief ratio, average bifurcation ratio, circularity ratio, elongation ratio and form factor have a significant effect on discharge in Ikpa River Basin. This paper recommends for prompt installations of state of the art river gauging and monitoring facilities to provide the needed information to the government, researchers, and individuals for the sustainable land and watershed development options (dam and irrigation) in the coastal plain of Ikpa River basin.  

scholarly journals Digitalna analiza padina otoka Raba

Geoadria ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. 3
Author(s):  
Mladen Pahernik
Keyword(s):  
Spatial Distribution ◽  
Comparative Analysis ◽  
Network Analysis ◽  
Slope Angle ◽  
Morphometric Parameters ◽  
Digital Elevation ◽  
Morphometric Features ◽  
Gis Environment ◽  
Valley Network ◽  
Elevation Model

The paper analyzes morphometric features of the slopes of Rab Island. Based on the digital elevation model, raster layers were calculated for the values of slope angle, aspect and curvature, as well as valley network, which was grouped using the Strahler method. A comparative analysis of the calculated values of morphometric parameters was conducted in the GIS environment. Spatial distribution of the values of each of the morphometric parameters was correlated to the structural and morphogenetic features of Rab Island. Differences between the slopes features within each of the morphogenetic types of the terrain were ascertained by comparing their morphometric features, and by using the valley network analysis. 

scholarly journals Extração Automática de Drenagem: uma Análise Comparativa a Partir de Diferentes Ferramentas e Bases de Dados (Draining automatic extraction: a comparative analysis of different from the tools and databases )

2016 ◽  
Vol 9 (6) ◽  
pp. 1849
Author(s):  
Reurysson Chagas de Sousa Morais ◽  
Marta Celina Linhares Sales
Keyword(s):  
Large Scale ◽  
River Basins ◽  
Morphometric Parameters ◽  
Topographic Mapping ◽  
Automatic Extraction ◽  
Drainage Network ◽  
Computational Tools ◽  
Digital Elevation ◽  
Elevation Model ◽  
Manual Correction

A necessidade de planejamento e gerenciamento de bacias hidrográficas tem incitado pesquisa que buscam compreender sua dinâmica hidrológica. Em regiões que apresentam carência de mapeamento topográfico em grande escala, é comum o uso de modelos digitais de elevação (MDE) para extração automática da rede de drenagem, delimitação de bacias hidrográficas e obtenção de parâmetros hidrográficos e morfométricos. Diante deste cenário o presente trabalho teve como objetivo avaliar a eficiência de duas ferramentas computacionais (Hydrology e TauDEM) e três bases de dados (SRTM, AGEDM e AW3D) para a extração de rede de drenagem e cálculo de parâmetros hidrográficos. Concluiu-se que o software TauDEM representa a melhor solução da extração de drenagem, pois minimiza a geração de drenagem retilínea e paralela em áreas de relevo plano. Dentre as bases de dados, a drenagem extraída dos dados AW3D apresentaram maior correspondência com drenagem de referência do IBGE. De modo geral, os parâmetros morfométricos calculados para a Bacia Hidrográfica do Alto Gurguéia (BHAG), a partir das três bases de dados selecionadas, não apresentaram diferenças significativas, indicando o potencial das ferramentas e bases de dados para análises hidrográficas de médias e grandes bacias. Em todo caso, recomenda-se a inspeção e correção manual da rede de drenagem ao aplicar qualquer método de extração automática, com o intuito de reduzir os erros decorrentes das limitações dos softwares.   A B S T R A C T The need for planning and management of river basins has prompted research that seek to understand their hydrological dynamics. In regions with lack of topographic mapping on a large scale, it is common to use digital elevation models (DEM) for automatic drainage network extraction, delineation of watersheds and obtain hydrographic and morphometric parameters. Against this background the present study aimed to evaluate the efficiency of two computational tools (Hydrology and TauDEM) and three databases (SRTM, AGEDM and AW3D) for drainage network extraction and calculation of hydrographic parameters. It was concluded that the TauDEM software is the best solution drain extraction, because it minimizes the generation of rectilinear and parallel drainage in flat terrain areas. Among those databases, the drainage extracted of the AW3D data had higher correlation with the IBGE reference drainage. Overall, the morphometric parameters calculated for the basin of the Upper Gurguéia (BHAG), from the three selected databases, no show significant differences, indicating the potential of tools and databases for hydrographic analysis of averages and large basins. In any case, it is recommended to inspection and manual correction of the drainage network when applying any automatic extracting method, in order to reduce errors due to limitations of the software. Keywords: Drainage Neytwork. Digital Elevation Model. Geoprocessing.  

scholarly journals Morphometric analysis and watershed prioritization in relation to soil erosion in Dudhnai Watershed

2021 ◽  
Vol 11 (9) ◽  
Author(s):  
W. R. Singh ◽  
S. Barman ◽  
G. Tirkey
Keyword(s):  
Soil Erosion ◽  
Water Conservation ◽  
High Surface ◽  
Drainage Density ◽  
Morphometric Parameters ◽  
Geographical Information ◽  
Gis And Remote Sensing ◽  
Digital Elevation ◽  
Elevation Model

AbstractMorphologic parameters of a watershed could help in segregating critical sub-watersheds for taking up conservation practices and mitigation interventions. Determination of critical watersheds or prioritization of sub-watersheds is inevitable for efficient and sustainable watershed management programs and allocation of its natural resources. The traditional methods of determination of morphologic parameters are time consuming, expensive and requires huge labor. However, the process becomes easier, cheaper and faster with the advent of Geographical Information System (GIS) and remote sensing technologies. In the present study, a combined approach of using toposheet, remotely sensed digital elevation model and morphometric ArcGIS toolbox has been adopted to determine morphometric parameters in Dudhnai river basin, a sub-basin of river Brahmaputra which is prone to both erosion and sedimentation. Seven sub-watersheds of Dudhnai have been prioritized by using the morphometric parameters and ranked them according to its vulnerability to soil erosion. The results of bifurcation ratio, drainage density, drainage intensity and constant of channel maintenance showed that Dudhnai watershed is a well-dissected watershed with less risk to flooding and soil erosion. However, significantly high values of infiltration number and ruggedness number obtained are indicative of very low infiltration which may result in high surface runoff and soil erosion. The study also revealed that channel erosion is stronger than sheet erosion in the basin. The prioritization of the sub-watersheds implied that Chil sub-watershed is the most susceptible sub-watershed that needs greater attention for soil and water conservation measures. The results of the present study could aid various stakeholders who are involved in the watershed development and management programs.

scholarly journals The methods morphometric analysis’ of basinal systems’ within mountain territories using GIS (case study of the Chornogora’s part of Prut’s basin)

2012 ◽  
Vol 2 (40) ◽  
pp. 68-90
Author(s):  
A. Marchak
Keyword(s):  
Key Words ◽  
Data Base ◽  
Digital Elevation Model ◽  
Morphometric Analysis ◽  
Software Package ◽  
Morphometric Parameters ◽  
Geoinformation Systems ◽  
Digital Elevation ◽  
Elevation Model

In the article is given the methods of fulfillment consecutive stages of the relief morphometric analysis of basinal systems' within mountain territories using software package ESRI ArcGIS Desktop 9.3 (case study of the Chornogora's part of Prut's basin). The results of fulfillment this algorithm is developed digital elevation model, range of analytical and synthetic morphometric maps and hypsographical profiles, circular charts, bar diagrams, plots and tables of relief's various morphometric parameters as well as apportionment for their further complex morphogenetical analysis. Key words: morphometric analysis of the relief, geoinformation systems, geoinformation data base, digital elevation models, morphometric parameters of the relief, analytical and synthetic morphometric maps.

scholarly journals Análise de Risco de Degradação na Bacia Hidrográfica do Riacho do Pontal - PE (Risk Analysis of Degradation in Basin River Pontal – PE)

2012 ◽  
Vol 5 (3) ◽  
pp. 646
Author(s):  
Madson Tavares Silva ◽  
Vicente De P. R. da Silva ◽  
Edicarlos P. de Sousa ◽  
Sonaly D. de Oliveira
Keyword(s):  
Risk Analysis ◽  
Drainage Density ◽  
Morphometric Parameters ◽  
Automatic Process ◽  
Drainage Network ◽  
Low Density ◽  
Gis And Remote Sensing ◽  
Digital Elevation ◽  
Elevation Model ◽  
Low Density Area

Este trabalho teve como objetivo analisar o risco de degradação presente na bacia hidrográfica do Riacho do Pontal-PE, a partir de técnicas de geoprocessamento e sensoriamento remoto da superfície. Parâmetros morfométricos da bacia de drenagem foram obtidos pelo MDE (Modelo Digital de Elevação) utilizando um processo automático através de técnicas de geoprocessamento utilizando o software ARCGIS 9.3. Os resultados demonstraram que a bacia do Riacho do Pontal possui uma área total de 6057,0 km² e perímetro de 464,0 km, a rede de drenagem é de 5ª ordem sendo moderadamente ramificada apresentando um comprimento total de 2060,0 km com um curso principal de 147,6 km, a bacia apresentou uma forma mais alongada, com densidade de drenagem inferior a 0,4 km/km2 assim como baixa densidade hidrográfica, a classe de declividade predominante é do tipo várzea e plano a suave ondulado representado cerca de 90% da área total da bacia. As classes de cobertura de solos predominantes (caatinga densa, caatinga densa degradada e cultivos diversificados) ocupam 5480 km2, área correspondente a 90,4%. As maiores áreas produtoras de sedimento encontram-se próximas a rede de drenagem.Palavras - chave: Rede de Drenagem, Modelo digital de elevação, geoprocessamento. Risk Analysis of Degradation in Basin River Pontal – PE ABSTRACTThis study aimed to analyze the risk of degradation in the watershed of this Pontal-PE stream, from techniques of GIS and remote sensing surface. Morphometric parameters of the watershed were obtained by DEM (Digital Elevation Model) using an automatic process through geoprocessing techniques using software ARCGIS 9.3. The results showed that the Pontal stream basin has a total area of ​​6057,0 km2 and a perimeter of 464,0 km, the drainage network is 5th order being moderately branched having a total length of 2060,0 km with a course main 147,6 km, the basin had a more elongated form, with drainage density less than 0.4 km/km2 well as low-density area, the class of slope is predominantly lowland type and plan the gentle undulating represented about 90% of the total area of the basin. The classes of predominant land cover (caatinga densa, caatinga densa degradada e cultivos diversificados) occupy 5,480 km2, the area corresponding to 90,4%. The major sediment-producing areas are near the drainage network.Keywords: Drainage network, elevation digital model, geoprocessing.

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