Morphometric Analysis Using SRTM-DEM and GIS of Nagar River Basin, Indo-Bangladesh Barind Tract

Sarkar, Debabrata; Mondal, Prolay; Sutradhar, Subhasish; Sarkar, Pranab

doi:10.1007/s12524-020-01106-7

Cited by 44 publications

(19 citation statements)

References 90 publications

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“…[1][2][3]. The development of a catchment's drainage network and the evolution of its morphological features are mainly controlled by lithology and structure [2,4]. Lithology affects the physical (e.g., permeability, susceptibility to erosion, hardness, etc.)…”

Section: Introductionmentioning

confidence: 99%

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

et al. 2020

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Morphometric analysis can be used to investigate catchment dynamics and tectonic processes responsible for the development of drainage catchments and to support flood risk assessment. In this study, a comparative GIS-based morphometric analysis between the main southern and northern sub-catchments of the Sperchios River basin, Central Greece, was performed, using geospatial and remote sensing data. The goal was to investigate their correlation with the peculiar geotectonic activity and the frequent flash-flood events that occur in the river floodplain. All sub-catchments characteristics are linked with the geological formation types of the area, in combination with ongoing tectonic activity. The results indicate that drainage network development is significantly controlled by the region’s overall tectonic activity. The morphometric characteristics—i.e., bifurcation ratio, drainage density, circularity ratio, elongation ratio and water concentration–time values, reflect the flood-prone character of the southern part of Sperchios River catchment in comparison to the northern part, especially during intense rainfall events. The study can provide valuable insight into identifying how morphometric characteristics are associated with increased flood hazard.

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Section: Introductionmentioning

confidence: 99%

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

et al. 2020

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“…Porém as sub-bacia 5 e 7, podem ser consideradas pouco alongadas, sendo estas as sub-bacias que apresentam dinâmica morfométrica que mais influenciam no regime de escoamento. Por outro lado, os índices de rugosidade elevados também indicam vulnerabilidade à inundações (Sarkar et al 2020), como observado nas subbacias 9, 4, 8, 7, 6 e 3, nesta ordem. Cabe ressaltar que o Ir, por caracterizar o relevo, associa-se ao escoamento superficial.…”

Section: Resultsunclassified

“…Semelhantemente, a Rr, caracteriza a declividade e a sua capacidade de transportar água e sedimentos (Kabite et al 2018;Sarkar et al 2020). Desta forma, valores elevados mostram presença de áreas montanhosas e valores baixos indicam áreas de vales (Mundetia et al 2018).…”

Section: Resultsunclassified

“…Análises com essa perspectiva são úteis para o delineamento de estudos de campo e planejamento de ações estratégicas para manutenção da qualidade e quantidade de recursos hídricos e o potencial de inundações e de erosão em determinadas regiões de uma bacia hidrográfica (Sarkar et al 2020). De forma similar, a adoção da divisão de uma bacia hidrográfica em sub-bacias, permite ranquear os fatores que potencializam a infiltração ou o escoamento, priorizar as ações a serem adotadas para a conservação e recarga dos recursos hídricos (Mundetia et al 2018).…”

Section: Divisão Fisiográfica Da Bacia Do Rio Buranhém Como Subsídio Para O Planejamento E Gestão Dos Recursos Hídricos Introduçãounclassified

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Divisão fisiográfica da bacia do rio Buranhém como subsídio para o planejamento e gestão dos recursos hídricos

Silva

Lopes

Zanchi

et al. 2020

G. Sci.

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A análise fisiográfica das bacias hidrográficas e a sua caracterização são ferramentas para a gestão destes territórios. O estudo objetivou avaliar estas características para a bacia hidrográfica do rio Buranhém, no Sul da Bahia, ponderando-as como fatores de impacto ambiental de modo a compartimentalizar a bacia. Realizou-se o processamento do Modelo Digital de Elevação (MDE) e da cobertura do solo cedidos pelo Fórum Florestal do Extremo Sul da Bahia utilizando o software QGIS 2.18. Também foram analisados os dados hidrometeorológicos, de vazão e precipitação disponíveis na rede nacional (Hidroweb/ANA). Os dados foram avaliados por sub-bacia, atribuindo pesos de acordo com o efeito de transmissibilidade superficial da água e concentração do deflúvio, descritos na literatura. Observou-se que bacias alongadas, com baixa cobertura vegetal e relevo acentuado podem ter tendência a inundações devido ao escoamento superficial favorecido, o que resulta em riscos de erosão, perda de solo, assoreamento, comprometimento da qualidade da água e baixa disponibilidade de água ao longo do tempo. A fisiografia se deu com a compartimentalização em quatro sub-bacias de contribuição de acordo com o potencial de impacto nos recursos hídricos, servindo de apoio para a gestão da bacia como território heterogêneo com diferentes tendências naturais e antrópicas.

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“…Himayoun and Roshni (2020) found that as the sinuosity increases, the erosion also increases for a relatively significant areal extend. Sarkar et al (2020) also chose flow gradient as an important parameter for understanding the erosional stage. Because of the different initial conditions of the experiment, the results of the study were somewhat different from this study, but overall showed an increase or decrease trend, and both had a good correlation with the surface roughness.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Surface Runoff Pathways and Erosion Using Hydrological Attributes Under Simulated Rainfall

Liu

Song

et al. 2021

Front. Earth Sci.

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Conceptualisation of geo-hydrological characteristic of erosive runoff are of particular importance and has been required in recent soil erosion control. This study aimed to explore the feasibility of applying hydrological attributes to characterize surface runoff pathways in the process of hillslope soil erosion due to rainfall. Combined with sub-millimeter high-resolution laser scanning and computer digital image processing method, three hydrological indicators (i.e., sinuosity, gradient and orientation) were used to investigate the changes of the surface runoff pathways on the slope of three typical southern red soils (i.e., shale (HS), and Quaternary red clay soils (HQ1 and HQ2) under simulated rainfall conditions). The results indicated no significant changes of sinuosity with a mean value of 1.19. After the rainfall with the intensity of 1 mm/min and 2 mm/min, the orientation and gradient changed dramatically. The greatest changes appeared at the first rainfall, which showed that the biggest increase of gradient was 26.78% and it tended to be close to the original slope of the test plot, while the orientation dropped by 5.60–31.44%. Compared with HS and HQ1, the runoff pathway characteristics of HQ2 changed more consistent. The rainfall intensities had a significant impact on the correlation between indicators. The determination coefficients sorting with surface roughness were orientation > graient > sinuosity. And they were significantly linearly related to runoff under 1 mm/min rainfall intensity, while had positive correlation with sediment under 2 mm/min rainfall intensity (p < 0.05). In conclusion, there were more remarkable relationships between orientation, gradient and slope erosion under 1 mm/min rainfall intensity. This provided an innovative idea, that is applying the orientation and gradient to the simulation and prediction model of the rainfall erosion process in the sloping farmland in the southern red soil area.

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Morphometric Analysis Using SRTM-DEM and GIS of Nagar River Basin, Indo-Bangladesh Barind Tract

Cited by 44 publications

References 90 publications

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

Divisão fisiográfica da bacia do rio Buranhém como subsídio para o planejamento e gestão dos recursos hídricos

Characterization of Surface Runoff Pathways and Erosion Using Hydrological Attributes Under Simulated Rainfall

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