The significance of morphometric analysis to understand the hydrological and morphological characteristics in two different morpho-climatic settings

Mahala, Avijit

doi:10.1007/s13201-019-1118-2

Cited by 125 publications

(68 citation statements)

References 32 publications

(76 reference statements)

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“…It was believed that the variation observed in the respective parameters was governed by the physiographic difference and structural condition of the watershed (Nikhil Raj and Azeez 2012; Praveen et al 2018; Biswas 2016). The consistent decrease in N u against u revealed the presence of erosional landform throughout the watershed (Avijit 2019).…”

Section: Stream Number (N U )mentioning

confidence: 83%

“…The R e values of Tikur Wuha SW were varied from 0.31 to 0.59. The result indicated that SW9 and SW10 are more elongate than others implying low peak discharge, whereas SW2, SW3 and SW11 were relatively circular in nature (Avijit 2019).…”

Section: Elongation Ratio (R E )mentioning

confidence: 87%

“…In the study, SW's F s value (Tables 4 and 5) is ranged from 0.2 to 0.85 numbers per km 2 . Low F s indicates that the watershed has less rocky terrain and very high infiltration capacity which contributes toward less erosion (Ajaykumar et al 2019;Avijit 2019). The higher F s value of 0.85 numbers per km 2 in SW7 indicated that the area was dominated by high slope and low permeability.…”

Section: Stream Frequency (F S )mentioning

confidence: 99%

“…D t is an important fluvial parameter which denotes the relative spacing of drainage network of any basin (Avijit 2019). D t is affected by the amount of rainfall, density of vegetation, soil types, infiltration capacity, stages of geomorphic development and relief (Horton 1945;Smith 1950).…”

Section: Drainage Texture (D T )mentioning

confidence: 99%

“…The calculated C value is varied between minimum of 0.41 for SW13 and maximum of 1.74 for SW15 (Tables 4 and 5). Low C value for SW13 revealed that the SW is associated with very low-resistance and low infiltration capacity of bare soils; sparse vegetation and mountainous (steep slope) terrain resulted in high overland flow and high flood potentiality (Farrukh et al 2013;Avijit 2019).…”

Section: Constant Of Channel Maintenance (C)mentioning

confidence: 99%

See 4 more Smart Citations

Quantitative evaluation of watershed attributes for water resources management in the Rift Valley Lakes Basin, Ethiopia: a case from Tikur Wuha river watershed

2020

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Characterization of watershed hydrological process is vital for sustainable water resource management. The principal goal of this study was to investigate the inference of drainage attributes on basic hydrological processes using spatial-based morphometric analysis on Tikur Wuha river watershed. The result obtained indicated that the area was characterized with fifth-order stream. Drainage area with higher stream order has lower infiltration capacity, and the shorter stream lengths were associated with the steepness of the area which affects water flow. Based on N u value, sub-watersheds were categorized in the active erosion stage (SW7) and matured topography development (SW6). The interpretation from watershed geometry identified circular areas most susceptible to rapid hydrological response (SW11). Hydrological process and underlying materials are mainly correlated with the drainage texture parameter, and the lower the values indicated less rocky terrain and very high infiltration capacity which contributes toward less erosion (SW11). Relief parameters such as Rr value indicate the rate of stream flow and are well used in sediment yield estimation. The findings of this investigation will provide core information for water resource planning and further studies like identification of groundwater potential zones; flood risk assessment; erosion-prone area prioritization; and to select suitable sites for the construction of water harvesting structures.

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Section: Stream Number (N U )mentioning

confidence: 83%

Section: Elongation Ratio (R E )mentioning

confidence: 87%

Section: Stream Frequency (F S )mentioning

confidence: 99%

Section: Drainage Texture (D T )mentioning

confidence: 99%

Section: Constant Of Channel Maintenance (C)mentioning

confidence: 99%

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Quantitative evaluation of watershed attributes for water resources management in the Rift Valley Lakes Basin, Ethiopia: a case from Tikur Wuha river watershed

2020

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Landscape domains and information surfaces: Data collection, recording and citation using decimal latitude‐longitude geolocation via the FAIR principles

Whalley

2023

Earth Surf Processes Landf

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There is a need for geomorphology to integrate better with related disciplines, especially in Critical Zone science. To help satisfy this integration, geomorphology's knowledge‐base should extend into biotic as well as geological processes via ‘open data’. To aid information exchange between disciplines, the use of decimal latitude‐longitude (dLL) topographic geo‐referencing is advocated to identify locations of investigations, images and data in accord with the FAIR principles for data: findability, accessibility, interoperability and reusability. While local place names (toponyms) have their uses, they do not provide good location information. Identification of detailed locations using dLL referencing should be used in written, especially published, reports of investigations. Author‐date citations are traditionally used to identify geomorphic knowledge, which can be enhanced when linked to dLL‐specified locations and data such as sample sites and laboratory data. Ways in which dLL specifications might be used in geomorphology and associated disciplines are explored and some geomorphological problems associated with ‘steepland’ landscape domains are presented. Examples show how dLL data can be incorporated into the literature, whereby authors can help provide and develop geomorphic ‘information surfaces’ by using geo‐referencing to enhance ‘open’ science via the FAIR principles.

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An assessment of the geomorphodiversity and land use/cover change (LUCC) effects associated with landslides in Meghalaya, India

Agrawal,

Dixit

2024

Earth Surf Processes Landf

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The Shillong Plateau in the Eastern Himalayas is exposed to high seismicity, neo‐tectonic activity and orographic precipitation that aggravated landslides in the region by affecting hillslope processes. Landscape development is influenced by landslide phenomenon and depends upon geomorphic processes and geomorphodiversity (GmD). It is linked intimately with geomorphology, hydrology and soil type. This study uses a remote sensing and GIS‐based approach to assess the spatial linkage between GmD and landslide distribution in Meghalaya (India). GmD index (GmDI) is developed using geological, morphometric and geomorphological parameters and analysed with landslide distribution. The landslide distribution considering land use/cover change (LUCC) is also examined. The result shows that the region with high‐relief, valley and depression zone, mainly along the Dauki fault, have a high to a very high GmDI. About 61% of landslide localities are in zones of high GmDI, concentrated in the central and eastern parts of Meghalaya. Density analysis of the very high class (class 5) of GmD confirms the same. Most of these landslides occur in dense and light‐vegetated landmasses. However, the LUCC analysis reveals a significant increase in the built area on steeper slopes (average expansion ratio of 2.30 for slopes >15°) between 2017 and 2022, indicating a rising threat of landslides in urban areas of Meghalaya. The study presents the importance of GmD in active tectonic regions with particular reference to landslide potential and recent LUCC. It can aid decision‐makers in planning sustainable developments and risk mitigation strategies for landslide hazards and geoconservation.

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The significance of morphometric analysis to understand the hydrological and morphological characteristics in two different morpho-climatic settings

Cited by 125 publications

References 32 publications

Quantitative evaluation of watershed attributes for water resources management in the Rift Valley Lakes Basin, Ethiopia: a case from Tikur Wuha river watershed

Quantitative evaluation of watershed attributes for water resources management in the Rift Valley Lakes Basin, Ethiopia: a case from Tikur Wuha river watershed

Landscape domains and information surfaces: Data collection, recording and citation using decimal latitude‐longitude geolocation via the FAIR principles

An assessment of the geomorphodiversity and land use/cover change (LUCC) effects associated with landslides in Meghalaya, India

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