Erosion Modeling in Hard Rock Terrain Using Morphometry: A Case Study from Tamilnadu, India

Dar, Imran Ahmad; Prabu, P.; Dar, Mithas Ahmad

doi:10.1002/tqem.21360

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…Similar to drainage density, the channel maintenance parameter constant is a factor used to measure basin texture characteristics. It is expressed in square kilometers and uses an inverse equation of drainage density parameter [59].…”

Section: Areal Characteristicsmentioning

confidence: 99%

Morpho-Hydrological Analysis and Preliminary Flash Flood Hazard Mapping of Neom City, Northwestern Saudi Arabia, Using Geospatial Techniques

Bashir,

Alsalman

2023

Sustainability

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Neom city is a unique cross-border city connecting Saudi Arabia, Jordan, and Egypt. Although Neom city is of great and critical importance for Saudi Arabia, few hydrological, natural hazard, and geomorphological studies have been undertaken on this region. This work aims to investigate the hydro-geomorphological characteristics and assess the flash flood hazards in Neom city by investigating several valuable morphometric parameters. The Shutter Radar Topography Mission (SRTM) digital elevation model and hydrological and geological data were analyzed in this study using ArcGIS software. Based on the morphometric parameter results, total stream lengths and stream orders were relatively high (17,956.03 km and 5, respectively), whereas the average bifurcation ratio was recorded to be low at 3.54. Basins 10, 12, 17, 30, 31, 32, and 34 were described as large basins, coarse-textured, elongated, with a medium drainage density, low infiltration values, long overland flows, and high values of constant maintenance. Additionally, the El-Shamy approach for flood hazard assessment was applied side by side with the morphometric analysis, which indicated that the possibility of an intense flood hazard is very low. In general, this study suggests that most of the studied basins cover similar and resistant rocks and soils. They have minimal conditions for flooding events and suitable conditions for underground and surface water resources. Therefore, they display high signals of susceptibility to erosion. The morphometric analysis and flash flood assessment techniques applied in this study were time- and cost-effective for the morphometric characterization of landforms. This text deals with the analysis of several environmental characteristics including hydro-morphological characteristics, drainage topography and lithology, soil erosion, groundwater recharge impact, and flash flood signals. Excellent sustainability plans should be reliant on extensive and varied information about the environment. Thus, integrated analyses incorporating environmental characteristics and flood hazard assessment play an important role in adjusting and adapting the suitable socioeconomic and scientific sustainability of the development of the study city. They build up the basic and essential information required to help decision-makers and sustainability managers design and adjust the most suitable sustainability plans for the study city over the long term.

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Section: Areal Characteristicsmentioning

confidence: 99%

Morpho-Hydrological Analysis and Preliminary Flash Flood Hazard Mapping of Neom City, Northwestern Saudi Arabia, Using Geospatial Techniques

Bashir,

Alsalman

2023

Sustainability

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“…Since soil erosion is affected by a number of factors, univariate functioning is irrelevant (Dar et al, 2013).…”

Section: Multi-criteria-based Erosion Susceptibility Assessmentmentioning

confidence: 99%

A Novel Non-Parametric Data Envelopment Analysis (DEA) Approach in Sub-basin Prioritization for Watershed Management in the Kumari River Basin, India

Jaman

Roy

Das

et al. 2023

Preprint

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In a country like India where economy of the area is predominantly based on agriculture, a maximum proportion of people are dependent upon cultivation and therefore the soil health plays as engine to the enhancement of the agricultural productivity. Continuous soil erosion leads to the loss of top soil that has been responsible for systematic degradation of the soil and natural environment with time. In this context, watersheds, as a scale of natural boundaries, can be applied to implement a comprehensive soil management plan for the systematic conservation of the soil resource. In this situation, watershed management has emerged as a new approach that is based on the interrelationships between landuse, soil, and water and the process of planning and management of land, soil, water resources as well as the biotic resources. It is well accepted that the measurement of actual soil loss is not possible, so different proxies and prediction-based models of erosion susceptibility have been widely used for assessing the soil loss. Sub-basin prioritization with respect to erosion susceptibility, therefore, has become increasingly popular in the last few decades as this helps in optimal distribution of resources for management. In a country like India, where the availability of resources is limited, optimal distribution of resources becomes a challenge. Erosion is a complex problem wherein a large number of factors play an important role in influencing this process. Therefore, Multi-Criteria Decision Making (MCDM) techniques are now becoming more popular in this aspect. However, there are a myriad parametric and non-parametric MCDM models have been used to measure sub-basin soil erosion susceptibility. In terms of the non-parametric techniques, the most common are composite ranks. But the linear programming algorithm-based Data Envelopment Analysis (DEA) technique takes into account one possible optimal solution based on a number of solutions. Although the DEA technique is extremely popular in the domain of business management, this approach has never been used in the domain of resource and hazard management. So, this study is a novel approach in this field where the DEA technique has been introduced for sub-basin prioritization. The approach that has been included for this study is one of profit maximization i.e., the maximum efficiency of the sub-watersheds in terms of erosion susceptibility. So, the basins which are characterized by higher DEA scores are experiencing greater risk of erosion (and hence require prioritization). In the Kumari Basin, the sub watershed wise erosion susceptibility does not show any spatial pattern. The most erosion susceptible sub-watersheds which require the greatest priority for the right bank watersheds as compare to the left bank tributary include DMDR041R013, DMDR041R002, DMDR041R009, DMDR041R016 and DMDR041R014.

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Predicting terrain erosion susceptibility from drainage basin morphometry using ALOS-PALSAR DEM: analysis from PCA-weighted AHP approach in a river system of Eastern India

Roy

Das

Sengupta

2022

Environ Dev Sustain

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Erosion Modeling in Hard Rock Terrain Using Morphometry: A Case Study from Tamilnadu, India

Cited by 5 publications

References 17 publications

Morpho-Hydrological Analysis and Preliminary Flash Flood Hazard Mapping of Neom City, Northwestern Saudi Arabia, Using Geospatial Techniques

Morpho-Hydrological Analysis and Preliminary Flash Flood Hazard Mapping of Neom City, Northwestern Saudi Arabia, Using Geospatial Techniques

A Novel Non-Parametric Data Envelopment Analysis (DEA) Approach in Sub-basin Prioritization for Watershed Management in the Kumari River Basin, India

Predicting terrain erosion susceptibility from drainage basin morphometry using ALOS-PALSAR DEM: analysis from PCA-weighted AHP approach in a river system of Eastern India

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