Hydrodynamic Simulation of River Yamuna for Riverbed Assessment: A Case Study of Delhi Region

Vijay, Ritesh; Sargoankar, Aabha; Gupta, Alka

doi:10.1007/s10661-006-9405-4

Cited by 35 publications

(14 citation statements)

References 9 publications

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“…The low fluctuations of surface water in different seasons must be a consequence of water level control. However, heavy rain events are reported to lead to short-term inundations on the floodplains in monsoon season regularly (Vijay et al 2007). At Palla, there is a steep gradient from surface water to groundwater and between shallow and deeper groundwater.…”

Section: Resultsmentioning

confidence: 99%

“…is almost absent in the shallow groundwater. This may be related to water level fluctuations in the monsoon season (Vijay et al 2007), leading to a re-aeration and the precipitation of Fe-(hydr)oxides. Stable Fe-(hydr)oxides in the sediment are a sorbent for As, so riverbank sediments could be an effective sink for As (Lalwani et al 2004).…”

Section: Heavy Metals and Arsenicmentioning

confidence: 99%

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Assessment of the potential for bank filtration in a water-stressed megacity (Delhi, India)

et al. 2010

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In the densely populated semi-arid territory around Delhi, the water demand is rising continuously, while the surface-and groundwater resources are threatened by contamination and overexploitation. This is a typical scenario in many newly industrialising and developing countries, where new approaches for a responsible resources management have to be found. Bank filtration holds a great potential, thus being a low tech method and benefiting from the storage and contaminant attenuation capacity of the natural soil/rock. For this study, three field sites have been constructed to investigate bank filtration in different environments in and around the megacity with a main focus on inorganic contaminants. Hydraulic heads, temperature gradients and hydrochemistry of surface water and groundwater were analysed in three different seasons. Depending on sitespecific conditions, distinct hydrogeological conditions were observed and both positive and negative effects on water quality were identified. Most concerning issues are the impact of anthropogenic ammonia, the mixing with ambient saline groundwater and the mobilisation of arsenic during the reductive dissolution of manganese-and iron-(hydr)oxides. Positive aspects are the dilution of contaminants during the mixing of waters from different sources, the sorption of arsenic, denitrification, and the precipitation of fluoride under favourable conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Heavy Metals and Arsenicmentioning

confidence: 99%

Assessment of the potential for bank filtration in a water-stressed megacity (Delhi, India)

et al. 2010

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“…[2]. Several researchers including Patro et al [3], Usul and Turan [4], Vijay et al [5] and Wasantha Lal A. M. [6] has calibrated channel roughness for different rivers for the development of hydraulic model. Datta et al [2] estimated single channel roughness value for open channel flow using optimization method, taking the boundary condition as constraints.…”

Section: Introductionmentioning

confidence: 99%

Calibration of HEC-RAS Model on Prediction of Flood for Lower Tapi River, India

Timbadiya¹,

Patel²,

Porey³

2011

JWARP

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Channel roughness is a sensitive parameter in development of hydraulic model for flood forecasting and flood inundation mapping. The requirement of multiple channel roughness coefficient Mannnig's 'n' values along the river has been spelled out through simulation of floods, using HEC-RAS, for years 1998 and 2003, supported with the photographs of river reaches collected during the field visit of the lower Tapi River. The calibrated model, in terms of channel roughness, has been used to simulate the flood for year 2006 in the river. The performance of the calibrated HEC-RAS based model has been accessed by capturing the flood peaks of observed and simulated floods; and computation of root mean squared error (RMSE) for the intermediated gauging stations on the lower Tapi River.

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“…These approaches and resources have also been used to support hydrological and hydraulic calculations (e.g. Ballais et al, 2005;Vijay et al, 2007;Apel et al, 2009;Neal et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Comparing historical-hydrogeomorphological reconstitution and hydrological-hydraulic modelling in the estimation of flood-prone areas – a case study in Central Portugal

Santos

Tavares

Andrade

2011

Nat. Hazards Earth Syst. Sci.

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Abstract. The Arunca River basin in Central Portugal has a historical record of hazardous events related to floods, causing widespread disturbance. This article describes the application of two approaches based on well-known methods for the estimation of flood-prone areas: (i) historicalhydrogeomorphological reconstitution, applied to the entire Arunca River basin, and (ii) hydrological-hydraulic modelling, applied to four sections selected from different (upper, middle and lower) sectors of the basin and including urban and rural areas along the Arunca River. The mapping of the flood-prone areas obtained by these two methods was compared in order to identify the main differences and similarities. Human interventions (river channel and floodplain morphological changes) were found to be the main factor explaining the differences and similarities between the results obtained by both methods. The application of hydrological-hydraulic modelling proved important in reinforcing the results of the historical-hydrogeomorphological method; it also helped in complementing the results produced by the latter method in urban areas and in areas with insufficient historical records. The application of the historical-hydrogeomorphological method, in turn, allowed for the size of the flood-prone areas to be determined where the primary data (e.g. geometry, roughness and flow) was not accurate enough for hydrological-hydraulic modelling. The methodological approach adopted demonstrates the strong complementary relationship between the different existing methods for estimating flood-prone areas, and may be reproduced for other drainage basins.

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Hydrodynamic Simulation of River Yamuna for Riverbed Assessment: A Case Study of Delhi Region

Cited by 35 publications

References 9 publications

Assessment of the potential for bank filtration in a water-stressed megacity (Delhi, India)

Assessment of the potential for bank filtration in a water-stressed megacity (Delhi, India)

Calibration of HEC-RAS Model on Prediction of Flood for Lower Tapi River, India

Comparing historical-hydrogeomorphological reconstitution and hydrological-hydraulic modelling in the estimation of flood-prone areas – a case study in Central Portugal

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