Assessment of rainwater harvesting sites in a part of North-West Delhi, India using geomatic tools

Farswan, Sandhya; Vishwakarma, Chandrashekhar Azad; Mina, Usha; Kumar, V. Sanil; Mukherjee, Saumitra

doi:10.1007/s12665-019-8332-y

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…Consequently, one can assess the potential availability of water for recharge purposes. Focusing on NDVI values further aids in taking the infiltration capacity of soils [94], ecological considerations [95], and land use patterns [96] into account and thereby gaining a better overview regarding the suitability of MAR attempts. The fuzzy AHP analysis conducted based on pairwise comparisons underestimated the role of geology (global weight of 6.95%), drainage density (global weight of 6.28%), and depth to groundwater (global weight of 6.10%), as they ranked at seventh, eighth, and ninth, respectively.…”

Section: Assessment Of the Decision Criteriamentioning

confidence: 99%

Integrated Fuzzy AHP-TOPSIS Model for Assessing Managed Aquifer Recharge Potential in a Hot Dry Region: A Case Study of Djibouti at a Country Scale

Mouhoumed

Ekmekçioğlu

Başakın

et al. 2023

Water

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Given the prevailing arid climate and rapid population growth, groundwater resources face unprecedented challenges globally, including depletion, seawater intrusion, and contamination. Managed aquifer recharge (MAR) technologies have emerged as valuable solutions to address these pressing issues. However, identifying suitable regions for MAR activities is a complex task, particularly at the country level. Therefore, in this study, we propose a robust approach that combines the fuzzy analytical hierarchy process (AHP) and the technique for order of preference by similarity to ideal solution (TOPSIS) to delineate suitable sites for MAR structures. The proposed model was applied to Djibouti, a hot, dry, and water-stressed country. We identified a set of nine decision criteria and conducted a pairwise comparison survey to determine their relative importance. Additionally, the TOPSIS method was employed to integrate the decision layers and prioritize the study area. The results highlight the significance of rainfall, the slope, and the NDVI as the most influential decision parameters, while the drainage density has the least impact. A suitability analysis reveals that 16.38%, 17.96%, and 30.41% of the country have a very high, high, and moderate potential for MAR activities, respectively. Furthermore, a sensitivity analysis demonstrates the stability of the proposed model, affirming the usefulness of the generated suitability map.

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Section: Assessment Of the Decision Criteriamentioning

confidence: 99%

Integrated Fuzzy AHP-TOPSIS Model for Assessing Managed Aquifer Recharge Potential in a Hot Dry Region: A Case Study of Djibouti at a Country Scale

Mouhoumed

Ekmekçioğlu

Başakın

et al. 2023

Water

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show abstract

“…As urban area expands, there will be a toll on natural resources. Water resources are especially sensitive to urban sprawl due to corresponding increases in population, reduction in recharge areas (Bauer et al, 2008;Farswan et al, 2019). Surface water sources are getting polluted, and groundwater will be over-extracted without any consideration to its safe yield resulting in depletion of water resources in terms of both quality and quantity.…”

Section: Fig 1: Trends Of Expansion Pattern In Greater Noidamentioning

confidence: 99%

Analysing Effects on Ground Water Levels Due to Conversion of Rural to Urban Landscapes

Kumar

Veerabhadrappa

2022

Journal of Landscape Ecology

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Greater NOIDA evolved from 1991 with 101 villages to 2020 with 293 villages. This is an ideal case of rural to urban transformation in the immediate past. This transformation led to a decrease in recharging natural surfaces and an increase in impermeable surfaces. Along with the reduction in recharge areas, an increase in population has necessitated more and more extraction of groundwater resulting in an imbalance of water extraction and recharge. The result is depletion of groundwater levels in this area. The area is part of the wide Indo-Gangetic alluvium with sand, silt and clay layers resting on quartzite’s of Delhi Super Group. Geomorphological map prepared using digital elevation models of the area shows older and younger alluvial plains and active flood plains of the river Hindan. Time series analysis of key land use land cover classes shows that recharge areas were reduced from 77 % to 30 % from 2005 to 2019 and impervious surfaces have increased from 19 % to 65 % for the same period. Aquifers of the area are both phreatic and semi-confined. The aquifer parameters estimated through step drawdown test and long duration aquifer performance test indicates that the average coefficient of transmissivity of the area is 1752 m2/day and the average coefficient of storage is 4.84 x 10-4. Discharge of the wells shows a yield of 8 to 16 lps for a drawdown of 3 to 6 m. An attempt has been made to know the behaviour of groundwater levels during the same period as that of land use land cover. The results indicate a 74 % depletion in groundwater levels with an average annual depletion of 21 %. An interrelationship between urban growth and groundwater levels has been established in this study. This analysis indicates that as agriculture declined water levels also depleted and have a positive correlation of 0.852. On the contrary, as the built-up increased water level has depleted hence have a negative relationship with a correlation coefficient of -0.851. To make it a sustainable resource, these overexploited aquifers need careful participatory management by communities, Scientists, and policymakers.

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Remote sensing and field visit for small scale runoff harvesting for agricultural water consumption management, case study at Kariyan, Hormozgan, Iran

Haghiri,

Asef

2024

Environ Earth Sci

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Assessment of rainwater harvesting sites in a part of North-West Delhi, India using geomatic tools

Cited by 8 publications

References 19 publications

Integrated Fuzzy AHP-TOPSIS Model for Assessing Managed Aquifer Recharge Potential in a Hot Dry Region: A Case Study of Djibouti at a Country Scale

Integrated Fuzzy AHP-TOPSIS Model for Assessing Managed Aquifer Recharge Potential in a Hot Dry Region: A Case Study of Djibouti at a Country Scale

Analysing Effects on Ground Water Levels Due to Conversion of Rural to Urban Landscapes

Remote sensing and field visit for small scale runoff harvesting for agricultural water consumption management, case study at Kariyan, Hormozgan, Iran

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