Identification of Artificial Recharge Sites for Nand Samand Catchment

2022 ◽  
Vol 10 (1) ◽  
pp. 114-116
Keyword(s):  
Remote Sensing ◽  
Artificial Recharge ◽  
Social Progress ◽  
Critical Threshold ◽  
Critical Levels ◽  
Artificial Groundwater Recharge ◽  
Natural Conditions ◽  
Peninsular India ◽  
Weighted Overlay ◽  
Thematic Map

Abstract: Security of groundwater is widely regarded as a serious impediment to India's economic and social progress. According to the Central Ground Water Board's (CGWB) assessment, India's groundwater tables are plummeting at an alarming rate, with reserves in some regions reaching critical levels. Unregulated groundwater use in southern peninsular India has also resulted in excessive extraction, lowering the 'critical' threshold. With over 30 million groundwater structures in use, India is on the verge of a disaster of over-extraction that will leave 60% of all aquifers in critical condition within the next two decades. To resolve the issue, a variety of renewable groundwater solutions must be implemented. Artificial recharge is a procedure that augments groundwater at a pace that is significantly greater than the rate of replenishment under natural conditions, which may give a solution. The current study is for the Nand Samand catchment in the district of Rajasthan. The investigation of artificial groundwater recharge sites is being conducted using an integrated Remote Sensing and Geographic Information System (GIS) approach. Thematic maps such as topographic elevation, post-mosoon groundwater level, recharge, slope, transmissivity and soils map are created, and weighted overlay analysis is used to identify areas suitable for artificial recharge. Keywords: Nand Samand catchment, artificial recharge zone, thematic map, remote sensing, GIS

scholarly journals Modeling of Artificial Groundwater Recharge by Wells: A Model Stratified Porous Medium

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1764 ◽  
Author(s):  
Carlos Fuentes ◽  
Carlos Chávez ◽  
Antonio Quevedo ◽  
Josué Trejo-Alonso ◽  
Sebastián Fuentes
Keyword(s):  
Decision Making ◽  
Porous Medium ◽  
Artificial Recharge ◽  
Cost Benefit ◽  
Field Measurements ◽  
Stratified Media ◽  
Artificial Groundwater Recharge ◽  
Industrial Activities ◽  
Groundwater Levels ◽  
The Cost

In recent years, groundwater levels have been decreasing due to the demand in agricultural and industrial activities, as well as the population that has grown exponentially in cities. One method of controlling the progressive lowering of the water table is the artificial recharge of water through wells. With this practice, it is possible to control the amount of water that enters the aquifer through field measurements. However, the construction of these wells is costly in some areas, in addition to the fact that most models only simulate the well as if it were a homogeneous profile and the base equations are restricted. In this work, the amount of infiltrated water by a well is modeled using a stratified media of the porous media methodology. The results obtained can help decision-making by evaluating the cost benefit of the construction of wells to a certain location for the recharge of aquifers.

Canopy-cover thematic-map generation for Military Map products using remote sensing data in inaccessible areas

2010 ◽  
Vol 7 (2) ◽  
pp. 263-274 ◽  
Author(s):  
Anjin Chang ◽  
Yangdam Eo ◽  
Sunwoong Kim ◽  
Yongmin Kim ◽  
Yongil Kim
Keyword(s):  
Remote Sensing ◽  
Canopy Cover ◽  
Remote Sensing Data ◽  
Thematic Map ◽  
Sensing Data ◽  
Map Generation

scholarly journals Thermal regime of the Dnipro Reservoirs

2021 ◽  
Vol 69 (3) ◽  
pp. 300-310
Author(s):  
Viktor Vyshnevskyi ◽  
Serhii Shevchuk
Keyword(s):  
Remote Sensing ◽  
Surface Layer ◽  
Water Temperature ◽  
Thermal Regime ◽  
Lower Layer ◽  
Remote Sensing Data ◽  
Algae Bloom ◽  
Natural Conditions ◽  
The Past ◽  
Heating And Cooling

Abstract Based on the results of regular monitoring and remote sensing data the patterns of water temperature of the reservoirs cascade on the Dnipro River were identified. A characteristic feature of the thermal regime of the Dnipro Cascade has been the water temperature increase over the past decades. In the period 1977–2020 the water temperature in summer increased by 0.74 °C decade−1, and during May–October by 0.65 °C decade−1. An important factor influencing the thermal regime of the reservoirs is the influence of those ones, located upstream. Water from them is discharged from the lower layer, where the processes of heating and cooling are very slow. This has a significant influence on the water temperature of downstream reservoirs, especially on their upper part. The water temperature in this part during spring and summer seasons is lower compared to natural conditions. In autumn it is higher. The temperature of water also depends on the latitude: it rises in the reservoirs located both downstream and to the south. Another important factor influencing the water temperature is the wind, which can change the temperature in the surface layer by 5–6 °С. Water temperature also depends on the intensity of algae bloom – it is higher in the spots of a large bloom.

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