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Ray, D.
- Study of Groundwater and Surface Water Interaction in Kaliaghye River Sub-Basin, Paschim Medinipur (W.B.)
Authors
1 Water Resources Development Directorate, GoWB, Kolkata, IN
2 School of Water Resources Engineering, Jadavpur University, Kolkata, IN
Source
Indian Science Cruiser, Vol 28, No 6 (2014), Pagination: 37-47Abstract
The interactions between groundwater and surface water are complex. To understand these interactions in relation to climate, landform, geology, and biotic factors, a sound hydrogeo-ecological framework is needed. The mechanisms of interactions between groundwater and surface water as they affect recharge and discharge processes are comprehensively outlined, and the ecological significance and the human impacts of such interactions are emphasized here. This thesis also over views the interaction process with variation of components of hydrologic cycle. Groundwater could be considered as an immense reservoir, from which only a certain amount of water can be withdrawn without affecting the quantity and quality of water. It is recognized that quantity and quality of groundwater are intimately related and should be considered accordingly. Though here only consider the quantitative analysis's of the sub-basin as to draw attention of riparian that how much inevitable the qualitative and quantitative management of groundwater resources.Keywords
Interactions between Groundwater and Surface Water and Hydrologic Cycle.
- Groundwater - Surface Water Interactions in the Hyporheic Zone
Authors
1 Water Resources Development Directorate, Government of West Bengal, IN
Source
Indian Science Cruiser, Vol 29, No 2 (2015), Pagination: 16-20Abstract
The hyporheic zone is the region in unconfined near-stream aquifers, where stream water is present, including zones where stream water is mixed with groundwater. The mechanism of interaction between groundwater and surface water in hyporheic zone is inevitable to understand as it affect recharge and discharge processes. The interaction process in this zone relates to temperature as the permeability depends on the hydraulic conductivity of the layer sediments. The ecological significance and the human impacts of such interactions are emphasized here.Keywords
Interactions Between Groundwater, Surface Water, Hyporheic Zone, Attenuation, Groundwater, Degradation.- Impacts of Climate Changes on Groundwater Depletion
Authors
1 Water Resources Development Directorate, Kolkata, GoWB, IN
Source
Indian Science Cruiser, Vol 29, No 6 (2015), Pagination: 9-19Abstract
The relationship between the changing climate variables and groundwater is more complicated and poorly understood. Climate change impacts may add to existing stress on groundwater resources by impeding recharge capacities in some areas in the world. In some vulnerable areas, such impacts on groundwater resources may render the only available freshwater reserve unavailable or unsuitable for use in the near future. Climate changes will enhance groundwater’s criticality for drought proofing agriculture and as well as threat to there source. However, groundwater has received little attention from climate change impact assessments compared to surface water resources. In this paper the impacts of Climate Changes on Groundwater Depletion has been death with in details. Aquifers and groundwater-dependent ecos3'stems arc being stressed due to increasing demand from water consumption, irrigation and climate change. These pressures modify groundwater levels and their temporal patterns and threaten vital ecosystem services such as arable land irrigation and ecosystem water requirements, especially during droughts. There may be other associated impacts, such as seawater intrusion, water quality deterioration, potable water shortage etc. The greater variability in rainfall could mean more frequent and prolonged periods of rising or depleting groundwater levels, and saline water intrusion in coastal aquifers due to sea-level rise and resource reduction. Groundwater resources am related to climate change through the direct interaction with surface water resources, such as lakes and rivers, and indirectly through the recharge process. The direct effect of climate change on groundwater resources depends upon the change in the volume and distribution of groundwater recharge.