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Floods are common in most parts of India particularly during the monsoon season. Flood control and mitigation involves flood plain mapping, zoning, insuring and warning systems as floods cannot be avoided. These measures minimize damage and loss in terms of life and property. In this regard real-time data based decision supports systems (DSS) are crucial for effective flood management.
Inflow forecasting at any given point along the river is...
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Abstract
This report examines the problem involving the pumping of groundwater from a group of 90 existing wells along the banks of the Yamuna River, northwest of Delhi (India), underlain with geologically occurring saline water. It is known that unregulated pumping will lead to up-coning of saline water and therefore it is necessary to determine optimal rates and associated well locations (from an existing group of candidate wells that supply drinking water to the city of Delhi) that will...
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A STUDY OF SALINE FRESHWATER INTERFACE PHENOMINA IN THE MAHANADI DELTA REGION: ORISSA, INDIA
S V N Rao1 I Radhakrishna2 Nitin Joshi1 Ajay Sharma1 Shashank Shekhar3
1. DHI (India) Water and Environment, C R Park New Delhi
2. Integrated Technologies for Groundwater Resource Systems Development, Tarnaka, Hyderaba
3. Department of Geology, Delhi University...
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This is not a new topic and has been discussed by various experts from multi-disciplines in different forums. Yet a holistic view is yet to emerge for any practical planning or operational implementation. Broadly the issues include surface and groundwater management on a sustainable basis. The surface water management depends on topography, location (geography), rainfall/ runoff, land use, urban landscape (imperviousness) and proper storm water drainage system. The groundwater management...
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The term skimming well is used for any technique employed with an intention to extract relatively freshwater from the upper zone of the fresh-saline aquifer. The types of skimming wells include: the conventional single strainer well, multi-strainers wells, scavenger wells, radial collector wells and dug wells. The skimming wells are low discharge (less than 28 l.p.s.) cluster of wells drawing groundwater from relatively shallow depth. Skimming wells are generally designed for irrigation(Saeed...
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Identification of unknown contaminant source(s) in terms of location and strength in space and time for remediation purposes have been central issues in environmental management. The source often occurs in the form of a spillage on the surface or a leakage from underground tanks and pipelines. Generally the only input data that could be possibly obtained for such problems is a concentration profile or release histories at one or more observation wells downstream along the direction of...
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Groundwater models simulate groundwater flow in sub-surface aquifers in terms of quantity (level) and quality (such as salinity) using the mathematical or numerical approach. When a Groundwater model is embedded in a management framework these are often referred as managment models. Managment models can be efficiently used for policy evaluation and operational purposes to achieve one or more objectives while satsifying one more constraints. Operational models ...
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Often groundwater pumping is undertaken assuming the resource to be infinite. This myth has been shattered in the last few decades with increasing scarcity and deterioration in terms of quality as a consequence of over-exploitation and mismanagement of this resource to meet competing demands for drinking water and other needs in urban cities. However, managing groundwater is not an easy task. This is simply because a groundwater molecule underground is always in motion...
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