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Groundwater
A study of saline freshwater interface phenomena in the Mahanadi delta region (Orissa)
Posted on 10 Jul, 2010 10:40 PMThe subsurface aquifer systems in Mahanadi delta region in Orissa (India) is largely characterized by two groups of freshwater aquifer systems, both of which are prone to saline water mixing/migration with time and development:
- The south western Mahanadi delta region is represented by unconfined to semi-confined freshwater aquifers underlained by brackish/saline aquifer systems with a diffusion boundary.
- The north eastern parts of Mahanadi delta is represented by deep freshwater confined aquifers overlained by brackish/saline water aquifers with aquitard/ aquiclude boundary.
A baseline survey of groundwater quality in coastal aquifers of Andhra Pradesh - A research report by National Institute of Hydrology
Posted on 10 Jul, 2010 01:09 PMThe study provides an analysis of groundwater quality to identify probable pollution or contamination in coastal aquifers of Kakinada in Andhra Pradesh. Sampling surveys have been conducted in the months of May 99, August 99 and November 99 and about 186 water samples were collected from shallow wells, filter points, canal water and rainwater. The spatial and temporal variations of water quality parameters are presented in the report.
Stream aquifer interaction in a multi-layered system – A research report by National Institute of Hydrology
Posted on 07 Jul, 2010 06:33 PMIn the present report a mathematical model has been developed for the study of stream aquifer interaction in multilayered system viz. a three-aquifer system, in which aquifers are separated by aquitards, considering varying stream-stage and vertical flow through aquitards. The model enables the computation of rates of recharge to the upper aquifer and exchanges of flow among aquifers along with the spatial and temporal distributions of piezometric heads in the aquifers.
Influence of fractured zone on seepage from a water body – A research report by National Institute of Hydrology
Posted on 06 Jul, 2010 11:47 PMThe present study is in continuance with the earlier investigations made regarding the seepage from a surface water body in a multilayered aquifer system, wherein the influence of varying dimensions of a fractured-zone in a aquitard on the seepage from a source had been investigated. The objective is to examine the influence of a fractured-zone in a confining aquitard on the seepage from a surface water body. The issues covered include the influence of –
- The location with respect to the source of a fracture in the aquitard
- The position of the fractured aquitard at various depths in the aquifer system on the seepage from the source
Feasibility study of rainwater harvesting in semi-arid region – A research report by National Institute of Hydrology
Posted on 05 Jul, 2010 11:50 PMThe report gives an account of a feasibility study of rainwater harvesting in semi-arid regions. A review of water harvesting systems is followed by a section wherein numerical solutions for surface flow equations are explained.
Hydrological aspects of watershed development - A research report by National Institute of Hydrology
Posted on 04 Jul, 2010 10:28 PMThe report deals with the hydrological aspects of watershed development and describes watershed components and watershed models. It gives an account of the various watershed models in details including data requirement, input, output, various physical processes and governing equation. The suitability of a particular model to Indian condition is also highlighted in the report.
Optimal operation of groundwater skimming wells A study of 90 wells along the river Yamuna at Palla,North Delhi
Posted on 02 Jul, 2010 04:49 PMAbstract
A study of saline freshwater interface phenomenon in the Mahanadi delta region, Orissa
Posted on 02 Jul, 2010 04:47 PMABSTRACT
Groundwater management: The critical issue dealing with normative concerns of equity and sustainability in watershed development in India.
Posted on 02 Jul, 2010 04:31 PMABSTRACT
Effect of discontinuous aquitard on the seepage from a static water body - A research report by National Institute of Hydrology
Posted on 01 Jul, 2010 03:46 PMIn this study, the influence of a discontinuous aquitard on the seepage from a recharge source in a multilayered aquifer system, with the prescribed hydrogeological set-up, has been subjected to investigation.