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  • Jul, 2013
    Volume - 33, No. - 3
    PERFORMANCE EVALUATION OF SRI RAM SAGAR IRRIGATION PROJECT
    Chintalacheruvu Madhusudana Rao and Ravindra Vitthal Kale

    In this study, the performance evaluation of Sri Ram Sagar Project (SRSP) has been carried out through the formulation of a tri-seasonal (kharif, rabi and summer seasons) linear programming model developed using 396 decision variables and 528 constra...

1969 Dec

Issue (Volume No. 33, Number 3)

PERFORMANCE EVALUATION OF SRI RAM SAGAR IRRIGATION PROJECT

In this study, the performance evaluation of Sri Ram Sagar Project (SRSP) has been carried out through the formulation of a tri-seasonal (kharif, rabi and summer seasons) linear programming model developed using 396 decision variables and 528 constraint equations using 44 years (1950-1993) of historical data. Based on the long term historical data, a suitable operating policy has been developed for the better performance of SRSP reservoir. The results reveal that the release combination (3, 6), i.e., three irrigation releases for kharif season and six irrigation releases for rabi season gives 33 years of satisfaction with 11 deficit years out of the 44 years, which is said to be well within the 75% dependability condition. Hence, it is a practicable case of optimal release combination. Further, no irrigation releases during summer season can be assured. Subsequently, the verification of water use efficiency of the reservoir has also been carried out using the selected performance indicators.

by Chintalacheruvu Madhusudana Rao and Ravindra Vitthal Kale
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1969 Dec

Issue (Volume No. 33, Number 3)

A COMPARATIVE STUDY OF ENVIRONMENTAL FLOW REQUIREMENT APPROACHES USING HYDROLOGICAL INDEX METHODS

The Narmada is the largest west-flowing peninsular river ranks seventh in India in terms of water discharge. A number of dams have been constructed on the Narmada River and its tributaries. As such, a need arises to regulate the reservoirs for releasing the adequate water in the river throughout the year for maintaining downstream ecosystem as well as a flushing flow once in a year to ensure spawning/regeneration of fish and other species in the river/flood plains. Accordingly, it is essential to estimate environmental flows for this river. In the present study, the environmental flow requirement at four gauging sites located in upper part of Narmada river have been carried out using Lookup Tables, Tennant and Modified Tennant method (Tessman method). Modified Tennant method is found to be preferred to estimate the environmental flow requirements, which is more acceptable for allocating EFR on monthly basis. Further, intensive investigations would be necessary to obtain data on ecological needs of the river in order to recommend the realistic values of EFR for this river.

by Alpna Dubey , Deva Kant , Omkar Singh and R.P. Pandey
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  • Jul, 2013
    Volume - 33, No. - 3
    OPTIMAL USE OF SURFACE DRAINS FOR ENHANCING GROUND WATER RECHARGE
    Gaurav Goel , Prabhakar Sharma, Ranvir Singh, Baldev Setia

    Growing demand for the fresh Water has resulted in increased exploitation of its limited sources- the foremost of them being the groundwater. Artificial recharge through a network of surface drains can be only of the remedy to this problem. In this p...

1969 Dec

Issue (Volume No. 33, Number 3)

OPTIMAL USE OF SURFACE DRAINS FOR ENHANCING GROUND WATER RECHARGE

Growing demand for the fresh Water has resulted in increased exploitation of its limited sources- the foremost of them being the groundwater. Artificial recharge through a network of surface drains can be only of the remedy to this problem. In this paper, Khepar's model has been used to investigate the effect of drain parameter on the amount of recharge. The parameters which were kept in focus during the investigation were check dam height, number of check dams, bed slope of drain and wetted perimeter of drain. One of the key findings was that the recharge rate is found directly proportional to check dam height, number of check dams, bed slope of drain and wetted perimeter of drain. This formulation can lead to optimization of recharge and consequent raise in water table in addition to effective usage of surface drains.

by Gaurav Goel , Prabhakar Sharma, Ranvir Singh, Baldev Setia
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  • Jul, 2013
    Volume - 33, No. - 3
    MODEL STUDIES FOR EVOLVING HYDRAULIC DESIGN OF BRIDGE ACROSS BRAIDED RIVER
    Sanjay A.Burele

    Bridge development requires careful planning and in-depth study as no undue risk should be taken in its design and construction. Constructing a braided river is still a challenging task. Hydraulic aspects of bridge design mainly consists of selectio...

1969 Dec

Issue (Volume No. 33, Number 3)

MODEL STUDIES FOR EVOLVING HYDRAULIC DESIGN OF BRIDGE ACROSS BRAIDED RIVER

Bridge development requires careful planning and in-depth study as no undue risk should be taken in its design and construction. Constructing a braided river is still a challenging task. Hydraulic aspects of bridge design mainly consists of selection of site, optimum orientation and waterway, location of abutments, design of guide banks, approach banks, and design of piers. Hydraulic model studies were carried out at CW&PRS for the Rail and Road bridges across River Kosi near Nirmali, Bihar ( about 38 km upstream/downstream of Kosi barrage). Various alternatives were analyzed on physical model to arrive at optimum waterway, guide bunds and afflux bunds. Studies were undertaken under existing conditions as well as with proposed bridges for discharge of 22375 m^3/s. and 26900 m^3/s. For waterway of 1.875 km and afflux of 1.35m was observed at the bridge site for discharge of 22375 m^3/s. various trials on the physical model to improve flow conditions at the bridges and to distribute the flow more uniformly through the spans of the bridges by adjusting both guide bund. Construction of Road bridge has been completed and functioning very well. Construction of Rail Bridge is under progress. The present paper describes the hydraulic aspect of various components of the Bridges.

by Sanjay A.Burele
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  • Jul, 2013
    Volume - 33, No. - 3
    A SHORT SCREENING STUDY ON WATER QUALITY OF INDIAN RIVERS AND LAKES
    A.A. Kazmi , Akansha Bhatia , Azfar Shaida , Meena Sharma , Markus Starkl and R. C. Trivedi

    As a crucial subsystem of urban environment, urban rivers and lakes offer many kinds of ecological services which benefit the city dwellers. However, with the growing pace of urbanization and rapid development of economy, urban water pollution proble...

1969 Dec

Issue (Volume No. 33, Number 3)

A SHORT SCREENING STUDY ON WATER QUALITY OF INDIAN RIVERS AND LAKES

As a crucial subsystem of urban environment, urban rivers and lakes offer many kinds of ecological services which benefit the city dwellers. However, with the growing pace of urbanization and rapid development of economy, urban water pollution problems are becoming critical every hour. In order to get an overview of the current water quality, a short screening study on various urban rivers and lakes has been carried out across the country. The aggregate pollution index was assessed in terms of NSF WQI. The condition of most of the urban rivers and lakes are not satisfactory, mainly due to pollution by untreated wastewater. Therefore, it is need of the hour to make provisions for wastewater treatment to meet required water quality targets. A watershed management approach is suggested as most suitable instrument to achieve such an objective. This is a significant task for India, which cannot be achieved in a short period of time, henceforth, a mixed approach comprising of short term (Advanced on-site systems) and medium term (decentralized systems) along with long term (centralized systems) targets need to be adopted for 100% wastewater treatment in urban and peri-urban areas.

by A.A. Kazmi , Akansha Bhatia , Azfar Shaida , Meena Sharma , Markus Starkl and R. C. Trivedi
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  • Jul, 2013
    Volume - 33, No. - 3
    Journal of Indian Water Resources Society
    IWRS

    The World confronts the coupled threats of climate change, resource sustainability, and pollution. Water resources are inextricably linked to these challenges, and the benefits and implications of water research are of key interest to the public, the...

1969 Dec

Issue (Volume No. 33, Number 3)

Journal of Indian Water Resources Society

The World confronts the coupled threats of climate change, resource sustainability, and pollution. Water resources are inextricably linked to these challenges, and the benefits and implications of water research are of key interest to the public, the scientific community, international agencies, and government institutions. To restate the obvious that water is the basis of life and the engine for social and economic growth,The Indian Water Resources Society attempts to address such challenges. The Indian Water Resources Society is thus dedicated to the advancement of the science and technology of water resources development and management.

by IWRS
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