Jharkhand

In this study, regional flood frequency relationships have been developed using L-moments for South Bihar, in the alluvial plains of Indo-Gangetic basin and Kaimur-Chhotanagpur Santhal Pargana plateau. The annual maximum peak flood data of twenty-two gauging sites whose catchment areas vary from 11.7 to 3171 sqkm have been used. The mean annual peak floods of these sites vary from 29.15 cumec to 1293.2 cumec. Comparative regional flood frequency analysis studies have been carried out using some of the commonly used frequency distributions viz Extreme Value (EV1), General Extreme Value (GEV), Normal, Log Pareto (GPA) and Wakeby based on L-moments approach.

The study evaluates the applicability of Artificial Neural Networks (ANN) in rainfall-runoff process modeling for the Ajay river basin, Jharkhand to predict the 6-hour ahead runoff at Sarath. Initially three flood events were considered for training, to find out the weights between different layers of the network. The back propagation algorithm has been used for optimization of weights. The developed ANN was validated for rest of the flood events.

This set of case studies is part of a book prepared by Lokayan in collaboration with the Planning Commission titled “Seeds of Hope", covers themes of agricultur

This report by National Institute of Hydrology provides a compilation of the hydrological information of seventeen different river basins of South Bihar (now Jharkhand). Hydrological modeling of a basin requires detailed hydrological information about the basin. Further, the hydrological information of a region or a basin is of immense use to water resources planners and managers. However, the hydrological information collected by different organizations are often scattered and are not in representable form.

 This has been carried out through strengthening its water monitoring system by installation of water meters at source points, recycling of effluent of reject pit discharge to abandoned mine pit, zero effluent discharge by providing sedimentation tanks and re-utilisation of effluent. Apart from water, work was also done on reducing Greenhouse gas emissions.

Read the main article: " Battle for work" by Jean Dreze and Reetika Khera.

Groundwater Arsenic Contamination in the Ganga-Padma-Meghna-Brahmaputra Plain of India and Bangladesh.This report from the Jadhavpur University highlights the intensity and magnitude of the arsenic contamination in the Ganga-Meghna-Bramhaputra plain which includes states Uttar Pradesh, Bihar, Jharkhand, West Bengal and Assam covering an area of 569,749 sq km.

This presentation describes the conservation, effluent treatment and recycling efforts of Hindalco Industries (Jharkhand). Alumina production is highly water intensive and has a major impact on the environment through toxic effluents and greenhouse gases.

This paper on the GIS Development site discusses the approach adopted for establishing ground water information system (GWIS) of the Upper Barakar Basin using geographic informati

This paper on the GIS Development site discusses the findings of a  modeling exercise that was attempted in Lapasiya watershed, Hazaribagh, India.