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Performance audit of water pollution in India – A report by the Comptroller and Auditor General of India

RiversThis report of the Comptroller and Auditor General of India (CAG) deals with the results of the performance audit of water pollution in India for the year ended March 2011. The issue was examined by CAG because various stakeholders working in the field of environment flagged water pollution as the most important environmental issue that concerns us. 

The audit was conducted through document analysis, collection of responses to questionnaires, physical collection and testing of samples. The results of audit, both at the Central level and the State level, were taken into account for arriving at audit conclusions.

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Performance audit of water pollution in India – A report by the Comptroller and Auditor General of India (2011)7.35 MB

Location

Shivpuri, MP, India
Latitude: 25.423290, Longitude: 77.653633

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An assessment of crop water productivity in the Indus and Ganges river basins: Current status and scope for improvement – A research report by IWMI

IWMI ReportThis paper by the International Water Management Institute (IWMI) presents a new approach for analysis of water productivity (WP) of rice and wheat in the Indus and the Ganges river basins, South Asia, based on the integration of readily available remote sensing, national crop productivity and land use statistics and weather data. Understanding crop water productivity over large river basins has significant implications for sustainable basin development planning.  

Three major steps are involved in producing crop water productivity maps: (1) crop dominance map, (2) yield estimates, and (3) water consumption (evapotranspiration (ET)) estimates. The crop dominance map is synthesized from the relevant, and publically available, land use/land cover (LULC) maps with ground truth data. National statistics on crop area and yields are collected, and the yields are interpolated to grid level (500 meters (m) x 500 m) using Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) maps.

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The report of the Krishna Water Disputes Tribunal-II (2010)

The three-member Krishna Water Disputes Tribunal-II, constituted in 2004 headed by Justice Brijesh Kumar gave its judgement on December 30, 2010. KWDT-II freshly assessed the yearly yields in the Krishna and determined the award on the basis of the yearly yield at 65 per cent dependability which was assessed at a total of 2,293 tmcft. 

In its order, announced in an open court, the tribunal allocated a total share of 1,001 tmcft to Andhra Pradesh, 911 tmcft to Karnataka and 666 tmcft to Maharashtra with certain restrictions imposed on each State in keeping with the dependable flows of the rivers on which the allocations have been made. The allocation under the first award (KWDT I) was 811 tmcft for Andhra Pradesh, 734 tmcft for Karnataka and 585 tmcft for Maharashtra.Read More

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The report of the Krishna Water Disputes Tribunal-II (2010)11.73 MB

Location

Prakasham, AP, India
Latitude: 15.718793, Longitude: 79.560344

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Environmental flows in river basins: A case study of river Bhadra - Current Science

This paper from Current Science begins by explaining the concept and the technique of environmental flows and the advantages and relevance of using this technique to maintain the ecology of the rivers.

The quantity and seasonality of water flow in a river may greatly change from its normal condition between a major storage and downstream, thus paving the way for drastic changes in the riverine ecosystem. ‘Environmental flow’ refers to the amount of water considered sufficient for protecting the structure and function of an ecosystem and its dependent species.Read More

The paper goes on to describe the case of river Bhadra, which is the site of a dam that has significantly altered the natural flow of the river and describes the study that aimed at conducting the environment flow analysis of the river.

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