Rivers

Featured Articles
November 25, 2022 These maps at the watershed scales have been made to not only ensure inclusion of different freshwater ecosystems, their connectivity and hydrological processes, but can also provide a spatial context for conservation decisions.
A stream at Anini, Arunachal Pradesh (Image Source: Roshni Arora)
October 30, 2022 This book by Dr. Mitul Baruah presents a fascinating, ethnographic account of the challenges faced by communities living in Majuli, India, one of the largest river islands in the world, which has experienced immense socio-environmental transformations over the years, processes that are emblematic of the Brahmaputra Valley as a whole. This is an excerpt from the book.
Floods are recurrent phenomena in Assam (Image: Mitul Baruah)
October 11, 2022 In an effort to inform the general public, especially citizen activists, policymakers, researchers, and students, about the current status of the Vrishabhavathi river, Paani.Earth has created the necessary maps, data, analysis, and information to drive conservation awareness and action around the river.
Vrishabhavathi river (Image Source: Paani.Earth)
October 6, 2022 Rapid urbanisation and faulty land use policies are rapidly destroying forests, grasslands and wetlands in Jammu and Kashmir, India and the ecosystem value services they provide. Can these valuable ecosystems be saved?
Deteriorating ecosystems of Jammu and Kashmir, India (Image Source: tkohli at Flickr via Wikimedia Commons)
September 5, 2022 In an attempt to present a perspective on how rivers are used and abused, a map of the Bengaluru rivers illustrate how waste flows through natural river corridors, polluting the rivers and altering their status.
Vrishabhavathi river flow at Thagachguppe Bridge, Kumbalgodu (Image Source: Paani.Earth)
August 11, 2022 This could lead to water quality crisis reinforcing the need for basin-specific management strategies
Around the world, more than a fifth of nitrogen released by human activity ends up in aquatic ecosystems (Image: Wikimedia Commons)
Interstate river water disputes (IRWD) act (1956) and its legal provisions
N Sasidhar writes about the interstate river water disputes act and its legal provisions. Posted on 09 Nov, 2011 10:01 PM

This paper elaborates the techno – legal aspects of Interstate river water disputes act – 1956 which was enacted to resolve the water disputes among the basin states of an interstate river / river valley. This Act’s main purpose is to protect the interests of a downstream state when water resources available in an upstream state are put to additional use.

Interstate River Water Disputes Act – 1956 (IRWD Act) was first enacted on 28th August, 1956 by Indian parliament on the eve of reorganization of states on linguistic basis to resolve the water disputes that would arise in the use, control and distribution of an interstate river or river valley. This Act further has undergone amendments subsequently and its recent amendment took place in 2002. It also validates the previous agreements (if any) among the basin states to harness water of an interstate river/ river valley.

Water quality hot-spots in rivers of India – A report by Central Water Commission
This report by the Central Water Commission (CWC) attempts to provide the water quality scenario of our rivers. Posted on 08 Nov, 2011 01:03 PM

River Water QualityIt evolves a methodology for identifying hot spots in Indian rivers. The water quality data is based on the average values observed during the last ten years (2001-2011) at 371 monitoring stations of CWC on almost all major, medium and minor rivers in India. In respect of Dissolved Oxygen and Biochemical Oxygen Demand, the Central Pollution Control Board's classification has been considered for evaluating the hot spot in the rivers.

The physical and chemical quality of river water is important in deciding its suitability for drinking purposes. As such the suitability of river water for potable uses with regard to its chemical quality has to be deciphered and defined on the basis of the some vital characteristics of the water. Bureau of Indian Standards (BIS) vide its document IS: 10500:1991, edition 2.2 (2003‐09) has recommended the quality standards for drinking water and these have been used for finding the suitability of river water. On this basis of classification, the natural river water of India has been categorized as desirable, permissible and unfit for human consumption.

Assam’s strategy and action plan on climate change - Recommendations - First draft - ASTEC (2011)
ASTEC prepares Assam's action plan on climate change. Posted on 07 Nov, 2011 11:20 AM

This report by the Assam Science Technology & Environment Council (ASTEC) contains the compiled recommendation of three consultative workshops organized in Assam University, Gauhati University and

Advancing development - Towards sustainable livelihoods - Madurai Symposium - DHAN Foundation - September 14-18 ( 2011)
The symposium highlights the importance of rainwater harvesting in the context of climate change. Posted on 04 Nov, 2011 08:47 AM

The Madurai Symposium organised by the

Environmental monitoring programme on water quality in Kerala – A report by KSCSTE and CWRDM
Streams receive stress from sewage and organic effluents, as per this study. Posted on 03 Nov, 2011 08:54 PM

water samplingThis report by the Kerala State Council for Science, Technology and Environment (KSCSTE) and Centre for Water Resources Development and Management (CWRDM) on water quality monitoring in Kerala covers all its forty four river basins. This is being done under the “Environmental Monitoring Programme on Water Quality” under which samples are being collected both from surface and groundwater sources.

Groundwater sampling stations were fixed after conducting a sanitary survey in the panchayats. Water Quality Information System is being developed using Geographical Information Systems (GIS) to manage the water quality from point or non-point source of pollution.

In the first phase of the project, three river basins of Kerala viz. Kabbini, Periyar and Neyyar were monitored. The network was later expanded to basins such as Chaliyar, Kadalundi, Meenachil, Karamana, Anjarakandi, Pamba, Muvattupuzha, Bharatapuzha, and Chalakudy. 

Climate change impact assessment of water resources of India - A paper from Current Science
This study had been taken up to quantify the possible impacts of the climate change on the water resources of Indian river systems. Posted on 02 Nov, 2011 10:52 AM

Climate change impact on water resourcesThis paper published in the journal Current Science presents the findings of a study has been taken up to quantify the possible impacts of the climate change on the water resources of Indian river systems within the constraints of the uncertainty of climate change predictions. The study uses the PRECIS daily weather data to determine the spatio-temporal water availability in the river systems.

A distributed hydrological model, namely SWAT has been used to simulate all the river basins of the country. The analysis has been performed to evaluate the severity of droughts and floods and thus identify the vulnerable hotspots that may require attention in view of the climate change in various parts of the country.

Impacts of climate change and climate variability on the water resources are likely to affect irrigated agriculture, installed power capacity, environmental flows in the dry season and higher flows during the wet season, thereby causing severe droughts and floods in urban and rural areas. Climate change impacts on water resources which are addressed and analysed in the present study include impacts on annual and inter-annual water availability as well as extreme events of droughts and floods.

Fisheries and livelihoods in Tungabhadra basin: Current status and future possibilities – A working paper by Institute for Social and Economic Change
Security of tenure is an important issue and fishermen are concerned about the rights to access and the use of common waters, the study says. Posted on 30 Oct, 2011 01:02 PM

This study by Institute for Social and Economic Change (ISEC) aims at understanding the livelihood patterns of fishermen within the Tungabhadra sub basin, a tributary of river Krishna located in peninsular India. Lack of integrated approach in development initiatives and water management plans warrants the need for Integrated Water Resource Management to support livelihoods. The study focuses on fisheries as a source of livelihood, current status and institutional support available, people dependant on it, development initiatives and suggestions for improvements.

Deciphering environmental flows - An article in Seminar magazine - Jayanta Bandyopadhyay
All stakeholders related to water systems need to increasingly understand the basis of various claims of assessing environmental flows, the study says. Posted on 30 Oct, 2011 10:45 AM

Author: Jayanta Bandyopadhyay

This article published in the Seminar 626, October 2011 argues that our current state of knowledge of water systems and ecological modelling related to flows of water, which includes projecting a single quantitative figure of water requirements, is inadequate. Such a unilateral prescription of environmental flows or water requirements of aquatic systems as a method for the resolution of water conflicts may actually become the source of many new conflicts.

Environmental flows in water resources policies, plans, and projects - Case studies by IBRD
Environmental flows are really about the equitable distribution of and access to water and services provided by aquatic ecosystems, the report says. Posted on 29 Oct, 2011 06:34 PM

EFlowThis report comprising a set of case studies by International Bank for Reconstruction and Development (IBRD) presents how environmental flows is dealt with in water resources policies, plans, and projects. It focuses on the integration of environmental water allocation into integrated water resources management (IWRM) and so fills a major gap in knowledge on IWRM.

Mapping drought patterns and impacts: A global perspective – A research report by IWMI
Regions with an unreliable and vulnerable nature of river discharge, and having the largest drought deficits and durations are highlighted in this report. Posted on 26 Oct, 2011 08:11 PM

This study by the International Water Management Institute (IWMI) examines the global patterns and impacts of droughts through the mapping of several drought-related characteristics – either at a country level or at regular grid scales. Characteristics cover various aspects of droughts – from global distribution of meteorological and hydrological drought risks to social vulnerability and indices related to water infrastructure.

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