Hydrology

Order of the National Green Tribunal regarding floating hotel in Tehri Lake, 10/02/2025

Order of the National Green Tribunal in the matter of News item titled "Uttarakhand HC License expired why is floating hotel running?" appearing in the Times of India dated 07.01.2024. The MA was registered on the basis of the report dated June 14, 2024 filed by the National Mission for …

An eco-watershed management approach to inter-connect rivers in India

Many rivers in India are shared resources, flowing through or between more than one province and more than one country. The combined effect of climatic stochasticity, rapid population growth and inefficient water infrastructure is increasing stress on river basin ecosystems.

Surface soil moisture changes during 2007 summer monsoon season derived from AMSR-E Land3 product

Soil moisture is an important component of the hydrological cycle. It contributes significantly to the water and energy flux from the surface of the earth, which in turn drives the atmospheric circulation. In spite of its importance, information on soil moisture is difficult to get. In India, soil moisture-measuring stations …

Ingenious techniques for irrigation sustainability in Himalayan and Shiwalik foothill regions

The groundwater resources of India play a major role in the irrigated agriculture. Therefore, expansion of these resources to increase agricultural production received high priority in the development programmes of the country. The area under irrigation by groundwater through wells is continuously increasing. On the contrary, contribution of canals and …

When juniper and woody plants invade, water may retreat

Dense plants are taking over grasslands in many areas; researchers in the U.S. Southwest are studying how they tap into water supplies--and how to keep them in check.

Climate change: impacts on global agriculture

At the simplest level, weather is what is happening to the atmosphere at any given time. Climate is a measure of what to expect in any month, season or year, and is arrived at using statistics built up from observations over many years. All aspects of the Earth

Flood risk analysis in the Kosi river basin, North Bihar using multi-parametric approach of Analytical Hierarchy Process (AHP)

The Kosi river in north Bihar plains, eastern India presents a challenge in terms of long and recurring flood hazard. Despite a long history of flood control management in the basin for more than 5 decades, the river continues to bring a lot of misery through extensive flooding. This paper …

Ecological limits of hydrologic alteration: environmental flows for regional water management

The Ecological Limits of Hydrologic Alteration (ELOHA) is a new framework offering a flexible, scientifically defensible compromise for broadly assessing environmental flow needs when in-depth studies cannot be performed for all rivers in a region. ELOHA builds upon the wealth of knowledge gained from decades of river-specific studies, and applies …

Climate change impacts on hydrology and water resources of the upper blue nile river basin, Ethiopia

This report aims to evaluate the impacts of climate change on both hydrologic regimes and water resources of the Upper Blue Nile River Basin in Ethiopia where observed hydrologic data are limited. The downstream countries of the Nile River Basin are sensitive to the variability of runoff from the Ethiopian …

Himalayan catastrophe that engulfed North Bihar

The recent Kosi megaflood, caused by a breach in the Kosi embankment in Nepal on August 18, 2008 and a sudden change in the course of the Kosi River, was one of the most significant and damaging flood events ever to hit Bihar. The Kosi disaster also ranks as one …

Gangas moment

New studies, committees and a tag of national river. Will it help? the government has decided to declare the Ganga a national river, following campaigns from several quarters to preserve its cultural and religious significance. A High Powered Ganga River Basin Authority, to be chaired by the prime minister, will …

Losing touch

Sabarmati embankment project ignores warnings, precedents Construction of an embankment along the 10-km stretch of the Sabarmati has begun in Ahmedabad despite warnings that it may hamper natural drainage in the city and that its design is inherently flawed. The 8.5-m-high embankment is part of the Sabarmati Riverfront Development Project, …

Kosi: Rising waters, dynamic channels and human disasters

The recent Kosi floods have proved once again that inadequate control measures have been responsible for the recurring disasters. Typically flood control and riverine studies focus on hydrological information, whereas a much more integrated approach that pays attention to specific morphological factors is required. Since Kosi is a dynamic river …

Management of floods in Bihar

A combination of short- and long-term measures that gives importance to both structural (traditional) means and non-structural techniques is required to solve the perennial flood problem in north Bihar.

Kosi: Rising waters, dynamic channels and human disasters

The recent Kosi floods have proved once again that inadequate control measures have been responsible for the recurring disasters. Typically flood control and riverine studies focus on hydrological information, whereas a much more integrated approach that pays attention to specific morphological factors is required. Since Kosi is a dynamic river …

The orphan of development

The river is almost totally absent in modern day discourse Barrage, dam, embankment, flood, irrigation have a common thread

New vision for Bihar

In a majestic release of bottled-up fury, the Kosi has swept across half of Bihar. The river has gone back to a course it once followed many years ago, inundating roadways and farmlands and leaving an estimated three million people homeless. None of the manmade structures meant to tame the …

The economic impact of forest hydrological services on local communities: a case study from the Western Ghats of India

This recent study by SANDEE examines the link between stream flow, agricultural water use and economic returns to agriculture. Attempts to simulate the likely impacts of regeneration of a degraded forest catchment on stream flow and the consequent impact on irrigation tankbased agriculture in a downstream village. The conventional wisdom …

Water and adaptation to climate change: consequences for developing countries

Global warming is confronting developing countries across the globe with enormous challenges not of their own making. The impacts of a warming world are now threatening to set back progress in improving the quality of life for billions of people. Water resources are likely to be impacted early and strongly …

The central role of dams in destroying our rivers

There is no doubt that dams are the single biggest impediment in ensuring continuous freshwater flow in rivers. Most of India

Hydrology and water allocation in Malaprabha

Malaprabha river basin has been the study area for the development of comprehensive database on the status of water sector and the development of integrated hydro economic model for selected water services. Malaprabha river is a tributary river to the Krishna river and flows through the state of Karnataka in …

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