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 …

Morphotectonics of the Jamini River basin, Bundelkhand Craton, Central India; using remote sensing and GIS technique

Morphological and morphotectonic analyses have been used to obtain information that influence hydrographic basins, predominantly these are modifications of tectonic elements and the quantitative description of landforms. Discrimination of morphotectonic indices of active tectonics of the Jamini river basin consists the analyses of asymmetry factor, ruggedness number, basin relief, gradient, …

Sustaining the liquid mosaic - Longer steps needed

This critique assesses if the National Water Framework Bill 2016 and the Mihir Shah Committee report are truly interdisciplinary and based on the principles of integrated water systems governance. The question still remains whether the recommendations are enough to bridge existing gaps and address future challenges in water governance.

Focusing on the essentials - Integrated monitoring and analysis of water resources

Welcoming the debate on the assumptions underpinning water resource monitoring in India triggered by the Mihir Shah Committee report, the authors suggest that the proposed National Water Commission should focus on providing integrated data and science to help water managers and policymakers, avoiding getting directly involved in planning or regulation.

Order of the National Green Tribunal regarding camping activities along river Ganga, 22/12/2016

Order of the National Green Tribunal in the matter of Social Action for Forest & Environment (SAFE) Vs. Union of India & Ors. dated 22/12/2016 regarding camping activities along Ganga. The Counsel appearing for the Ministry of Environment, Forest and Climate Change submits that they have already cleared and approved …

High-resolution mapping of global surface water and its long-term changes

The location and persistence of surface water (inland and coastal) is both affected by climate and human activity and affects climate, biological diversity and human wellbeing. Global data sets documenting surface water location and seasonality have been produced from inventories and national descriptions, statistical extrapolation of regional data and satellite …

Order of the National Green Tribunal regarding illegal constructions on flood plain and river bed of Yamuna, Agra, Uttar Pradesh, 30/11/2016

Order of the National Green Tribunal in the matter of Uma Shankar Patwa & Others Vs. Union of India & Others (Earlier titled as D.K. Joshi Vs. Union of India & Ors.) dated 30/11/2016 regarding illegal constructions on flood plain and river bed of Yamuna, Agra, Uttar Pradesh. National Green …

Predictability of seasonal streamflow in a changing climate in the Sierra Nevada

The goal of this work is to assess climate change and its impact on the predictability of seasonal (i.e., April–July) streamflow in major water supply watersheds in the Sierra Nevada. Original Source

Assessing the relative importance of parameter and forcing uncertainty and their interactions in conceptual hydrological model simulations

Predictions of river flow dynamics provide vital information for many aspects of water management including water resource planning, climate adaptation, and flood and drought assessments. Many of the subjective choices that modellers make including model and criteria selection can have a significant impact on the magnitude and distribution of the …

Perspectives on the causes of exceptionally low 2015 snowpack in the western United States

Augmenting previous papers about the exceptional 2011–2015 California drought, we offer new perspectives on the “snow drought” that extended into Oregon in 2014 and Washington in 2015. Over 80% of measurement sites west of 115°W experienced record low snowpack in 2015, and we estimate a return period of 400–1000 years …

Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity

The world’s rivers deliver 19 billion tonnes of sediment to the coastal zone annually1, with a considerable fraction being sequestered in large deltas, home to over 500 million people. Most (more than 70 per cent) large deltas are under threat from a combination of rising sea levels, ground surface subsidence …

The Bosna River floods in May 2014

In May 2014, extreme floods occurred in the lower Sava River basin, causing major damage, with catastrophic consequences. Based on the data gathered, the weather situation in Bosnia and Herzegovina's (BiH) Bosna River basin was analysed and the hydrological conditions were provided, including the results of the probability analysis of …

Relative impacts of mitigation, temperature, and precipitation on 21st-century megadrought risk in the American Southwest

Megadroughts are comparable in severity to the worst droughts of the 20th century but are of much longer duration. A megadrought in the American Southwest would impose unprecedented stress on the limited water resources of the area, making it critical to evaluate future risks not only under different climate change …

Impacts of climate change on the cryosphere, hydrological regimes and glacial lakes of the Hindu Kush Himalayas: a review of current knowledge

The climate, cryosphere, and hydrology of the Hindu Kush Himalayan (HKH) region have changed in the past and will change in the future. This literature review investigates the state of knowledge on climate change and its projected impact on the cryosphere and hydrology of the HKH, with a specific focus …

Megacity pumping and preferential flow threaten groundwater quality

Many of the world’s megacities depend on groundwater from geologically complex aquifers that are over-exploited and threatened by contamination. Here, using the example of Dhaka, Bangladesh, we illustrate how interactions between aquifer heterogeneity and groundwater exploitation jeopardize groundwater resources regionally. Groundwater pumping in Dhaka has caused large-scale drawdown that extends …

Climate change and economic approaches into water allocation: optimization via direct benefits of water—the case study of Rudbar Lorestan hydropower dam (Iran)

Climate change will affect hydrologic patterns in the Middle East over future decades. Already limited water resources will become further limited, creating further challenges for water allocation protocols. While there is no integrated climate/water allocation framework to develop sophisticated dynamic allocation patterns, determining the economic value of water in various …

Extreme hydrological changes in the southwestern US drive reductions in water supply to Southern California by mid century

The Southwestern United States has a greater vulnerability to climate change impacts on water security due to a reliance on snowmelt driven imported water. The State of California, which is the most populous and agriculturally productive in the United States, depends on an extensive artificial water storage and conveyance system …

Prolonged California aridity linked to climate warming and Pacific sea surface temperature

California has experienced a dry 21st century capped by severe drought from 2012 through 2015 prompting questions about hydroclimatic sensitivity to anthropogenic climate change and implications for the future. We address these questions using a Holocene lake sediment record of hydrologic change from the Sierra Nevada Mountains coupled with marine …

Government to set up observatories for climate change study

Union environment ministry is all set to launch the Long-Term Ecological Observatories (LTEO) to bridge the gap of insufficient data on impact of climate change on different regions in the country. “The ecosystems in the country is diverse and there is not enough data available on what impact climate change …

Judgement of the National Green Tribunal regarding Environment Clearance (EC) granted for the widening of NH – 47 and NH – 47 B (between Kaliakavilai …

Judgement of the National Green Tribunal (Southern Zone, Chennai) in the matter of Conservation of Nature Trust & Others Vs District Collector Kanyakumari District. Nagercoil & Others regarding Environmental Clearance (EC) granted by the MoEF & CC in respect of the proposal of National Highways for the purpose of widening …

Exceptional floods in the Prut basin, Romania, in the context of heavy rains in the summer of 2010

The year 2010 was characterized by devastating flooding in Central and Eastern Europe, including Romania, the Czech Republic, Slovakia, and Bosnia-Herzegovina. This study focuses on floods that occurred during the summer of 2010 in the Prut River basin, which has a high percentage of hydrotechnical infrastructure. Strong floods occurred in …

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