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 …

A GIS-based approach in drainage morphometric analysis of Kanhar River Basin, India

The study indicates that analysis of morphometric parameters with the help of geographic information system (GIS) would prove a viable method of characterizing the hydrological response behaviour of the watershed. It is also well observed that remote sensing satellite data is emerging as the most effective, time saving and accurate …

Extending medium-range predictability of extreme hydrological events in Europe

Widespread flooding occurred across northwest Europe during the winter of 2013/14, resulting in large socioeconomic damages. In the historical record, extreme hydrological events have been connected with intense water vapour transport. Here we show that water vapour transport has higher medium-range predictability compared with precipitation in the winter 2013/14 forecasts …

Climate change, out-migration and agrarian stress: the potential for upscaling small-scale water storage in Nepal

Climate change could have a critical impact on agriculture in Nepal due to changes in the variability of water availability and associated uncertainty. In this context, small-scale water storage—most notably ponds and tanks—can moderate this variability. This report explores the potential role of small-scale storage infrastructure in two subbasins within …

The global groundwater crisis

Groundwater depletion the world over poses a far greater threat to global water security than is currently acknowledged.

A 3-year dataset of sensible and latent heat fluxes from the Tibetan Plateau, derived using eddy covariance measurements

The Tibetan Plateau (TP) has become a focus of strong scientific interest due to its role in the global water cycle and its reaction to climate change. Regional flux estimates of sensible and latent heat are important variables for linking the energy and hydrological cycles at the TP’s surface. Within …

Effects of climate variability and accelerated forest thinning on watershed-scale runoff in Southwestern USA Ponderosa Pine forests

The recent mortality of up to 20% of forests and woodlands in the southwestern United States, along with declining stream flows and projected future water shortages, heightens the need to understand how management practices can enhance forest resilience and functioning under unprecedented scales of drought and wildfire. To address this …

Effects of thermo-erosion gullying on hydrologic flow networks, discharge and soil loss

Thermo-erosion gullies in continuous permafrost regions where ice-wedge polygons are widespread contribute and change the drainage of periglacial landscapes. Gullying processes are causing long-term impacts to the Arctic landscape such as drainage network restructuring, permafrost erosion, sediment transport. Between 2009 and 2013, 35 gullies were mapped in a polygon terrace …

Global covariation of carbon turnover times with climate in terrestrial ecosystems

A global, observation-based assessment of whole-ecosystem carbon turnover times shows that the overall mean global carbon turnover time is about 23 years and that locally its spatial variability depends on precipitation at least as strongly as on temperature.

Future hydropower production in the Lower Zambezi under possible climate change influence

Hydropower is the most important energy source in Mozambique and many other countries in southern Africa. Substantial hydropower development is planned for the Lower Zambezi for the next decades, with regional importance due to integration into the Southern African Power Pool. For such a long-term development, the possible impact of …

Decline in diversity and production of exploited fishery resources in Vembanad wetland system: Strategies for better management and conservation

This paper describes the fishery catch structure of Vembanad wetland system during August 2012 to July 2013. The estimates of fishery production indicated an annual landing of 4387.31 t, in which 480.98 t and 3906.33 t contributed by southern and northern zone of Vembanad respectively. Eighty species of finfishes, five …

China launches two satellites via one rocket

JIUQUAN - China successfully launched two satellites via one rocket at 8:15 a.m. Thursday Beijing Time (0015 GMT) at the Jiuquan Satellite Launch Center in the northwestern Gobi desert. One of the satellites is the Chuangxin-1-04, which is designed to collect and transmit data on hydrology, weather, electric power, and …

Characterization of subglacial pathways draining two tributary meltwater streams through the lower ablation zone of Gangotri glacier system, Garhwal Himalaya, India

An attempt has been made to characterize the subglacial pathways that transport the meltwaters from Chaturangi and Raktavarn glaciers through the lower ablation zone of the Gangotri glacier, Indian Himalaya, by means of dye tracer experiments. Original Source

Recent changes in coastal configuration of Henry’s Island

The swampy intertidal zone and part of the backshore of Henry's Island coast of 1969 have now been submerged. Topographic surveys, analysis of textural and palynological character of sediments coupled with time-series analyais of shoreline change show phasewise erosion. This has resulted in ingression of sea. Modern sand, transported from …

Double threat for Tibet

A comprehensive environmental assessment of the Plateau of Tibet has found that the region is getting hotter, wetter and more polluted, threatening its fragile ecosystems and those who rely on them. The plateau and its surrounding mountains cover 5 million square kilo­metres and hold the largest stock of ice outside …

Order of the National Green Tribunal regarding the development of Sports City in Sector 150, Noida and its effect on the flood plains of river …

Order of the National Green Tribunal (Principal Bench, New Delhi) in the matter of Raghubir Singh Vs. Union of India & Ors. dated 11/08/2014 regarding the development Sports City in Sector 150, Noida and its effect on the flood plains of river Yamuna and Hindon. Previous Orders

Environmental flow requirements of river Sone: impacts of low discharge on fisheries

Environmental flow of the river Sone at Indrapuri barrage was estimated using 36 years of discharge data and the Global Environmental Flow Calculator Software. To maintain the river in moderate condition and to keep basic ecosystem functions intact, at least 18.9% of mean annual runoff (MAR) has been estimated, while …

Transport of short-lived climate forcers/pollutants (SLCF/P) to the Himalayas during the South Asian summer monsoon onset

Over the course of six years (2006–2011), equivalent black carbon (eqBC), coarse aerosol mass (PM 1–10), and surface ozone (O 3), observed during the monsoon onset period at the Nepal Climate Observatory–Pyramid WMO/GAW Global Station (NCO-P, 5079 m a.s.l.), were analyzed to investigate events characterized by a significant increase in …

Potential hydrologic changes in the Amazon by the end of the 21st century and the groundwater buffer

This study contributes to the discussions on the future of the Amazon rainforest under a projected warmer-drier climate from the perspectives of land hydrology. Using IPCC HadGEM2-ES simulations of the present and future Amazon climate to drive a land hydrology model that accounts for groundwater constraint on land drainage, we …

Forests in a water limited world under climate change

The debate on ecological and climatic benefits of planted forests at the sensitive dry edge of the closed forest belt (i.e. at the 'xeric limits') is still unresolved. Forests sequester atmospheric carbon dioxide, accumulate biomass, control water erosion and dust storms, reduce river sedimentation, and mitigate small floods. However, planting …

Judgement of the National Green Tribunal regarding Baitarani river and its use of water by industries, 05/08/2014

Judgement of the National Green Tribunal (Eastern Zone Bench, Kolkata) in the matter of Murli Manohar Sharma Vs Union of India & Others dated 05/08/2014 regarding the use of water of Baitarani River (which originates from Guptaganga hills in Keonjhar District of Odisha) by industries. According to the applicant, Baitarani …

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