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 …

Water quality studies of Kolleru lake, Upputeru river and Enamaduru drain

Lakes are usually an integral part of a drainage basin. Lakes are either fresh water or salt water lakes. Kolleru lake is the largest freshwater lake in South India. Various physical and chemical inputs manifested through the hydrology of the catchment area will affect the quality and quantity of lake …

Non starters

Several critical programmes for groundwater recharge, micro-irrigation and rainfed agriculture failed to take off. The Central Ground Water Board (cgwb) recently estimated that 58 per cent of the total available groundwater is exploited as compared to 37 per cent in 1998. NSAR National scheme for artificial recharge : It's done …

Aral sea: experience and lessons learned

This report gives an overview of major environmental and socio-economic challenges that the Aral Sea region is facing, threats to the sustainable management of lake basin, major measures supported by the governments and international donor organizations aimed to address these critical environmental problems, and lessons learned from the environmental cooperation …

Groundwater in Karnataka

This book gives a brief outline of the general principles governing the occurrence of groundwater in a predominantly hard-rock terrain of Karnataka and indicates the extent of this resource. It is intended to serve as an introduction to groundwater hydrology of the State and be of assistance to all those …

Conceptualization of project

Inception of Omkareshwar Project dates back to year 1955, when CWPC prepared a report on hydroelectric potential of entire Narmada river and the project has been mentioned as "Barwaha". It was also seconded in Khosla Committee report in 1965.

World commission on dams (WCD) recommendation on gaining public acceptance (GPA) for large dams on international rivers...

The construction of Tipaimukh dam by India on the international Barak river has raises a number of questions in relation to successful implementation of World Commission on Dams (WCD) recommendation on Gaining Public Acceptance (GPA) for large dams. The government of India had never officially informed the lower riparian state …

Identification of sea-water ingress using strontium and boron in Krishna Delta, India

The distribution trends of trace elements over North and South Krishna delta were examined in relation to fresh-, brackish- and saline-water zonations. Strontium and boron have shown significant variations in fresh-, brackish- and saline-water environment. Strontium has shown a variation from 23 to 1500 mg/l in freshwater, 1650 to 2760 …

Why do Gangetic rivers aggrade or degrade?

The rivers draining the Gangetic plains exhibit remarkable geomorphic diversity, and this has consequently characterized the rivers to be dominantly aggradational in the Eastern Gangetic Plains (EGP) and degradational in the Western Gangetic Plains. We suggest that steam power and sediment supply are the two main fluvial parameters which govern …

Climate change impacts on water resources in India

Water is important for economic development, and many parts of India already face issues of water scarcity. This study predicts that intensity of rainfall will increase under climate change. Issues such as water scarcity may also become more prevalent. The marked rise in precipitation intensity and variability in extremes will …

Atmospheric brown clouds: Impacts on South Asian climate and hydrological cycle

South Asian emissions of fossil fuel SO2 and black carbon increased 6-fold since 1930, resulting in large atmospheric concentrations of black carbon and other aerosols. This period also witnessed strong negative trends of surface solar radiation, surface evaporation, and summer monsoon rainfall. These changes over India were accompanied by an …

Atmospheric brown clouds: Impacts on South Asian climate and hydrological cycle

South Asian emissions of fossil fuel SO2 and black carbon increased 6-fold since 1930, resulting in large atmospheric concentrations of black carbon and other aerosols. This period also witnessed strong negative trends of surface solar radiation, surface evaporation, and summer monsoon rainfall. These changes over India were accompanied by an …

Hydrological impact study of Tipaimukh dam of India on Bangladesh

The main objective of this study can be asserted as to assess the probable impacts, which are likely to be happened due to the operation of proposed Tipaimukh Hydro Electric Dam (Multipurpose) Project of India by storing, regulating, withdrawal or diversion of the Barak River flow on the northeast region …

Can payments for environmental services help reduce poverty? An exploration of the issues and the evidence to date from Latin America

This paper examines the main ways in which Payments for Environmental Services (PES) might affect poverty. PES may reduce poverty mainly by making payments to poor natural resource managers in upper watersheds. The extent of the impact depends on how many PES participants are in fact poor, on the poor’s …

Impact of soil and water conservation measures on hydrology of micro watersheds in Madhya Pradesh

Soil and water conservation measures are meant to reduce soil erosion and utilize rainwater. The measures include construction of contour bunds, contour trenches, graded terraces, check dams, dugout ponds, open wells, and similar other works. Some of the works done by the agencies of the Madhya Pradesh Govt. are analyzed …

Runoff variation due to landuse change in small watersheds of Western Ghats

Western Ghats form the catchment of all the 44 rivers that sustain the agroeconomy of Kerala. A study was conducted to assess the effect of land use on runoff from small watersheds of Western Ghats. Three small mono-culture watersheds, planted with cashew, coffee, tea and one small watershed with dense …

Hydrology and sediment loading of Hokersar wetland sanctuary in the Kashmir Himalaya, India

Hydrological characteristics and sedimentation loading in Hokersar wetland of Kashmir Himalaya was monitored from November 2000 to october 2001. The compound water budget showed a substantial (91 percent) input from various surface inflows and just 9 per cent through precipitation. Major water discharge (67 per cent) occurs through surface outlets, …

Dams in the north east will also ruin livelihoods

After neglecting the north-east for years, Delhi now feels the need to initiate "developmental' activities in the region. There is good reason. Indo-Chinese ties are improving. Moreover, a sub-regional economic grouping

Evaluation of geomorphic control on flood hazard through Geomorphic Instantaneous Unit Hydrograph

Flood hazard in a basin depends upon the hydrological response of the upstream basin area. The upstream basin area may produce different amounts of run-off for a given rainfall based on its hydrologic response. The present communication shows the importance of drainage network characteristics in understanding the hydrologic response of …

Geomorphological manifestations of the flood hazard: A remote sensing based approach

Flood hazard is one of the most severe problems in the Himalayan river basins. Although floods are essentially hydrological phenomenon, the uneven distribution of floods in the river basin highlights the control of geomorphological and geological factors. A proper understanding of these factors is critical for a successful flood management …

The Northeast`s power burden

on august 30, while inaugurating a hydropower project at Omkareswar in Madhya Pradesh, Prime Minister (pm) Atal Bihari Vajpayee declared that every village in the country would be electrified by 2007 and every house illuminated by 2012. The announcement

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