Surface Water

This evaluation study report by the Programme Evaluation Organisation, Planning Commission attempts to document the major achievements in rural water services under Rajiv Gandhi National Drinking Water Mission. It does so by assessing the extent of coverage and access to improved services in the rural areas.

This article published in the Indian Journal of Public Health highlights the importance of sanitation as hygienic means of dealing with health of populations and presents the history and the definition of sanitation and highlights t

To provide the background hydrological information for the assessment of environmental flow requirements at four selected ‘Environmental Flow’ sites, a hydrological model was set up to simulate the catchment in the present state (with water regulation  infrastructure) and to generate the natural flows (without water regulation infrastructure).

This paper published in the Indian Journal of Traditional Knowledge makes an attempt to record the fisheries related indigenous technological knowledge in terms of fishing crafts and gears used in river Krishna.

Guest post by: Chicu

This presentation by Sekhar Raghavan, Director, Rain Centre, Chennai, India highlights the experiences and the challenges faced by Rain Centre in introducing ecological sanitation in the coastal town of Kovalam near Chennai, Tamil Nadu, India along with Coastal and Rural development Trust (CRDT), a small non profit centre based in Kovalam .

The coastal town of Kovalam was selected as a case because of its peculiar situation with its location in a fast developing  peri-urban area in proximity to Chennai city characterised by good groundwater situation, adequate land and housing facilities, but with a glaring and urgent need and demand for toilets.

This paper in the Journal of Earth System Science deals with a study by National Institute of Oceanography (NIO), Goa to investigate the influence of monsoonal rainfall on hydrographic conditions in the Mandovi River of India. The study was undertaken at a location approximately 2 km upstream of the mouth of the estuary.

This paper in Journal of Earth System Science deals with paleochannel and paleohydrology of the Middle Siwalik (Pliocene) fluvial system in Northern India. In recent years, fluvial sedimentologists have carried out numerous studies to estimate quantitative hydrodynamics of ancient fluvial systems, particularly, their morphology and hydrology. The methods for reconstructing the morphology and hydrology employ either several groups of empirical relationships derived from modern fluvial environments or dynamic models of fluvial flow and sediment transports in alluvial reaches.

The report by Paul P Appasamy and Ruth Meinzen Dick deals with urbanization and intersectoral competition for water founded on the view that stereotypical images of “thirsty cities” that equate urban demand with “drinking water” or factories, and rural water supply with irrigation do not adequately portray the water uses in each area.

This paper in Current Science attempts to establish a missing stream link between the Markanda river and the Vedic Saraswati river in the plains of northern Haryana based on geoelectrical resistivity surveys. Resistivity surveys in the Gangetic Plains around Pehowa region in Haryana, have revealed different subsurface geological formations composed of fine, medium and coarse sand with gravel. Resistivity section between the lower part of the Markanda basin and the Saraswati river around Pehowa region indicates the presence of buried sand bodies connecting the two rivers.