Water Supply and Scarcity

According to the United Nations, water scarcity is defined as the point at which the aggregate impact of all users impinges on the supply or quality of water. Water scarcity is a relative concept and can occur at any level of supply or demand. Scarcity may be socially-constructed or the consequence of altered supply patterns stemming from climate change. Resources available in this sub-theme include U.S. drought monitoring data, workshops for rural water supply systems, among other resources that support water supply and scarcity.

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Water Supply and Scarcity Resources

Predicting Water Availability in Irrigation Tank Cascade Systems: The Cascade Water Balance Model

Published: 
January 1, 2001
U.S. Agency for International Development
This report presents "Cascade", a water balance model that can predict tank water availability in the Thirappane tank cascade system in Anuradhapura, Sri Lanka. The model determines tank water availability on a daily basis for the purpose of improving productive use of the water...Read more
Regional focus: 
Sri LankaSouth East Asia

Estimating Productivity of Water At Different Spatial Scales Using Simulation Modeling

Published: 
January 1, 2001
U.S. Agency for International Development
Implementing real water saving measures in irrigated agriculture is only possible if all the components of the current water balance are clearly understood. Although measurement of all these components is infeasible on a spatial and temporal scale, hydrological simulation models can fill the gap...Read more
Regional focus: 
TurkeyEurope and Central Asia

Strategic Plan 2000-2005: Improving Water and Land Resources Management for Food, Livelihoods and Nature

Published: 
January 1, 2001
U.S. Agency for International Development
This report details the guide for planned research by IWMI. The work has evolved from a focus on irrigation management, to a focus on the analysis of water resources demand and supply for food production in a river basin context. Read more
Regional focus: 
Sub-Saharan Africa

Alternate Wet/Dry Irrigation in Rice Cultivation: A Practical Way to Save Water and Control Malaria and Japanese Encephalitis

Published: 
January 1, 2001
U.S. Agency for International Development
Due to increasing scarcity of freshwater resources that are available for irrigated agriculture, in the future it will be necessary to produce more food with less water. More irrigated land is devoted to rice than any other crop. One method to save water in irrigated rice cultivation is the...Read more
Regional focus: 
South East Asia

Basin-Level Use and Productivity of Water: Examples From South Asia

Published: 
January 1, 2001
U.S. Agency for International Development
Improving water productivity, especially by irrigated agriculture, is key to mitigating ongoing problems of water scarcity. This report discusses and illustrates concepts for improving water productivity within basins. Researchers applied a water accounting procedure to four sub-basins in South...Read more
Regional focus: 
South East Asia

Using Datasets From The Internet for Hydrological Modeling: An Example From The Kucuk Menderes Basin, Turkey

Published: 
January 1, 2000
U.S. Agency for International Development
Public domain datasets are increasingly available online and can be used as inputs for hydraulic models. This simplifies the modeling process and increases the ability to model bains anywhere in the world. Read more
Regional focus: 
TurkeyEurope and Central Asia

A Global Perspective on Water Scarcity/Poverty: Achievements and Challenges for Water Resource Management

Published: 
January 1, 2000
U.S. Agency for International Development
Poverty eradication through sustainable development can be regarded as the central goal of CGIAR, of most agricultural research and development institutions in the developing world, and of the national governments that support their research in regions including sub-Saharan Africa and Southeast AsiaRead more
Regional focus: 
South East Asia

From Bucket to Basin: Managing River Basins to Alleviate Water Deprivation

Published: 
January 1, 2000
U.S. Agency for International Development
Today there are no agreed upon concepts on water poverty alleviation that: define the nature of the problem for poor people; capture the multiple aspects and linkages of poverty and water deprivation in a comprehensive way; analyze the different processes in society that contribute to the problem...Read more
Regional focus: 
South East Asia

Supporting The Creation of a Watershed Authority in The Souss-Massa River Basin of Morocco

Published: 
June 1, 1999
U.S. Agency for International Development
The aim of this report is to develop an initial vision for new watershed planning and management of integrated water resources with the objectives of: conducting situational analysis of water resources in the basin, suggesting approaches for participatory planning and identifying areas in which...Read more
Regional focus: 
MoroccoMiddle East and North Africa

Coping with Intermittent Water Supply: Problems and Prospects -- Dehra Dun, Uttar Pradesh, India

Published: 
October 1, 1996
U.S. Agency for International Development
This report summarizes the methodology and results of a water use survey and presents a prefeasibility study of options for improving water quality. The study was based on a random sample of 1,100 households in Dehra Dun in Uttar Pradesh, India, for the purpose of estimating the real costs of an...Read more
Regional focus: 
IndiaSouth East Asia

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