Resources - G-WADI

Web-based Tools

Real Time Precipitation Estimates
G-WADI has teamed up with the University of California-Irvine Center for Hydrometeorology and Remote Sensing to make remotely senses data on key hydrologic parameters, such as precipitation, available at high resolution and in near real-time via the Internet. The aim is to build global capacity and increase equitable access to information by extending the benefits of space and weather agencies’ vast technological resources. The website contains applications and tools for water resource managers that can improve forecasting, drought monitoring and flood warning.

Hydrologic Monitoring & Forecasting
A drought monitor using available satellite remote sensing and in-situ information, a hydrologic modeling platform and accompanying web-based user interface have been developed, in collaboration with UNESCO, for operational and research use over Africa. It is based out of Princeton University.

Frequency Analyses
Extreme hydrologic events such as droughts and floods cause significant damage in both developing and developed countries. Frequency analyses are conducted to fit data to a probability distribution in order to determine the likelihood of events of specific magnitudes and durations. The fitted distributions are used to inform policy, planning, and design in water resources management.

Chemical and Isotopic Tracers
The G-WADI network aims to facilitate the application of both conventional chemical tools and state-of-the-art isotopic tracers in arid and semi-arid regions to further local applications in water management, without need for specialist laboratories. To this end, G-WADI seeks to define the tracers and isotope material required by a wide range of users, and to provide access to existing materials, resources, case studies, and IAEA initiatives.


G-WADI Brochure [PDF format - 1.64 MB]
2012 edition
Improved scientific understanding, cooperation and data sharing provide ways to better manage water and support conflict resolution. UNESCO’s Global Network on Water and Development Information for Arid Lands (G-WADI) programme was established in 2004 to strengthen the global capacity for management of water resources in arid and semi-arid regions, one of the priorities of the International Hydrology Programme’s (IHP) eight phase “Water Security: Responses to Local Regional and Global Challenges (2014-2021)”.

Groundwater Resources of the World and their Use [PDF format - 10 MB]
2004 edition
This monograph represents a major undertaking by hydrologists and hydrogeologists around the world. It represents a multicultural approach to groundwater resources and their use and aims to contribute to a better understanding of the crucial role played by groundwater resources in support of both the ecosystems and mankind.

G-WADI––the first decade [PDF format - 0.5 MB]
2013 edition
The G-WADI objectives and achievements of the past 10 years are reviewed in this document. A number of key initiatives have been implemented - the formation of five regional networks, the creation of a central G-WADI website, promotion of near-real-time rainfall distribution software enhanced by the inclusion of satellite based precipitation estimations, as well as workshop and web-based activities on chemical and isotopic tracers and on rain water harvesting.