Saturday, November 17, 2018
In October 2018, after over a decade of effort, a Drought Atlas for Latin America and Caribbean was released by UNESCO-IHP and the Water Center for Arid and Semi-Arid Zones in Latin America and the Caribbean (CAZALAC). The Atlas uses Regional Frequency Analysis (RFA), based on a statistical method called L-moments, to assist drought planners and decision-makers in both public and private sectors.
During an African regional workshop on “Climate Change Risk, Vulnerability Assessment and Early Warning for Africa”, held on 13-16 June 2017 at the AGRHYMET Centre in Niamey, Niger, the need had been... Read More
Monday, October 29, 2018
UNESCO and the Water Center for Arid and Semi-Arid Zones in Latin America and the Caribbean (CAZALAC) have released the Atlas de Sequías de América Latina y el Caribe, or Drought Atlas for Latin America and the Caribbean. The report is available, in Spanish, at http://unesdoc.unesco.org/images/0026/002658/265894s.pdf.
The publication is designed to answer questions that a drought planner or manager might ask, such as, “With what frequency, or every how many years, would one expect to find oneself in a severe meteorological drought, such a one characterized by an annual precipitation less tha... Read More
Thursday, October 11, 2018
The participation of the general public in the collection and interpretation of information for research and decision-making is often referred to as citizen science. While citizen science itself has existed since the beginning of scientific practice, advances in technology detection, data processing and visualization, and communication of ideas and results are creating a wide range of new opportunities for public participation in scientific research.
The democratization of science and technology represents a great opportunity to empower communities to address issues of local interest and to e... Read More
Saturday, September 29, 2018
One of the techniques for drylands water management identified in the earliest years of the G-WADI network was for the collection and management of flood- or rainwaters to increase water availability for domestic, agricultural or ecosystem use. This approach, called “water harvesting”, has been a traditional means of storing water in the Indian Subcontinent, the Middle East, North and East Africa, and the Americas for millennia. G-WADI Workshops on the topic have been held on three continents, beginning in 2005.
Most recently, the Regional Centre for Capacity Development and Research in Wate... Read More
Friday, August 10, 2018
Professor Sorooshian assisting participants with downloading real-time precipitation data for their countires. Photo credit: ICIWaRM
In arid East Africa, water is an increasingly scarce commodity. Governments in the region need better tools to manage this water, beginning with accurate estimates of rainfall in both real time and historically. The University of California, Irvine’s Center for Hydrometeorology & Remote Sensing (CHRS) has created satellite precipitation data and information systems that are useful for both purposes. G-WADI and its technical secretariat, ICIWaRM, have suppor... Read More