• G-WADI Precipitation Data Downloads Double for Fifth Straight Year, Find Broad Use in Southwestern Africa

    Thursday, February 21, 2019
    Users of G-WADI linked PERSIANN precipitation data and information downloaded almost 19 terabytes of data in 2018. This continued a five-year trend of annual doubling of data downloaded that began in 2013. The data products and systems were designed by, and are served by, the University of California, Irvine's Center for Hydrometeorology and Remote Sensing. The majority of the data downloaded was from the real-time precipitation product PERSIANN-CCS. The “climate data record" product, PERSIANN-CDR and the original PERSIANN product constituted most of the rest of the data downloads. In additio... Read More
  • G-WADI Products featured in UNESCO Training Course on "Applying Satellite Remote Sensing for Water Resources Management in Africa"

    Participants in the training course working on their group project.
    Saturday, January 19, 2019
    On 12-19 Jan 2019, in Pietermaritzburg, South Africa, a week-long training course on "Applying Satellite Remote Sensing for Water Resources Management in Africa” was held. Hosted by the University of KwaZulu-Natal (UKZN), the course was organized under the auspices of UNESCO’s programme on Enhancing Climate Services for Improved Water Management, or CliMWaR. The ~40 participants came from Angola, Botswana, Egypt, eSwatini (Swaziland), Ethiopia, Lesotho, Malawi, Mauritius, Namibia, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Zambia and Zimbabwe. The training course was created to help Afric... Read More
  • Eighth Meeting of Asian G-WADI Network held Together with 2nd International Drought Initiative Expert Group Meeting

    Wednesday, January 2, 2019
    The 8th Asian G-WADI and 2nd International Drought Initiative (IDI) expert group meetings were held in Khorasan Razavi Province (Holy City of Mashhad), Iran on 10-12 December 2018. These events were hosted by Khorasan Razavi Regional Water Authority in close cooperation with the Regional Centre on Urban Water Management (RCUWM), under the auspices of UNESCO. The event received the support of UNESCO's International Hydrological Programme, UNESCO Field Offices in Tehran, Jakarta and New Delhi, the Ministry of Energy of I.R Iran, Iran Water Resources Management Company and the University of Ferdo... Read More
  • Inaugural African Drought Atlas Training Course Held

    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
  • Drought Atlas for Latin America and the Caribbean Released by UNESCO and CAZALAC

    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   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