HEPEX is a global community of researchers and practitioners contributing and working on specific topics related to hydrological forecasting and hydrometeorological ensemble prediction. HEPEX's goal is to advance the science and practice of hydrological ensemble prediction and its use in impact- and risk-based decision making. It was established in 2004 and has over 600 members from all over the world. It is the longest unfunded/volunteer effort in the history of hydrometeorological forecasting.
GFP is a volunteer-based community of scientists, operational agencies and flood risk managers from various countries and institutions, including international organizations, the private sector, national authorities, universities, governmental research agencies and non-profit organizations. It focuses on developing tools for global flood forecasting, monitoring and impact assessment to strengthen flood preparedness and response globally. Launched in 2014, it brings together more than 400 people from 6 continents.
ECMWF is the European Centre for Medium-Range Weather Forecasts.
ECMWF is both a research institute and a 24/7 operational service, producing global numerical weather predictions and other data for its Member and Co-operating States and the broader community. The Centre has one of the largest supercomputer facilities and meteorological data archives in the world. Other strategic activities include delivering advanced training and assisting the WMO in implementing its programmes.
ECMWF operates two services from the EU’s Copernicus Earth observation programme, the Copernicus Atmosphere Monitoring Service (CAMS) and the Copernicus Climate Change Service (C3S) and also contributes to the Copernicus Emergency Management Service (CEMS).