1. NASA Marshall Space Flight Center, Huntsville, Alabama
2. Météorage, Pau, France
3. Department of Electrical Engineering, New Mexico Institute of Mining and Technology, Socorro, New Mexico
4. School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, Arizona
5. Polytechnic University of Catalonia, Barcelona, Spain
6. Laboratoire d’Aérologie, University of Toulouse/CNRS, Toulouse, France
7. NOAA/National Severe Storms Laboratory, Norman, Oklahoma
8. Vaisala, Inc., Tucson, Arizona
9. Facultad de Matemática, Astronomía, Física y Computación, Universidad Nacional de Córdoba, Córdoba, and Instituto de Física Enrique Gaviola, Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
10. Laboratory of Lightning Physics and Protection Engineering, Chinese Academy of Meteorological Sciences, Beijing, China
11. NOAA/Storm Prediction Center, Norman, Oklahoma
12. Bureau of Meteorology, and School of Mathematical and Geospatial Sciences, Royal Melbourne Institute of Technology University, Melbourne, Victoria, Australia
13. Commission for Climatology, World Meteorological Organization, Asheville, North Carolina
14. Centre for Climate Change, Department of Geography, University Rovira i Virgili, Tarragona, Spain, and Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
15. Climate Studies Service, Direction de la Météorologie Nationale, Casablanca, Morocco