1. German Research Centre for Geosciences GFZ Potsdam Germany
2. Cégep de Sherbrooke 475 rue du cégep Sherbrooke QC Canada
3. Area de Optica Universidade de Santiago de Compostela (USC) Compostela Spain
4. Regional Environmental Protection Agency of Veneto Via Ospedale Civile 24 Padova Italy
5. Lighting Laboratory National Technical University of Athens Athens Greece
6. Department of Physics and Astronomy University of Padova Padova Italy
7. INAF‐Osservatorio Astronomico di Padova Vicolo dell’Osservatorio 5 Padova Italy
8. School of Physics Trinity College DublinCollege Green Dublin Ireland
9. ISTIL ‐ Istituto di Scienza e Tecnologia dell’Inquinamento Luminoso Via Roma 13 Thiene Italy
10. The Adler Planetarium 1300 S. Lake Shore Dr Chicago IL USA
11. Leibniz Institute of Freshwater Ecology and Inland Fisheries Berlin Germany
12. ICA Slovak Academy of Sciences Bratislava Slovakia
13. FMPI Comenius University Bratislava Slovakia
14. Department of Physics Eszterházy Károly University Leányka út 6‐7 Eger Hungary
15. The Centre for Research in Geography and Geosciences (CentroGeo) Mexico city Mexico
16. The Department of Geography The Hebrew University of Jerusalem Mt Scopus Jerusalem Israel
17. The School of Earth and Environmental Sciences The University of Queensland St. Lucia Brisbane QLD Australia
18. Spatial Sciences Institute University of Southern California Los Angeles CA USA
19. Department of Atmospheric Science and Cooperative Institute for Research in the Atmosphere Colorado State University Fort Collins CO USA
20. Department of Physics The University of Hong Kong Pokfulam Hong Kong
21. Parc Astronòmic Montsec ‐ Ferrocarrils de la Generalitat de Catalunya Lleida Spain
22. Freie Universität Berlin Berlin Germany
23. Depto. Física de la Tierra y Astrofísica Instituto de Física de Partículas y del Cosmos (IPARCOS) Universidad Complutense Madrid Spain
24. Environment and Sustainability Institute University of Exeter Penryn UK
25. German Aerospace Center (DLR) Earth Observation Center (EOC) Weßling Germany
26. Science Systems and Applications, Inc. Lanham MD USA
27. Terrestrial Information Systems Laboratory NASA Goddard Space Flight Center Greenbelt MD USA
28. Université de Sherbrooke 2500 Boulevard de l’Université Sherbrooke QC Canada
29. Physics Department Carnegie Mellon University Pittsburgh PA USA
30. Department of Chemical and Biochemical Engineering College of Engineering Iwoa City IA USA
31. Earth System Science Interdisciplinary Center University of Maryland College Park College Park MD USA
32. Department of Atmospheric Sciences University of North Dakota Grand Forks ND USA