1. Climate Research Division, Environment and Climate Change Canada, Toronto M3H 5T4, Canada
2. Department of Physics, University of Toronto, Toronto M5S 1A7, Canada
3. Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht 3584 CC, The Netherlands
4. AGH, University of Kraków, Kraków 30-059, Poland
5. Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, U.K.
6. Centre for Isotope Research, Energy and Sustainability Research Institute, University of Groningen, Groningen 9747 AG, Netherlands
7. LSCE, CEA-CNRS-UVSQ, University Paris-Saclay, Gif-sur-Yvette 91191, France
8. ICTA, Autonomous University of Barcelona, Barcelona 08193, Spain
9. Eurecat, Centre Tecnològic de Catalunya, Barcelona 08290, Spain
10. INTE, Universitat Politècnica de Catalunya, Barcelona 08028, Spain
11. Environmental Sensing and Modelling, Technical University of Munich, Munich 80333, Germany
12. Netherlands Organisation for Applied Scientific Research─TNO, Utrecht 3584CB, The Netherlands
13. Geography and GIS, University of Northern Colorado, Greeley, Colorado 80639, United States
14. Faculty of Physics, University of Bucharest, Bucharest 050663, Romania
15. INCAS, National Institute for Aerospace Research “Elie Carafoli”, Bucharest 061126, Romania