1. Center for Global Change Science Massachusetts Institute of Technology Cambridge MA USA
2. School of Chemistry University of Bristol Bristol UK
3. School of Geographical Sciences University of Bristol Bristol UK
4. Met Office London UK
5. Scripps Institution of Oceanography University of California at San Diego San Diego CA USA
6. Climate Science Centre CSIRO Oceans and Atmosphere Victoria Aspendale Australia
7. Department of Oceanography College of Natural Science Kyungpook National University Daegu South Korea
8. Climate Research Division National Institute of Meteorological Sciences Seogwipo Korea
9. Meteorological Observation Center of China Meteorological Administration Beijing China
10. Laboratory for Air Pollution and Environmental Technology Empa, Swiss Federal Laboratories for Materials Science and Technology Dübendorf Switzerland
11. Department of Pure and Applied Sciences University of Urbino Urbino Italy
12. Institute of Atmospheric Sciences and Climate National Research Council Bologna Italy
13. Norwegian Institute for Air Research Kjeller Norway