*Alexander Smirnov^1,2, Brent N Holben², Stefan Kinne³, Michael Ondrusek⁴, Curt Jenner⁵, Georgiy Stenchikov⁶, Steve Groom⁷, Vladimir F Radionov⁸, Philippe Goloub⁹, Tymon Zielinski¹⁰, Giuseppe Zibordi¹¹, Anne M Thompson², Rachel T Pinker¹², Michael White¹³, Derek Sowers¹³, Robyn Schofield¹⁴, Ruhi Humphries¹⁵, Simon Belanger¹⁶, Anja Van Der Plas¹⁷, Santiago Gasso^12,2, Ilya Slutsker^1,2, David M Giles^1,2, Norman T O'Neill¹⁸, Thomas F Eck^19,2 (1.Science Systems and Applications, Inc., Lanham, MD, USA, 2.NASA Goddard Space Flight Center, Greenbelt, MD, USA, 3.Max Planck Institute for Meteorology, Hamburg, Germany, 4.NOAA Center for Satellite Applications and Research, College Park, MD, USA, 5.Centre for Whale Research, Fremantle, WA, Australia, 6.King Abdulla University of Science and Technology, Thuwal, Kingdom of Saudi Arabia, 7.Plymouth Marine Laboratory, Plymouth, UK, 8.Arctic and Antarctic Research Institute, Saint Petersburg, Russia, 9.Université des Sciences et Techniques de Lille, Villeneuve d’Ascq, France, 10.Institute of Oceanology, Sopot, Poland, 11.European Commission – Joint Research Center, Ispra, Italy, 12.University of Maryland, College Park, MD, USA, 13.NOAA Office of Ocean Exploration and Research, Durham, NH, USA, 14.University of Melbourne, VIC, Australia, 15.CSIRO, Aspendale, VIC, Australia, 16.Université du Québec à Rimouski, Rimouski, Québec, Canada, 17.Ministry of Fisheries & Marine Resources, Swakopmund, Namibia, 18.Université de Sherbrooke, Sherbrooke, Québec, Canada, 19.Universities Space Research Association, Columbia, MD, USA)