Luana S Basso¹, Luciana V Gatti¹, Luciano Marani¹, Henrique L. G. Cassol Sr.², Graciela Tejada¹, Sergio Machado Correa³, John B Miller⁴, Manuel Gloor⁵, Lucas G. Domingues^1,6, Egidio Arai⁷, Alber Sánchez², Luiz EOC Aragão⁸, Caio Silvestre de Carvalho Correia^1,9, Raiane A. L. Neves¹ and Stephane P. Crispim¹, (1)INPE National Institute for Space Research, CCST, Sao Jose dos Campos, Brazil, (2)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, (3)UERJ Rio de Janeiro State University, Resende, Brazil, (4)NOAA, Global Monitoring Laboratory, Boulder, CO, United States, (5)University of Leeds, School of Geography, Leeds, United Kingdom, (6)GNS Science, Lower Hutt, New Zealand, (7)INPE National Institute for Space Research, OBT, Sao Jose dos Campos, Brazil, (8)INPE National Institute for Space Research, Remote Sensing Division, Sao Jose dos Campos, Brazil, (9)IPEN Nuclear Energy Research Institute, Sao Paulo, Brazil

Peter Munroe Douglas¹, Dawson Phan², Emerald Stratigopoulos² and Jenny Park³, (1)McGill University, Montreal, QC, Canada, (2)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (3)McGill University, Chemistry, Montreal, QC, Canada

Kyle B Delwiche¹, Sara Knox², Avni Malhotra³, Gavin McNicol⁴, Etienne Fluet-chouinard⁴, Benjamin Poulter⁵, Lisamarie Windham-Myers⁶ and Robert B Jackson^1,7, (1)Stanford University, Stanford, CA, United States, (2)University of British Columbia, Geography, Vancouver, AB, Canada, (3)Stanford University, Stanford, United States, (4)Stanford University, Earth System Science, Stanford, CA, United States, (5)NASA GSFC, Biospheric Science, Greenbelt, MD, United States, (6)U.S. Geological Survey, Water Mission Area, Menlo Park, CA, United States, (7)Woods Institute for the Environment and Precourt Institute for Energy, Stanford, CA, United States

Semra Bakkaloglu¹, David Lowry², Rebecca Fisher², James L France², Dominik Brunner³, Huilin Chen⁴ and Euan G Nisbet², (1)Royal Holloway University of London, Egham, TW20, United Kingdom, (2)Royal Holloway, University of London, Egham, United Kingdom, (3)Empa, Duebendorf, Switzerland, (4)University of Groningen, Centre for Isotope Research, Groningen, Netherlands

Hinrich Schaefer¹, Keith R Lassey², Anthony Maurice Bromley¹, Jocelyn C Turnbull³ and Andrew Milford Smith⁴, (1)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (2)NIWA, Wellington, New Zealand, (3)GNS Science, Lower Hutt, New Zealand, (4)Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia

Megan McCabe, University of Wyoming, Department of Atmospheric Sciences, Laramie, WY, United States, Ilana B Pollack, Colorado State University, Atmospheric Science Department, Ft. Collins, CO, United States, Emily Fischer, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States and Dana Caulton, University of Wyoming, Laramie, WY, United States

Xin Lan^1,2, Sourish Basu^3,4, Stefan Schwietzke⁵, Lori Bruhwiler², Edward J Dlugokencky², Sylvia Englund Michel⁶, Owen Sherwood⁷, Pieter P Tans², Kirk W Thoning², Giuseppe Etiope⁸, Qianlai Zhuang⁹, Licheng LIU⁹, Youmi Oh⁹, John B Miller², Gabrielle Petron^1,2, Bruce H Vaughn⁶ and Monica Crippa¹⁰, (1)University of Colorado at Boulder, CIRES, Boulder, CO, United States, (2)NOAA, Global Monitoring Laboratory, Boulder, CO, United States, (3)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (4)University of Maryland College Park, College Park, MD, United States, (5)Environmental Defense Fund, Berlin, Germany, (6)University of Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States, (7)Dalhousie University, Department of Earth and Environmental Sciences, Halifax, NS, Canada, (8)INGV National Institute of Geophysics and Volcanology, Rome, Italy, (9)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (10)European Commission Joint Research Centre, Directorate for Energy, Transport and Climate, Ispra, Italy

Claude-Michel Nzotungicimpaye¹, Kirsten Zickfeld¹ and Alexander J. MacIsaac², (1)Simon Fraser University, Geography, Burnaby, BC, Canada, (2)Simon Fraser University, Burnaby, BC, Canada