Samantha Walley¹, Sandip Pal², Joel F Campbell³, Emily Bell⁴, Brad Weir⁵, Sha Feng⁶, Jeremy Todd Dobler⁷, Wayne H. Erxleben⁸, Tai-Fang (Alice) Fan⁹, Bing Lin³, Michael D Obland³, Chris O'Dell¹⁰, Kenneth J Davis¹¹ and Doug McGregor¹², (1)Texas Tech University, Lubbock, TX, United States, (2)Texas Tech University, Geosciences, Lubbock, United States, (3)NASA Langley Research Center, Hampton, VA, United States, (4)Colorado State University, Fort Colins, CO, United States, (5)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (6)The Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States, (7)Spectral Sensor Solutions LLC, Environmental Sensing, Fort Wayne, IN, United States, (8)Organization Not Listed, Washington, DC, United States, (9)Science Systems and Applications, Inc. Hampton, Hampton, VA, United States, (10)Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States, (11)The Pennsylvania State University, University Park, PA, United States, (12)Spectral Sensor Solutions LLC, Fort Wayne, IN, United States

Nikolay Balashov¹, Lesley E Ott², Brad Weir³, Kenneth J Davis⁴, Anne M Thompson², Ryan M Stauffer⁵ and Natasha Miles⁶, (1)Universities Space Research Association/NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)Universities Space Research Association/NASA Goddard Space Flight Center, Columbia, MD, United States, (4)The Pennsylvania State University, University Park, PA, United States, (5)Earth System Science Interdisciplinary Center/NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States

Sha Feng¹, Thomas Lauvaux², Christopher A Williams³, Yu Zhou⁴, Ian T Baker⁵, Kenneth J Davis⁶, Zachary Barkley⁶, Klaus Keller⁷, David Baker⁸, Andrew E Schuh⁹, Andrew R Jacobson¹⁰, Junjie Liu¹¹ and Sourish Basu¹², (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)Pennsylvania State University Main Campus, Department of Meteorology and Atmospheric Science, University Park, United States, (3)Clark University, Graduate School of Geography, Worcester, MA, United States, (4)Cornell University, Ithaca, NY, United States, (5)Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States, (6)The Pennsylvania State University, University Park, PA, United States, (7)The Pennsylvania State University, Department of Geosciences, University Park, PA, United States, (8)Colorado State University, Fort Collins, CO, United States, (9)Colorado State University, CIRA, Fort Collins, CO, United States, (10)NOAA Boulder, Boulder, CO, United States, (11)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (12)NOAA, ESRL/GMD, Boulder, CO, United States

Yang Li¹, Joshua Simon Benmergui¹, Jonathan E Franklin¹, Apisada Chulakadabba², Maryann Sargent¹, Lucy Hutyra³, Conor Gately^4,5, Jia Chen⁶, Steven C Wofsy² and Taylor Jones⁷, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, United States, (3)Boston University, Earth & Environment, Boston, MA, United States, (4)Boston University, Boston, MA, United States, (5)Metropolitan Area Planning Council, Boston, MA, United States, (6)Technical University of Munich, Munich, Germany, (7)Boston University, Boston, United States

Kristian Daniel Daniel Hajny¹, Thilina Jayarathne¹, Jay Mendoza Tomlin¹, Joseph Robert Pitt², Cody R Floerchinger³, Israel Lopez-Coto⁴, Robert Kaeser⁵, Brian H Stirm⁵, Conor Gately⁶, Lucy Hutyra⁷, Maryann R Sargent⁸, Kevin R Gurney⁹, Geoffrey S Roest⁹, Alex J Turner¹⁰, Paul Shepson² and Steven C Wofsy⁸, (1)Purdue University, Department of Chemistry, West Lafayette, IN, United States, (2)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (3)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (4)National Institute of Standards and Technology Gaithersburg, Gaithersburg, MD, United States, (5)Purdue University, School of Aviation and Transportation Technology, West Lafayette, IN, United States, (6)Harvard University, Boston, MA, United States, (7)Boston University, Earth & Environment, Boston, MA, United States, (8)Harvard University, Cambridge, MA, United States, (9)Northern Arizona University, School of Informatics, Computing, and Cyber Systems, Flagstaff, AZ, United States, (10)University of Washington Seattle Campus, Seattle, United States

Joseph Robert Pitt¹, Israel Lopez-Coto², Kristian Daniel Daniel Hajny³, Jay Mendoza Tomlin³, Robert Kaeser⁴, Thilina Jayarathne³, Brian H Stirm⁴, Cody R Floerchinger⁵, Christopher Loughner⁶, Roisin Commane⁷, Conor Gately⁸, Lucy Hutyra⁹, Kevin R Gurney¹⁰, Geoffrey S Roest¹⁰, Jianming Liang¹¹, Anna Karion², James R Whetstone² and Paul Shepson^1,3, (1)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (2)National Institute of Standards and Technology Gaithersburg, Gaithersburg, MD, United States, (3)Purdue University, Department of Chemistry, West Lafayette, IN, United States, (4)Purdue University, School of Aviation and Transportation Technology, West Lafayette, IN, United States, (5)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (6)NOAA Air Resources Laboratory, College Park, MD, United States, (7)Columbia University in the City of New York, New York, NY, United States, (8)Metropolitan Area Planning Council, Boston, MA, United States, (9)Boston University, Earth & Environment, Boston, MA, United States, (10)Northern Arizona University, School of Informatics, Computing, and Cyber Systems, Flagstaff, AZ, United States, (11)Environmental Systems Research Institute, Redlands, CA, United States

Jianping Mao, University of Maryland College Park, College Park, MD, United States, James B. Abshire, NASA Goddard Space Flight Ctr, Greenbelt, MD, United States, Stephan R Kawa, NASA Goddard SFC, Greenbelt, MD, United States, Haris Riris, NASA GSFC, Greenbelt, MD, United States, Xiaoli Sun, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Niels Andela, Cardiff University, School of Earth and Ocean Sciences, Cardiff, United Kingdom

Liz Cunningham¹, Debra Wunch¹, Joshua Laughner², Geoffrey C Toon³ and Stephen A Montzka⁴, (1)University of Toronto, Department of Physics, Toronto, ON, Canada, (2)California Institute of Technology, Pasadena, CA, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)NOAA/ESRL Global Monitoring Division, Boulder, CO, United States

Felix Spielmann, Florian Kitz, Herbert Wachter and Georg Wohlfahrt, University of Innsbruck, Innsbruck, Austria

Jamie Harrison, Columbia University of New York City, New York, NY, United States, Charlotte Kwong, Columbia University, Palisades, NY, United States, Daniel Obrist, University of Massachusetts Lowell, Lowell, MA, United States, J William Munger, Harvard University, Cambridge, MA, United States, Max B Berkelhammer, University of Illinois at Chicago, Chicago, IL, United States and Roisin Commane, Columbia University in the City of New York, New York, NY, United States

Dylan Gaeta¹, Scot M Miller¹, Isaac Vimont² and Benjamin R Miller³, (1)Johns Hopkins University, Environmental Health and Engineering, Baltimore, MD, United States, (2)Univeristy of Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)NOAA/ESRL Global Monitoring Division, Boulder, CO, United States

Luke Western¹, Sunyoung Park², Takuya Saito³, Alison Redington⁴, Stephan Henne⁵, Xuekun Fang⁶, Ronald G Prinn⁶, Alistair Manning⁷, Stephen A Montzka⁸, Paul J. Fraser⁹, Anita Ganesan¹⁰, Christina M Harth¹¹, Jooil Kim¹², Paul B Krummel¹³, Qing Liang¹⁴, Jens Muhle¹², Simon O'Doherty¹, Hyeri Park², Mi-Kyung Park¹⁵, Stefan Reimann⁵, Peter Salameh¹², Ray F Weiss¹⁶ and Matthew L Rigby¹⁷, (1)University of Bristol, School of Chemistry, Bristol, United Kingdom, (2)Kyungpook National University, Daegu, South Korea, (3)Natl Inst Environal Study, Tsukuba, Japan, (4)UK Meteorological Office, Exeter, United Kingdom, (5)Empa, Duebendorf, Switzerland, (6)MIT, Cambridge, MA, United States, (7)UK Meteorological Office, Climate Research, Exeter, United Kingdom, (8)NOAA/ESRL Global Monitoring Division, Boulder, CO, United States, (9)CSIRO, Oceans and Atmosphere, Aspendale, Victoria, Australia, (10)University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, (11)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (12)Scripps Institution of Oceanography, La Jolla, CA, United States, (13)CSIRO, Aspendale, Australia, (14)NASA GSFC, Atmospheric Chemistry and Dynamic Laboratory, Code 614, Greenbelt, MD, United States, (15)Kyungpook National University, Kyungpook Institute of Oceanography, Daegu, Korea, Republic of (South), (16)Univ California San Diego, La Jolla, CA, United States, (17)University of Bristol, Bristol, United Kingdom

Ethan D. Kyzivat¹, Laurence C Smith^2,3, Tamlin Pavelsky⁴, David E Butman⁵, Colin J Gleason⁶, Fenix Garcia Tigreros⁷, Chang Huang^8,9, Chao Wang¹⁰, Theodore Langhorst⁴, Jessica V. Fayne¹¹, Catherine Kuhn¹², Merritt Harlan¹³, Yuta Ishitsuka¹⁴, Dongmei Feng¹⁵, Rob Spencer¹⁶, Kimberly Wickland¹⁷, Mark Dornblaser¹⁸ and Robert G Striegl¹⁹, (1)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, (2)Brown University, Providence, RI, United States, (3)University of California Los Angeles, Geography, Los Angeles, CA, United States, (4)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (5)University of Washington, School of Environmental and Forest Sciences, Seattle, WA, United States, (6)University of Massachusetts, Amherst, MA, United States, (7)University of Washington, Seattle, WA, United States, (8)Northwest University, Xi'an, China, (9)Brown University, Providence, United States, (10)University of North Carolina at Chapel Hill, Chapel Hill, United States, (11)University of California Los Angeles, Department of Geography, Los Angeles, CA, United States, (12)University of Washington Seattle Campus, School of Environmental and Forestry Sciences, Seattle, WA, United States, (13)UMass-Amherst, Amherst, United States, (14)University of Massachusetts Amherst, Civil & Environmental Engineering, Amherst, MA, United States, (15)University of Massachusetts Amherst, Amherst, United States, (16)Department of Earth, Ocean and Atmospheric Sciences, Florida State University, Tallahassee, FL, United States, (17)US Geological Survey, Water Resources Mission Area, Boulder, CO, United States, (18)US Geological Survey, Boulder, CO, United States, (19)USGS WRD, Boulder, CO, United States

Rory Alistair Barton-Grimley¹, Amin R Nehrir¹, Zachary Barkley², Susan A Kooi³ and James E Collins Jr³, (1)NASA Langley Research Center, Hampton, VA, United States, (2)The Pennsylvania State University, University Park, PA, United States, (3)SSAI, Hampton, VA, United States

Daniel Hoare¹, Roderic L Jones², Shiwei Fan², Neil Richard Peter Harris³, Valerio Ferracci⁴, David Carruthers⁵, Amy Stidworthy⁵, Ella Forsyth⁵ and Matthew L Rigby⁶, (1)University of Bristol, Bristol, BS8, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)Cranfield University, Cranfield, MK43, United Kingdom, (4)Cranfield University, Cranfield, United Kingdom, (5)Cambridge Environmental Research Consultants, Cambridge, United Kingdom, (6)University of Bristol, Bristol, United Kingdom

Martijn Pallandt¹, Abhishek Chatterjee², Lesley E Ott³, Benjamin Poulter⁴, Christian Rödenbeck¹, Brad Weir⁵, Zhen Zhang⁶ and Mathias Goeckede¹, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)USRA, Greenbelt, MD, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)NASA GSFC, Biospheric Science, Greenbelt, MD, United States, (5)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (6)University of Maryland College Park, College Park, MD, United States