Volker Klemann, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Meike Bagge, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Geodesy, Potsdam, Germany and Zdenek Martinec, Dublin Institute for Advanced Studies, School of Cosmic Physics, Dublin, Ireland

Kate Selway¹, Clinton P Conrad², Florence Ramirez^3,4, Nanna B. Karlsson⁵, Maaike Weerdesteijn⁴ and Björn Heyn⁴, (1)Macquarie University, Sydney, NSW, Australia, (2)University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway, (3)Macquarie University, Sydney, Australia, (4)University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway, (5)Geological Survey of Denmark and Greenland, København K, Denmark

Maryam Yousefi¹, Glenn A. Milne¹ and Konstantin Latychev², (1)University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States

Maria Beatrice Magnani¹, Emi Ito², Douglas Wiens³, Andrew D Wickert⁴, Erik Roman Ivins⁵, Anastasia Fedotova¹, Maximillian S. Van Wyk de Vries⁶, Hannah F Mark³, Shanti Bhattacharya Penprase⁷ and GUANACO Team, (1)Southern Methodist University, Dallas, TX, United States, (2)University of Minnesota Department of Earth & Environmental Sciences and Limnological Research Center, Minneapolis, MN, United States, (3)Washington University in St Louis, St. Louis, MO, United States, (4)University of Minnesota, Department of Earth & Environmental Sciences and Saint Anthony Falls Laboratory, Minneapolis, MN, United States, (5)JPL/Caltech, Pasadena, CA, United States, (6)University of Minnesota, Department of Earth and Environmental Sciences and Limnological Research Center, Minneapolis, MN, United States, (7)University of Minnesota Twin Cities, Minneapolis, MN, United States

Scott Steven Braddock¹, Meghan Spoth¹, Brenda L Hall¹, Joanne Johnson² and Seth W Campbell¹, (1)University of Maine, School of Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States, (2)NERC British Antarctic Survey, Cambridge, United Kingdom

Jasmine S S Hansen, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States, William Joseph Durkin IV, Ohio State University, Byrd Polar and Climate Research Center, Columbus, NY, United States, Michael J Willis, University of Colorado Boulder, CIRES and Department of Geological Sciences, Boulder, CO, United States, Terry J Wilson, Ohio State University, Columbus, OH, United States and Ryan A Hardy, NRC Research Associateship Program, Silver Spring, MD, United States

Jeannette Xiu Wen Wan¹, Natalya A Gomez¹, Konstantin Latychev² and Holly Kyeore Han¹, (1)McGill University, Montreal, QC, Canada, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States