A half-decade of field research on the Greenland firn aquifers - major advances and looming questions. 

Lora Koenig, National Snow and Ice Data Center, Boulder, CO, United States, Richard R Forster, University of Utah, School of Environment, Society, and Sustainability, Salt Lake City, UT, United States, Olivia Miller, U.S. Geological Survey, Utah Water Science Center, Salt Lake City, United States, Kip Kip Solomon, University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States, Clément Miège, University of Utah, Salt Lake City, United States, Nicholas C Schmerr, University of Maryland, Department of Geology, College Park, United States, Lynn Nicole Montgomery, University of Maryland, College Park, MD, United States and Anatoly Legchenko, LTHE Laboratoire d'étude des Transferts en Hydrologie et Environnement, Saint Martin d'Hères, France