Anna Hogg¹, Noel Gourmelen², Maria Jose Escorihuela³, Matt Trevers⁴, Antony John Payne⁴, John Mortensen⁵, Adriano Lemos⁶ and Thomas Slater⁷, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)Univerisy of Edinburgh, School of Geosciences, Edinburgh, United Kingdom, (3)Isardsat, Barcelona, Spain, (4)University of Bristol, Bristol, BS8, United Kingdom, (5)Greenland Climate Res. Centre, Nuuk, Greenland, (6)University of Leeds, Leeds, United Kingdom, (7)Minneapolis, MN, United States