The Cryosphere Discuss., https://doi.org/10.5194/tc-2018-161 Manuscript under review for journal The Cryosphere Discussion started: 4 October 2018 c Author(s) 2018. CC BY 4.0 License. Stable water isotopes and accumulation rates in the Union Glacier region, West Antarctica over the last 35 years Kirstin Hoffmann1, 2, Francisco Fernandoy3, Hanno Meyer2, Elizabeth R. Thomas4, Marcelo Aliaga3, Dieter Tetzner5, Johannes Freitag6, Thomas Opel7,2, Jorge Arigony–Neto8, Christian Florian Göbel8, 5 Ricardo Jaña9, Delia Rodríguez Oroz10, Rebecca Tuckwell4, Emily Ludlow4, Joseph R. McConnell11, Christoph Schneider1 1Department of Geography, Humboldt University Berlin, Unter den Linden 6, Berlin, 10099, Germany 2Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, Potsdam, 14473, Germany 10 3Facultad de Ingeniería, Universidad Nacional Andrés Bello, Viña del Mar, 2531015, Chile 4Ice Dynamics and Paleoclimate, British Antarctic Survey, High Cross, Cambridge, CB3 0ET, United Kingdom 5Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, United Kingdom 6Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, Bremerhaven, 27568, Germany 15 7Department of Geography, Permafrost Laboratory, University of Sussex, Falmer, Brighton, BN1 9QJ, United Kingdom 8Instituto de Oceanografia, Universidade Federal do Rio Grande, Av. Itália, km 8, CEP 96201900, Rio Grande, RS, Brazil 9Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile 10Facultad de Ingeniería, Universidad del Desarrollo, Avenida Plaza 680, Santiago, Chile 11Division of Hydrologic Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA 20 Correspondence to: Kirstin Hoffmann (
[email protected]) Abstract West Antarctica is well-known as a region that is highly susceptible to atmospheric and oceanic warming.