Supplement to: Vermassen, Flor; Andreasen, Nanna; Thibault, Nicolas; Seidenkrantz, Marit-Solveig; Jackson, Rebecca; Schmidt, Sabine; Kjær, Kurt Henrik; Andresen, Camilla S (2019): A reconstruction of warm-water inflow to Upernavik Isstrøm since 1925 CE and its relation to glacier retreat. Climate of the Past, 15(3), 1171-1186, https://doi.org/10.5194/cp-15-1171-2019