Calving Flux Estimation from Tsunami Waves
Earth and Planetary Science Letters 515 (2019) 283–290 Contents lists available at ScienceDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl Calving flux estimation from tsunami waves ∗ Masahiro Minowa a,b, , Evgeny A. Podolskiy c,d, Guillaume Jouvet e, Yvo Weidmann e, Daiki Sakakibara b,c, Shun Tsutaki f, Riccardo Genco g, Shin Sugiyama b a Instituto de Ciencias Físicas y Matemáticas, Universidad Austral de Chile, Valdivia, Chile b Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan c Arctic Research Center, Hokkaido University, Sapporo, Japan d Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan e Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zürich, Zürich, Switzerland f Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan g Dipartimento di Scienze della Terra, Università di Firenze, Florence, Italy a r t i c l e i n f o a b s t r a c t Article history: Measuring glacier calving magnitude, frequency and location in high temporal resolution is necessary Received 13 November 2018 to understand mass loss mechanisms of ocean-terminating glaciers. We utilized calving-generated Received in revised form 14 February 2019 tsunami signals recorded with a pressure sensor for estimating the calving flux of Bowdoin Glacier Accepted 14 March 2019 in northwestern Greenland. We find a relationship between calving ice volume and wave amplitude. Available online 1 April 2019 This relationship was used to compute calving flux variation. The calving flux showed large spatial and Editor: J.P. Avouac 5 3 −1 temporal fluctuations in July 2015 and in July 2016, with a mean flux of 2.3 ± 0.15 × 10 m d .
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