Can Seismic Observations of Bed Conditions on Ice Streams Help Constrain Parameters in Ice Flow Models?

• Published in: Journal of Geophysical Research: Earth Surface
• Main Authors: Kyrke-Smith, Teresa M., Gudmundsson, G. Hilmar, Farrell, Patrick E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2017
• Subjects: Pine Island Glacier; Ice Sheet
• Online Access: http://nora.nerc.ac.uk/id/eprint/518934/; https://nora.nerc.ac.uk/id/eprint/518934/1/Kyrke-Smith_et_al-2017-Journal_of_Geophysical_Research__Earth_Surface.pdf; https://doi.org/10.1002/2017JF004373

We investigate correlations between seismically derived estimates of basal acoustic impedance and basal slipperiness values obtained from a surface-to-bed inversion using a Stokes ice flow model. Using high-resolution measurements along several seismic profiles on Pine Island Glacier (PIG), we find...