Strongly Depth‐Dependent Ice Fabric in a Fast‐Flowing Antarctic Ice Stream Revealed With Icequake Observations
Journal: Journal of Geophysical Research Earth Surface
Year: 2023

Abstract The crystal orientation fabric of glacier ice impacts its strength and flow. Crystal fabric is therefore an important consideration when modeling ice flow. Here, we show that shear‐wave splitting (SWS) measured with glacial microseismicity can be used to invert seismic anisotropy and ice fabric, if represented in a statistical sense. Rutford Ice Stream (RIS) is a fast‐flowing Antarctic ice stream, a setting crucial for informing large‐scale ice sheet models. We present &gt;200,000 SWS m