Speakers: McKenzie Carlson, Jonathan Markel and Mikayla Pascual, Institute for Geophysics, The University of Texas at Austin
McKenzie Carlson
Triggered vs Spontaneous Slow Slip Events in the Hikurangi Subduction Zone
Abstract at-a-glance: The construction of a dense onshore GNSS network at the Hikurangi subduction zone has enabled reliable documentation of recurring slow slip events (SSEs) in Aotearoa-New Zealand over the last two decades. Limited resolution of the GNSS network offshore has inspired extensive investment into seafloor geodetic techniques such as seafloor pressure and GNSS-acoustic, which has improved observations of offshore SSEs significantly.
Jonathan Markel
Fusion of Multi-Method Satellite-Derived Bathymetry in Duck, North Carolina
Abstract at-a-glance: Satellite-derived bathymetry methods – multispectral, wave kinematics-based, and parametric approaches – have different limitations and advantages for coastal mapping. Multispectral inversion can be applied to publicly available imagery and achieves sub-meter accuracy in clear water. Wave kinematics inversion can provide sub-meter accuracy in turbid conditions if waves are visible, and parametric models are similarly accurate for barred beaches with known background geomorphological characteristics.
Mikayla Pascual
Unraveling Tidewater Glacier Cycles in Greenland: From Idealized Models to Real-World Insights
Abstract at-a-glance: The tidewater glacier cycle (TGC), characterized by a long period of terminus advance followed by rapid retreat to shallower water, occurs on decadal to centennial timescales in Alaska. The TGC is driven by basal sedimentation creating stabilizing morainal banks that influence glacier dynamics. While the TGC has been well studied for Alaskan outlet glaciers, its role remains unquantified in Greenland and Antarctic contexts where tectonics, climate, and bed topography differ.