Collaborative Research: Multi-Parameter Geophysical Constraints on Volcano Dynamics of Mt. Erebus and Ross Island, Antarctica

The location and geometry of the magmatic plumbing from vent to lower crust system remain poorly constrained, particularly below 1 km depth. The style and causes for changes in volcanic and magmatic activity over the short term (minutes to hours) and on the decadal scale remains enigmatic.

Two decades of campaign and continuous GPS data on Ross Island provide insights into the longer term dynamics of both, Ross Island growing within the Terror Rift, and Erebus' deeper magmatic system. We organized and analyzed all existing GPS data for Ross Island, and interpreted anomalies in the resulting time series. The GPS data were consistently processed and interpreted.