Pyroclastic flow types1/4/2023 ![]() ![]() To accomplish this, we introduce an inversion approach to estimate geophysical parameters for both 19 PFDs. Because much of the 2006 PFDs overlie those from the previous eruption in 1986, geophysical models were derived to decompose deformation contributions from the 1986 deposits underlying the measured 2006 deposits. The data were processed using d-InSAR time-series analysis to measure the thickness of the Augustine PFDs, as well as their surface deformation behavior. To conduct this analysis, we obtained 48 SAR images of Augustine Volcano acquired between 19, spanning its most recent eruption in 2006. This study analyzes the extent, volume, thickness, and variability in pyroclastic flow deposits (PFDs) on Augustine Volcano from measuring their deformation rates with interferometric synthetic aperture radar (InSAR). Deformation of pyroclastic flow deposits begins almost immediately after emplacement, and continues thereafter for months or years. ![]()
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