Science Service System
You are here : Home : Proposals_Summary

Summary of Proposal GEO2326

TitleUsingTerraSAR-X to study magmatic, seismic, and other processes at volcanoes in the Cascade Range, northwestern USA
Investigator Dzurisin, Daniel - U.S. Geological Survey, David A. Johnston Cascades Volcano Observatory
Team Member
Geophysicist Wicks, Charles - U. S. Geological Survey, Earthquake and Volcano Science Centers
Hydrologist Schilling, Steve - U. S. Geological Survey, Cascades Volcano Observatory
Geophysicist McLay, Megan - U. S. Geological Survey, Cascades Volcano Observatory
Geophysicist Poland, Michael - U. S. Geological Survey, Hawaiian Volcano Observatory
Project Manager Crosby, Christopher - UNAVCO, Geodetic Imaging and Open Topography
Associate Professor Schmidt, David - University of Washington, Earth and Space Sciences
SummaryWe have divided this proposal into two parts. The main thrust of the proposal is directed toward four Cascade volcanoes that are known to be deforming. UNAVCO has tasked TSX for several years over each of these volcanoes and we would like to be able to purchase the data for scientific research. If the data prove to be coherent, we would also like to purchase future acquisitions. The main reason to study these volcanoes is to understand surface deformation related to magmatic activity. However, at each target there are multiple possible processes to study with TSX InSAR data, e.g., magmatic activity, geothermal activity, edifice instability, earthquake activity, and glacier movement. Because none of the targets in this proposal has been imaged with X-band data, we have some uncertainty which targets will be coherent enough for deformation studies. The target we are most certain of, however, is Mount St Helens. In the late summer months, the crater floor and edifice are mostly bare rock, except for the mobile Crater Glacier and several smaller rock glaciers that we hope to study with TSX data. The second part of this proposal involves reconnaissance work at nine volcanic targets that also have multiple possible processes to study with TSX InSAR. Although we have nine separate volcanoes as targets, there are also hundreds of smaller vents surrounding the main targets that we can investigate simultaneously. The main objectives for adding these subsidiary targets to the proposal, however, is to assess the radar coherence at X-band, the capability of TSX SAR images for measuring glacier movement, and the possibility for additional study using TSX data. We hope to be able to task TSX acquisitions over each target during summer 2014 to determine if X band data are useful for research on the targeted volcanic centers.

Back to list of proposals

DLR 2004-2016