A5068002309- earthquake and tectonic studies
- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- Geophysics and Gravity Measurements
- Seismology and Earthquake Studies
- Geophysics and Sensor Technology
- Carbon Nanotubes in Composites
- Surface and Thin Film Phenomena
- Graphene research and applications
- Quantum, superfluid, helium dynamics
- Advanced Physical and Chemical Molecular Interactions
- Geology and Paleoclimatology Research
- Physics of Superconductivity and Magnetism
- Geological and Geophysical Studies
- Acoustic Wave Resonator Technologies
- Inertial Sensor and Navigation
- Coastal and Marine Dynamics
- Marine and Offshore Engineering Studies
- Hydraulic Fracturing and Reservoir Analysis
- Molecular Junctions and Nanostructures
- Structural Integrity and Reliability Analysis
- Magnetic confinement fusion research
- Chemical and Physical Properties of Materials
- Reservoir Engineering and Simulation Methods
- Atomic and Subatomic Physics Research
The University of Texas at Austin
2024
University of Washington
2012-2023
Seattle University
2012-2023
Princeton Plasma Physics Laboratory
2014
Abstract We present seafloor pressure records from the Cascadia Subduction Zone, alongside oceanographic and geophysical models, to evaluate spatial uniformity of bottom optimize geometry sensor networks for resolving offshore slow‐slip transients. Seafloor 2011 2015 show that signal amplitudes are depth‐dependent, with tidally filtered detrended root‐mean‐squares <2 cm on abyssal plain >6 continental shelf. This is consistent predictions circulation models comparable deformation slow...
Geodetic observations in the oceans are important for understanding plate tectonics, earthquake cycles and volcanic processes. One approach to seafloor geodesy is use of pressure gauges sense vertical changes elevation after correcting variations weight overlying atmosphere. A challenge using tendency sensors drift. The A-0-A method a new valve used periodically switch, short time, measured from external ocean inside instrument housing at atmospheric pressure. internal reading compared an...
Abstract In subduction zones worldwide, seafloor pressure data are used to observe tectonic deformation, particularly from megathrust earthquakes and slow slip events (SSEs). However, such measurements also sensitive oceanographic circulation‐generated pressures over a range of frequencies that conflate with signals interest. Using temperature the Alaska Amphibious Community Seismic Experiment, sea surface height satellite altimetry, we evaluate efficacy various seasonal signal proxy...
Abstract We present observations from two field deployments of a calibrated tiltmeter that we name the Self‐Calibrating Tilt Accelerometer (SCTA). The is based upon triaxial quartz crystal accelerometer; horizontal channels measure tilt and are periodically rotated into vertical to obtain measurement acceleration gravity. Changes in measured total ascribed drift channel used as calibrations for removing same time series observed between calibrations. span (sensitivity) accelerometer can also...
Seafloor geodesy is challenging but important for understanding the hazards from earthquakes and tsunamis along subduction zones. Two methods of seafloor are presented based on obtaining self-calibrated measurements with resonant quartz crystal technology sensors. The A-0-A method calibrating pressure observations utilizes internal instrument housing as a reference to calibrate sensor drift. An 8-month test at depth 900 m, shows has reduced relative drift between two sensors <;1 mm. rotating...
Abstract The boundary between the overriding and subducting plates is locked along some portions of Cascadia subduction zone. extent location locking affects potential size frequency great earthquakes in region. Because much offshore, measurements on land are incapable completely defining a zone up‐dip Deformation models indicate that record seafloor height changes accretionary prism can reveal locking. To detect such changes, we have initiated series calibrated pressure using an absolute...
Measurements of ground tilt are a critical geodetic tool for monitoring active volcanoes because they provide multidimensional data that can resolve complex deformation signals. We developing Self-Calibrating Tilt Accelerometer (SCTA) use in the marine environment and present results from two deployments: on land at Scripps Institution Oceanography Cecil Ida Green Piñon Flat Observatory seafloor Axial Seamount Juan de Fuca Ridge. The SCTA utilizes Quartz Sensor Solutions triaxial...