Current Members

Wagner, Lara (Chair) Carnegie Institution for Science/DTM

• Broadband seismology
• Field seismology
• Seismic tomography
• Seismic anisotropy
• Scattered wave imaging
• Tectonics of convergent margins
• Evolution of continents and the effects of tectonic inheritance

Allstadt, Kate USGS Geologic Hazards Science Center

• Seismic methods for non-traditional targets (e.g. landslides, glaciers, debris flows)
• Engineering seismology
• Seismically induced landsliding and liquefaction
• Real-time products (Shakemap, ShakeCast, PAGER)

Christensen, Doug University of Alaska, Fairbanks

• Spatial and Temporal Variations of Intraplate Seismicity as related to Subduction Zone Dynamics
• Rupture Process, Asperity Distribution and Source Models for large and great earthquakes of Alaska and the World
• Tomography (3-D structure determination)
• Geophysical Inverse Theory
• Forward and Inverse Modeling of seismic waves
• Broadband Seismic Studies
• GPS and Geodetic Measurements as Related to Pre-,Co-, and Post- Earthquake Deformation
• Field Studies

Hansen, Samantha University of Alabama

I primarily work in Antarctica, Africa, and the Middle East, using methods such as tomography and receiver functions to study large-scale tectonic structures.

Holbrook, Steve University of Wyoming

• Near-surface geophysics in the Critical Zone
• Active-source reflection/refraction seismology
• Seismic oceanography
• Continental margin structure

Leidig, Mark Weston Geophysical Corporation

• Nuclear Explosion Monitoring & Forensics
• Induced Seismicity
• Hydraulic Fracturing Characterization
• Low Cost & Power Seismic and Acoustic Sensors
• Shallow Crustal Structure

Okaya, David University of Southern California

• Controlled source seismology (refraction, reflection, onshore-offshore)
• Seismic imaging methods
• Crustal seismic anisotropy and rock physics
• 3D anisotropic wave propagation code and applications
• Plate boundary deformation using field experiments

Schwartz, Susan University of California, Santa Cruz

• Strain accumulation and release on megathrust faults
• Shallow subduction zone structure
• Stick-slip motion and seismicity of ice sheets

Walter, Jake University of Texas, Austin/Institute for Geophysics

• Ice and earthquake seismicity studies
• Tectonic tremor

Aster, Rick (ex officio)                      Colorado State
Abers, Geoff (Board Liaison) Cornell University

PASSCAL Standing Committee Observers and IRIS Staff

Bilek, Sue (Observer) New Mexico Tech
Beaudoin, Bruce (Observer)  PASSCAL Instrument Center Director
Harder, Steve (Observer) University of Texas, El Paso
Sweet, Justin IRIS-PASSCAL Project Associate
Anderson, Kent IRIS-PASSCAL Program Manager


Preamble to Standing Committee Charge

The Program Standing Committees form essential links in the IRIS governance and management structures.  They provide a direct voice for the community to bring issues of policy and program development to the Programs and to the Board of Directors (BoD). They provide advice to the Program Managers and IRIS President in the development of activities and budgets to be presented to the BoD for approval.  Formally reporting to the BoD, these committees provide oversight of their respective Programs.  They also provide recommendations on policy issues and new programmatic initiatives to the BoD.  Each Standing Committee Chair is to work closely with the Program Manager to prepare semi-annual reports to the BoD and to develop agendas for Standing Committee  meetings.

Committee Charge

The PASSCAL Standing Committee advises the Board of Directors and the PASSCAL program on policies of the portable instrumentation program, addressing issues in hardware development, usage, and services related to field support and the dissemination of data collected by individual field projects.  This committee is charged by the Board of Directors to:

  1. Set standards of instrumentation and software development for PASSCAL, working in concert with the PASSCAL Program Manager to exploit new technology.
  2. Set guidelines for the use of the PASSCAL facility. This includes the use of equipment and services provided by instrument center personnel.
  3. Set guidelines for archiving data collected in PASSCAL experiments.
  4. Aid in scheduling instrument use and advise on issues concerning PI responsibility.
  5. Develop and evaluate strategies for the continued maintenance and procurement of PASSCAL instrumentation so as to best serve the needs of the community. 
  6. Develop new initiatives to enhance the effectiveness of the PASSCAL program
  7. Advise the Program Manager and the IRIS President on program planning and annual budgets. 
  8. Provide oversight of the PASSCAL program, 
  9. Review activities and sources of support for new initiatives that use or wish to use PASSCAL facilities or resources in the context of the effectiveness of the overall IRIS mission.

Action Items