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Workshop Archives 2010-2011
  Diffusion Optical Imaging,
     October 2011

  Biomechanical Imaging, April 2011
  Microlocal Analysis in Imaging,
     August 2010

  Seismic Waveform Tomography,
     April 2010

  System Identification of Geosystems,
     March 2010

Workshop Archives prior to 2010
  System Identification of Geosystems
     March 24, 2008

  Radar Waveform Design and Imaging
     May 19, 2005

  Geophysics, January 2004
  Solid Mechanics, March 2004
  Opening Conference, 2004


IPRPI Workshop on Seismic Waveform Tomography
April 27-28, 2010


Workshop Description:

        Because seismograms of elastic waves provide the highest resolution and least ambiguous images of the subsurface, seismologists have been motivated for many years to develop increasingly sophisticated techniques to exploit the information in seismic waveforms.  Historically, seismic imaging techniques have evolved from two end member approaches:  full waveform techniques capable of modeling mildly heterogeneous media, and ray or infinite frequency techniques that migrate coherent phases in a strongly heterogeneous media but ignore the details of the waveform. The former techniques generally have been employed by passive source seismologists, as large earthquakes can generate the required large amplitude, long wavelength signals. The latter have been used extensively by active source seismologists, who generate short wavelength signals from artificial sources to resolve fine details of near surface structure.  The challenge for seismic imaging over the past decade has been to close the gap between these approaches, either by analytically adapting long wavelength techniques to smaller scales or using numerical techniques to recover the information in high frequency waveforms.

        Technical developments over the past several years have brought about a remarkable increase in both the quantity and quality of seismic data, as well as tremendous advances in computing capabilities.  Seismologists from both the active and passive source communities have been taking advantage of these advances to develop techniques that extend the analysis of waveforms to progressively higher frequencies. The most promising applications, which can be collectively categorized as seismic waveform tomography attempt to take advantage of the entire seismic wavetrain in constructing an image.  The applications are diverse, in part because the seismologists who propose them have a particular application in mind.  Nevertheless, all of these researchers are in a real sense trying to solve the same problem:  how to image the physical properties of the subsurface using the waveform of a recorded vibration.  Hence, there should be opportunities for cross-fertilization that can result in significant advances in both active and passive source imaging.  A principle motivation for this workshop is to invite several key researchers from both the active and passive source sides of seismology to discuss and compare their approaches and discover how we might benefit from each others’ experiences.

This workshop is supported by the Division of Mathematical Sciences at the National Science Foundation, NSF DMS-0852516.


Program for the Workshop:

The proposed workshop will run for two days, the first day being devoted to active source techniques and the second to passive source techniques. Each day will consist of five 45 minute talks followed by a 15 minute short discussion session, with a a one hour discussion session at the end of the day.      

Dr. Steven W. Roecker, Earth and Environmental Sciences Department, RPI

Invited Speakers:

Tuesday, April 27

9:00-9:45 AM
Daniel Peter
Princeton University
Department of Geosciences
Title: Toward seismic adjoint tomography for local to global scale problems

10:15-11:00 AM
Christina Morency
Princeton University
Department of Geosciences
Title: Imaging in elastic & poroelastic media based upon spectral-element & adjoint methods:
Insights into CO2 sequestration monitoring and exploration geophysics

11:30-12:15 PM
Dr. Carl Tape
Harvard University
Department of Earth and Planetary Sciences
Title: Seismic tomography and imaging of the southern California crust

1:15-2:30 PM
Professor Gary L. Pavlis
Department of Geological Sciences
Indiana University
Title: Three-dimensional, plane wave migration results from the USArray:
high resolution imaging of the Juan de Fuca/Farallon Slab;

3:00-3:45 PM
Michael Bostock
The University of British Columbia
Earth and Ocean Sciences
Title: Fate of Water in the Cascadia Subduction Zone Unveiled by Teleseismic Imaging

Wednesday, April 28th

9:00-9:45 AM
Florian Bleibinhaus
Asst. Prof. of Geophysics
Salzburg University
Title: Applying waveform inversion to long-offset data

10:15-11:00 AM
Dr. Paul Sava
Center for Wave Phenomena, Department of Geophysics
Colorado School of Mines
Title: Wavefield seismic tomography using extended images

11:30-12:15 PM
Uwe Albertin
Advanced Imaging Team, BP America
Title: An overview of waveform tomography methods in the seismic industry

1:45-2:30 PM
Maureen D. Long, Assistant Professor
Department of Geology and Geophysics
Yale University
Title: Wave-equation imaging of anisotropic structure in the Earth's mantle: Progress and prospects

3:00-3:45 PM
Meghan Miller
University of Southern California
Earth Sciences
Title: Imaging the lithospheric structure of the Western US using USArray data

*** Participant List ***

Location: ***Change in original location***
The workshop will be held at the Blitman Residence commons, which is located on 6th Ave near the corner of Broadway in downtown Troy. This is within close walking distance from the Franklin Square Inn & Suites. Please view the map to see the walking route.

If you are driving directly to the conference location, please search directions to the address:
Howard N. Blitman, P.E. '50 Residence Commons
1800 6th Avenue
Troy, NY 12180-3407

Travel and Lodging:

Driving directions and a campus map can be found at:

There are a number of places to stay in the Troy/Albany/Schenectady area that are convenient to RPI.

We have reserved a block of rooms at a reasonable hotel, Franklin Square Inn & Suites, close to campus. When you request a room, you will need to mention: "IPRPI" to ensure you receive the RPI rates.

Franklin Square Inn and Suites
One Fourth Street
Troy, NY 12180
Ph: 518-274-8800
Fax: 518-274-0427
email: fssuites@yahoo.com

Internet and breakfast are included in the room charge.

The Franklin Inn is within close walking distance from the conference location at the Blitman Residence Commons. Please view the map to see the walking route.

The Blitman Residence Commons is also within close walking distance to Rensselaer's main campus. If you need transportation to the Rensselaer campus, you can use the Redhawk shuttle service.The shuttle stops at the Blitman Residence Commons. The shuttle map including the location of the Blitman Residence Commons and the shuttle route can be found at:

Hilton Garden Inn Troy
235 Hoosick Street,
Troy, NY
(518) 272-1700

Internet is included with this room charge. Shuttle services will be provided to the Blitman Residence Commons by the Hilton each morning at 8:15 AM on Tuesday and 8:30 AM on Wednesday, and late Tuesday and Wednesday afternoon at 5:15 PM from RPI back to the Hilton. The Hilton will also provide transportation from the airport to the hotel, and back. Please contact the Hilton to make those arrangements.

If you are driving from the Hilton to conference location please view the map for directions.

Speaker/Participant Reimbursement:

To apply in advance for travel reimbursement, please fill out a provided application for travel reimbursement.

After travel is completed and we have received your application for travel reimbursement, we will notify you of your funding award. At that time you will receive a travel reimbursement form for you to sign and return with your origianl receipts.

A/V Equipment and materials for poster presentations:
Two computer projectors will be available for talks.If additional equipment is needed please contact(mclauj3@rpi.edu). Stands for posters as well as poster board for mounting posters will be made available. If you will be presenting a poster, please advise that the poster boards are 36x48 in.

Please fill out and send a provided conference registration form to (mclauj3@rpi.edu), if you plan to attend. Please indicate on the form if you want to make a poster presentation, giving the title of your poster presentation at the same time.

Parking and Transportation:

If you are driving to the workshop, campus parking permits can be obtained by first contacting(mclauj3@rpi.edu) and she will arrange for a parking permit to be left for you at the front desk of the Franklin Inn & Suites or the Hilton Garden Inn.

There is available parking in the lot outside the workshop location at the Blitman Residence Commons.

For more information regarding the technical program, contact Steven Roecker (roecks@rpi.edu) or (518) 276-6773.


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