1. Dr. Milton Garces Infrasound Laboratory, University of Hawaii, Manoa Ongoing Efforts in the Formation of an International Infrasound Consortium 2003 Infrasound Technology Workshop, San Diego, California

2. Proposed Consortium Aims Encourage growth and excellence in the field of infrasound Identify research priorities and key experiments Build a well-connected, coordinated constituency Nurture relationships with funding agencies Develop resources that can be shared by the infrasound community

3. NSF Infrasound Workshop, June 24-25, 2003 Participating US Institutions University of Mississippi University of Hawaii, Manoa University of California, SD University of Alaska, Fairbanks Southern Methodist University Penn State University of Arkansas Florida Institute of Technology Purdue University Boston University IRIS Naval Research Laboratory Sandia National Laboratory Los Alamos National Laboratory US Geological Survey NOAA Interest from industrial sector: SAIC, Aerospace Corporation, BBN (AT&T), Boeing International collaborators in Canada, Australia, and Europe

4. Available Resources: International Infrasound Consortium (IIC) Appendix A of Summary of Group Discussions during NSF Infrasound Workshop, June 24-25, 2003 The Infrasound Workgroup noted that sufficient resources were available to consolidate as an informal consortium, independent of any funding agencies. We proposed a Memorandum of Understanding for core institutions. MOU presently under review IMS infrasound network data Portable systems: 294 data channels, 93 pressure sensors NOT standardized Sensor development programs, standard data formats (CSS), available software, and supercomputing resources

5. Selected Projects Projects proposed during Group Discussions, NSF Infrasound Workshop, June 24-25, 2003 Teams formed and white papers submitted for internal review Of 8 papers submitted on infrasound, 5 are considered sufficiently mature to be presented to NSF for guidance Studies of eruption processes Modeling of microbaroms Infrasonic remote sensing of the atmosphere Source studies of littoral processes Studies of long-period acoustic waves in the atmosphere

6. Studies of eruption processes Kilauea Volcano, Hawaii Soufriere Hills Volcano, Montserrat

7. Modeling of microbaroms Microbaroms believed to be generated by the nonlinear interaction of ocean surface waves Signals can be used as sources for passive acoustic tomography

8. Remote sensing of the atmosphere Microbaroms, Bhattacharyya et al., 2003 Columbia reentry, 2/1/03

9. Source studies of littoral processes

10. Long-period acoustic waves in the atmosphere Image and characterize the acoustic/gravity wavefield in the upper atmosphere

11. Other projects: Bolides, Solitary Waves, Bioacoustics, Weather-Related Infrasound Projects are interesting and important, but are presently missing key components For some of the projects, we have not identified experts in US academia Suggestion for collaborators or other projects are welcome

12. NSF Guidance Positive feedback, encouraged to submit proposals Requests for new projects EAR proposals due on Dec 1, OCE on Feb 14, ATM is open Fall 2003 AGU Union Session, Recent Infrasound Studies, Phenomena and Development: great opportunity to interact with geosciences community and NSF program managers.

13. Recommended approach Identify funding agencies for basic science in your country, nurture a relationship with them, and establish collaborations In US, identify project of interest to NSF: basic research, not monitoring! NSF has small budget, $100k/year, 3 years Identify experts in US academia that have interest in project Communicate with US Infrasound Steering Committee for NSF effort: quality control, networking, resource sharing Build representation within NSF review committees

14. Onwards