Clearly the major activity for the Unavco community over the next few years is the implementation of the Plate Boundary Observatory (PBO). PBO is a large endeavor that will involve many community members, and thus it is appropriate that the community focus its efforts on addressing the challenges of installing and running a network an order of magnitude larger than anything the community has done to date. While many organizations will participate in PBO, Unavco is the only one which truly represents the interests of the community as a whole, and thus its participation in this process is critical. The experience I offer to the Unavco community is in the area of satellite geodesy (reference frames, GPS orbit determination, GPS data analysis, etc.) and sea level change (GPS vertical, post-glacial rebound, etc.). I have experience installing a network of permanent GPS sites in the northeastern U.S. for measuring post glacial rebound, and I participated in one GPS field campaign in Alaska. I also have experience with space-based geoscience applications of GPS, such as JASON, ICESAT, and GRACE. I gained experience managing large projects while I was at NASA, thus I think I could contribute effectively to helping Unavco successfully initiate PBO. I believe I can offer a unique perspective on the issues affecting the Unavco community in the next few years.

Steve Nerem Biography

R. Steven Nerem received his B.S. in Geology from Colorado State University in 1982, and his M.S. and Ph.D. degrees in Aerospace Engineering from the University of Texas at Austin, in 1985 and 1989 respectively. From 1990-1996 he was a geophysicist in the Space Geodesy Branch at NASA/Goddard Space Flight Center. During this time, he worked on the Lageos-2, TOPEX/Poseidon, Pioneer Venus Orbiter, Magellan, and Mars Observer missions. In 1995, he was awarded NASA's Exceptional Scientific Achievement Medal. From 1996-2000, he was an Assistant and then Associate Professor in the Department of Aerospace Engineering and Engineering Mechanics at the University of Texas at Austin. Since Fall 2000, he has been an Associate Professor in the Department of Aerospace Engineering Sciences at the University of Colorado at Boulder, where he teaches courses on spacecraft dynamics and satellite geodesy. He is also a Fellow of the Cooperative Institute for Research in the Environmental Sciences (CIRES) and is currently Secretary of the Geodesy Section of the AGU. His research is funded by NASA and the National Science Foundation. His GPS research currently involves studying post-glacial rebound on the northeast coast of the U.S., GPS-based precision orbit determination for the Jason satellite, and improvements in GPS vertical positioning for tide gauges. He is also a principal investigator on the TOPEX/Poseidon and Jason-1 science teams studying long-term sea level change, and he conducts research on Earth and planetary gravity field determination. He has published more than 40 refereed articles in scientific journals.

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