1982-1992 Woods Hole Oceanographic Institution
1992-1999 Department of Meteorology and Applied Research Laboratory, The Pennsylvania State University
1999-present Visiting Scholar, Earth and Environmental Science, University of Pennsylvania
1980 Ph.D., Oceanography, Scripps Institute of Oceanography, University of California, San Diego
1975 A.B., Physics, University of California, Berkeley
Estimating abundance of calling animals in the air and ocean, locating calling animals with widely separated receivers, propagation of sound in the ocean and air, oceanography, wave propagation, signal processing.