78: Exploring the generalized sampling theorem in space with Johan Robertsson

In this episode, host Andrew Geary showcases Johan Robertsson's upcoming virtual course on generalized sampling and gradiometry. Johan spotlights the importance of mathematician Harry Nyquist to geophysics, explains the increased interest in rotational seismology, what geophysicists can learn from seismic data acquisition on Mars, and shares important advice for anyone seeking to succeed in geophysics. Visit https://seg.org/podcast/Post/9002 for the complete show notes and to register for Dr. Robertsson's virtual course. BIOGRAPHY Johan Robertsson received an M.Sc. from Uppsala University, Sweden, in 1991 and a Ph.D. from Rice University, Houston, Texas, in 1994. He spent 1995 and 1996 as a postdoc at ETH in Zürich, Switzerland. He then joined Schlumberger in 1996, where he spent 15 years in various R&D and management positions in Cambridge (UK), London, and Oslo. In his last assignment with Schlumberger, he was the research director of geophysics and scientific advisor at Schlumberger Cambridge Research. Since 2012 he is a professor at ETH where he holds the Chair of Applied Geophysics and leads the Exploration and Environmental Geophysics (EEG) group. In 2015, he received the Eni “New frontiers in hydrocarbons upstream award” together with former colleagues from Schlumberger. In 2016, he was awarded an ERC advanced grant from the European Union and also founded Seismic Apparition GmbH. In 2018, he received EAGE’s Conrad Schlumberger Award. Prof. Robertsson’s research interests include seismic acquisition, simultaneous source separation, wave-equation-based processing, physics of wave propagation, and full-waveform modeling. He has held various offices with SEG, EAGE, and RAS. CREDITS Original music by Zach Bridges. This episode was hosted, edited, and produced by Andrew Geary. Thank you to the SEG podcast team: Jennifer Crockett, Ally McGinnis, and Mick Swiney.