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A. J. Berkhout is a pioneering figure in seismic acquisition research, whose work has fundamentally advanced how geophysicists collect and process subsurface data. His most significant contributions center on the theory and practice of **blended seismic acquisition**, particularly his innovative development of **Dispersed Source Arrays (DSAs)** and the concept of inhomogeneous blending — a paradigm shift from the traditional practice of using identical broadband source units in seismic surveys. Berkhout's landmark 2012 paper, "Blended Acquisition with Dispersed Source Arrays," has garnered 69 citations, reflecting its substantial influence on the field. Rather than relying on conventional broadband sources, he proposed replacing them with narrowband devices that collectively span the required frequency spectrum — a concept he termed multi-bandwidth blending. This approach promises more efficient, cost-effective, and flexible seismic data acquisition, with potential to improve both land and marine survey operations. His body of work demonstrates a consistent drive to push seismic acquisition beyond its conventional boundaries, offering solutions that are both technically elegant and practically deployable. For students and researchers in exploration geophysics, Berkhout's contributions represent an essential foundation for understanding next-generation seismic survey design and source-array innovation.