ABSTRACTTwo experiments using unconventional seismic sources have been studied recently at SEP, a passive seismic experiment and an experiment using a drill-bit source. The differences between these novel sources and conventional seismic sources place some added constraints on the experiment design. For instance, the ability to resolve the arrival direction of a wave in 3-D is essential if we are to discriminate the relatively weak (compared to conventional sources) source energy in the presence of nearby surface noise sources. From considerations such as this, I evaluate the design of the two experiments conducted to date and see how they could be improved upon. |