The author names for the following two summaries originally appeared as Pascal and Yuan and Pascal and Halliday, but they should have read:

Edme and Yuan formulate a novel acquisition and processing technique to derive surface-wave dispersion curves from seismic ambient noise. The authors show that the use of spatial gradients of the wavefield provides new opportunities for high-resolution near-surface characterization with minimal field effort.

Edme and Halliday propose an iterative gapped spiking deconvolution technique (in place of the conventional correlation technique) for zero-offset imaging using the upcoming body-wave arrivals extracted from ambient-noise land seismic data.

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