Short wavelength topography on the inner-core boundary

• Published in: Proceedings of the National Academy of Sciences
• Main Authors: Cao, Aimin, Masson, Yder, Romanowicz, Barbara
• Format: Text
• Language: English
• Published: National Academy of Sciences 2007
• Subjects: Physical Sciences; Doublets; Sandwich Islands; South Sandwich Islands; Yellowknife
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1765456; http://www.ncbi.nlm.nih.gov/pubmed/17190798; https://doi.org/10.1073/pnas.0609810104

Constraining the topography of the inner-core boundary is important for studies of core–mantle coupling and the generation of the geodynamo. We present evidence for significant temporal variability in the amplitude of the inner core reflected phase PKiKP for an exceptionally high-quality earthquake...