Scatter density plot of raw propagation phase anomaly measurements for 100 s R1 waves common to two techniques. Scatter points are colored based on high (red) or low (blue) spatial density. Strong agreement is found; minor discrepancies are from discrepant theoretical approximations, reference Earth models & processing schemes.
- How fast do surface waves travel globally after any earthquake?
- Do we get the same information from various measurement techniques?
- Which features in the Earth are robust and can be resolved by a reference model?
Checkout out our peer-reviewed article written in collaboration with 18 scientists from 16 institutions in 7 countries who actively participated in the REM3D project (among others). The project assimilated, archived, reconciled and modeled big (>200 million measurements) and diverse surface-wave datasets for global subsurface structure.