Free Access

Fig. D.1.


Top panel: comparison of cut at a latitude of 30° north computed from different frequencies as a function of distance. The frequencies used in this comparison are 3.0, 3.1, 3.2, and 3.3 mHz (see legend). A 30°-wide arc-to-arc geometry is implemented. The flow model used is MC1. Bottom panel: differences between the travel-time shifts shown in the top panel. We note that the differences increase rapidly as the travel distance decreases, and are on the order of hundredths of a second for the shortest distance (Δ = 6°) used in this work. Also, the smaller the frequency used in the ray approximation, the steeper the decline in the derived travel-time shift with increasing travel distance

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.