Marine Geoscience Data System
Subduction_Bassett Bathymetry
Residual Bathymetry Anomalies at Global Subduction Zones (investigators Dan Bassett and Tony Watts)
This data set presents residual bathymetry anomalies for global subduction zones. Residuals are calculated by subtracting a regional spectral average of the trench-normal bathymetric expression across the subduction zone. This procedure removes the steep gradients associated with the seaward and landward trench-slopes, significantly improving the identification of short-wavelength lower-amplitude structure. The gridded data files are in GMT netCDF format and are cited in Bassett and Watts, 2015a,b.
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Quality
2
The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).

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