Figure 1
Bathymetric map of the East China Sea, northern Philippine Sea, Ryukyu Arc and Ryukyu Trench. Bathymetry: GEBCO global terrain model, mapped using GMT
Source: author
Figure 2
Geologic map of the Ryukyu Trench. Bathymetric base map: ETOPO1 global terrain model, mapped using GMT
Source: author
Figure 3
Model of the geoid in the Ryukyu Trench area. Raster data: Earth Gravitational Model EGM96, mapped by GMT
Source: author
Figure 4
Model of the marine free-air gravity anomaly showing gravitational settings in the Ryukyu trench-arc area. Data: gravity grid, visualized by GMT
Source: author
Figure 5
Composite overlay of the 3D topographic mesh model on the 2D geoid contour plot for topographic modelling of the Ryukyu trench-arc area
Source: author
Figure 6
Modelled stacked profiles for the southern (A) and northern (B) segments with the red solid line as a median, and error bars showing weighted standard deviation of the elevations; automatically digitized cross-section profiles in two segments (C), plotted in GMT
Source: author
Figure 7
Modelling graphs of the trend curves of general geomorphological transects and slope gradients using various mathematic approximations: fitted regression models y=f(x)+e; Weighted Least Squares, polynomial and Fourier. Plotted by GMT
Source: author
Figure 8
Statistical histograms showing depth frequency in the cross-sections of the Ryukyu Trench, based on the bathymetric data: northern (A) and southern (B) parts
Source: author