APAALSE - Paper - Caris

the second sediment - Coarse Raster Model. It must be stated that these analyses are for
demonstration only as gridded datasets are not accepted by the Commission for submissions.
Establishment of the 350 Nautical Miles Limit
As already stated the constraint line was computed for only the 350 M as this portion of the
Eastern Equatorial Atlantic has a rather narrow continental shelf and a very steep continental
slope. The 2,500 meter isobath is very close to shore, and in no location of the study area did it
protrude seaward of the 350 M (Figure 11).
Figure 11: This figure illustrates the positions of the 2,500 m isobath (light grey line), the 2,500
m + 100 M constraint line (light green, offshore) and the 350 M line (dark blue, offshore).
Delimitation of the Potential Extension area
Based on the analyses of the two sediment datasets discussed above, two sets of results were
computed. The Fine Sediment Datasets show that Ghana’s extended continental shelf lies only to
the eastern portion of the study area with an approximate area of 6,148 km² (Figure 12).
12