St. Helena Sound, SC (S100) Bathymetric Digital Elevation Model (30 meter resolution) Derived From Source Hydrographic Survey Soundings Collected by NOAA
Bathymetry for St. Helena Sound was derived from nineteen surveys containing 83,246 soundings. No surveys were omitted. The average separation between soundings was 49 meters. Sixteen of the nineteen surveys used dated from 1934. The remaining surveys, located in the southwest, dated from 1956 and 1973. The total …