Great Bay, NH (N130) Bathymetric Digital Elevation Model (30 meter resolution) Derived From Source Hydrographic Survey Soundings Collected by NOAA
Bathymetry for Great Bay was derived from six surveys containing 30,640 soundings. One older, less accurate, overlapping survey was omitted before tinning the data. The average separation between soundings was 39 meters. There was a survey in the southeast that dated from 1950. The other five surveys dated from 1953 …