The 6-8 October 2002 bathymetric survey of the offshore adjacent to Goldsmith Inlet
was conducted with an Innerspace 448 high-precision echo sounder and a Global
Positioning System (GPS). Positional accuracy is estimated at +/-1 m. Goldsmith Inlet
and Pond, the beaches adjacent to the inlet, and the area from the shoreline to wading
depth were surveyed with land-based equipment (total survey station and surveying rod).
The survey of Goldsmith Inlet and Goldsmith Pond was conducted on 8 October 2002.
A Seabird26 Paroscientific Digiquartz Pressure Sensor-based tide gauge (Tide
Gauge 3) was deployed from 19 September to 8 October 2002. Flood current velocity
was measured in the inlet from 1323 to 1643 GMT, 8 October 2002 by means of a hand-
held current meter mounted on a pole that was sunk into the bed (see Figure 4-49).
Values were read visually and recorded by hand. Fourteen sediment grab samples were
collected from Goldsmith Inlet on 8 October 2002, supplemented by 17 samples collected
on 31 July 2003. In addition, sediment samples collected and analyzed by the New York
District (2003) for the offshore area at Goldsmith Inlet are discussed here.
The extent of the survey for the Goldsmith Inlet study area is presented in
Figure 3-28a, and interpolated elevation contours for the Goldsmith Inlet study area are
plotted in Figure 3-28b. An interesting finding of the survey is that Goldsmith Inlet lacks
an ebb shoal. An implication from this observation is that bypassing from west to east
occurs around the jetty, along the spit, and then back to the shore on the east side along a
bypassing bar. In contrast, Goldsmith Inlet possess a well-developed flood shoal
consisting of three lobes. The lobes are located on the east bank, center channel, and
west bank, where Goldsmith Inlet enters Goldsmith Pond.
Chapter 3 Field Data Collection and Analysis