1.6
Goldsmith Inlet
Meter 3
1.2
0.8
0.4
0
-0.4
15:23
14:23
15:03
15:43
16:23
16:03
14:43
Time 8 October, 2002
GMT
Figure 3-48. Goldsmith Inlet midchannel current velocity, 8 October 2002
Sediment
Sample collection sites for 8 October 2002 are shown in Figure 3-49a, and Figure 3-
49b shows the sites of the 31 July 2003 sampling. The photograph serving as
background in these two figures was taken 16 April 2003. For the 8 October 2002
sampling, the inlet mouth was located somewhat to the west as compared to April 2003.
The samples were sieved to determine the grain-size distribution and median grain size of
the surficial sediments at each location. Figures 3-50a through 3-50g show the grain size
cumulative frequency for each sample site.
The surficial sediment at the inlet entrance (Samples 1-10; 15-17) is predominantly
composed of gravel (-6 to -2 φ). A transitional area is located around the shoal attached
to the west bank of the channel (Samples 11-13; 18, and 19), where smaller gravel (-4 to -
2 φ) dominates sand and larger gravel. The area of the inlet south of the transition region,
which includes the flood shoal, and the bottom of Goldsmith Pond, where samples were
taken, is composed primarily of fine gravel and very coarse to coarse sand (-1 to 1 φ).
92
Chapter 3 Field Data Collection and Analysis
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