. DMS : Diagnostic Modeling System. Sedimentation and deposition; Channels (Hydraulic engineering). Figure 37. Current vector map for proposed GIWW relocation Comparing time series of currents calculated at the western island locations, the average peak current at the existing island was about cm/sec, whereas the average peak current at the proposed island was cm/sec, or cm/sec weaker (Figure 38). The differences in currents are presented in Figure 39, which were computed by subtracting, for each entry in the time series, the existing-configuration current from the proposed-conf
. DMS : Diagnostic Modeling System. Sedimentation and deposition; Channels (Hydraulic engineering). Figure 37. Current vector map for proposed GIWW relocation Comparing time series of currents calculated at the western island locations, the average peak current at the existing island was about cm/sec, whereas the average peak current at the proposed island was cm/sec, or cm/sec weaker (Figure 38). The differences in currents are presented in Figure 39, which were computed by subtracting, for each entry in the time series, the existing-configuration current from the proposed-configuration current; negative values of the current contained in this plot correspond to the existing-condition current being greater than the proposed- configuration current. The current is reduced because the water flows over an increasingly wider area. Time-averaged currents at these locations were cm/sec for the existing site as opposed to cm/sec for the numerical station. Comparing time series of currents computed at the MSC-GIWW intersection, presented in Figure 40, the average-peak current at the existing intersection was about cm/sec, whereas the average-peak current at the proposed intersection was cm/sec, or about 20 cm/sec less. Weaker currents at the proposed site can be expected because it is simated about 13,000 ft from the bay side of the MSC entrance, or approximately 7,000 ft to the north-northwest from the existing intersection. Time- average currents at the existing and proposed sites were and cm/sec, respectively, and differences in currents are presented in Figure 41. The MSC is an efficient conduit for water flow because of its depth. The predominant component of the current in the MSC is along its axis, which plays a major role for moving sediment into the channel. For the pair of stations residing between the GIWW and the islands, the average-peak current north of the existing island was about cm/sec, whereas the average-
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