Hydrodynamics. An overall summary of hydrodynamic parameters for the entire deployment is shown in Table 5.1. Important points to note include the total depth, which was 1.5-2 m deeper offshore (Site 1) than nearshore (Site 2), and the depth range, which was slightly more than 1 m at both sites. Significant wave height and wave orbital velocity were higher at Site 1 than at Site 2, by 36 and 18 %, respectively, which is consistent with the expectation that waves crossing Ship Shoal are attenuated as a result of depth-limited energy dissipation. Wave period was also higher at the offshore site, which likely reflects the reduced importance of northward-propagating long- period swell waves, also due to attenuation, relative to locally generated sea.
Hydrodynamics. All hydrodynamic scenarios were simulated for a spring- neap-cycle during the dry season and a spring- neap-cycle during the wet season. The simulated periods were: • Dry season: simulation period from 8 February 03:30h to 23 February 03:30h, simulation period 15 days, time step 30 seconds. • Wet season: simulation period from 15 July 03:30h to 1 August 03:30h, simulation period 17 days, time step 30 seconds. Adequate spin- up has been provided for salinity and temperature by means of initial conditions files. Typical 15 days of both simulation periods were used as spin- up, and were not used for the assessments purpose. The wind has been set to typical seasonally averaged values: • Dry season: northeast, 5 m s-1. • Wet season: southwest, 5 m s-1.
