The Study of the Hurricane-Induced Storm Surge and Bay-Ocean Exchange Using a Nesting Model

摘要: Lagoon systems are more heavily impacted by hurricanes, whereas the relevant storm surge modeling studies have been paid little attention to lagoon and storm-induced exchange in is even less understood. To address this gap, a three-dimensional unstructured grid-based model was configured for Maryland Coastal Bays, typical system with two unique inlets (Ocean City Inlet (OCI) Chincoteague (CI)), investigate how Hurricane Sandy inlet dynamics. A nesting framework applied provide necessary remote forcing from large domain maintain intricate shoreline bathymetry of an inner domain. Results indicated that flux patterns varied response change wind direction rising/falling high water levels coastal ocean, rather than single flow pattern during passage Sandy. From October 29 05:00 17:00 UTC, mild (> 10 m/s) strong (> 15 m/s) northerly winds accompanied rising level ocean promoted mean inflow at OCI outflow CI. Strong southwesterly dominated bays 30 03:00 15:00 UTC. Under falling transported landward CI seaward OCI. Sensitivity experiments on various temporal scales showed net occurred bays, amounts became smaller longer durations. Residual effect relatively river could still influence salinity OCI, not affected owing long distance between locations.