HR: 1330h
AN: OS43A-15    [Abstracts]
TI: Simulation of Coastal Currents and Storm Surge During Hurricane Isabel Using NCOM
AU: * Riedlinger, S N
EM: Shelley.Riedlinger@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7322 Bldg. 1009, Stennis Space Center, Ms 39529 United States
AU: Keen, T R
EM: Timithy.Keen@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7322 Bldg. 1009, Stennis Space Center, Ms 39529 United States
AU: Rowley, C
EM: Clark.Rowler@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7322 Bldg. 1009, Stennis Space Center, Ms 39529 United States
AU: Allard, R A
AF: Naval Research Laboratory, Code 7322 Bldg. 1009, Stennis Space Center, Ms 39529 United States
AU: Dykes, J D
EM: James.Dykes@nrlssc.navy.mil
AF: Naval Research Laboratory, Code 7322 Bldg. 1009, Stennis Space Center, Ms 39529 United States
AB: A multiple-nested configuration of the Navy Coastal Ocean Model (NCOM) has been applied to the landfall of Hurricane Isabel. The model is initialized and forced at the outermost open boundary with read-time fields from a coarse-grid global ocean model. Tidal heights and currents from a global tide database are also applied at the open boundary. Tropical cyclone forcing is obtained from real-time atmospheric models or a parametric model for tropical cyclone winds. Predicted water elevations are evaluated using observed tidal elevation timeseries. Validation of the predicted water elevations against tide guage time series shows the model has skill at forecasting the wind- and tide-driven setup and setdown around the Outer Banks. Model predicitions of currents and water levels from the model have been used as a component of a system to evaluate the potential for storm-produced barrier island erosion and breaching during Isabel. The system is readily relocatable, and could be used as a forecast tool in coastal mangement.
UR: http://www7320.nrlssc.navy.mil
DE: 4255 Numerical modeling
DE: 4504 Air/sea interactions (0312)
DE: 4546 Nearshore processes
DE: 4556 Sea level variations
DE: 4564 Tsunamis and storm surges
SC: Ocean Sciences [OS]
MN: 2005 Joint Assembly