374 Sensitivity Test to Atmospheric Forcing of Storm Surges in the Gulf of Mexico

Monday, 13 January 2020
Hall B (Boston Convention and Exhibition Center)
Duanjun Lu, Jackson State Univ., Jackson, MS; and H. R. Shih, T. Black, and A. Triplett

The water level of storm surge induced by hurricane can be sensitive to many factors including atmospheric forcing. Different methods for sensitivity test to storm surge hindcasting are used until now. Nevertheless, these methods are not always capable to provide insight in observed surge patterns in Gulf coasts. On the other hand, numerical modeling provides a powerful means to investigate surge action to atmospheric parameters. In this study, we will focus on assessing and explaining spatial and temporal patterns of a storm surge occurring in Gulf of Mexico by applying numerical simulation study of Advanced Circulation (ADCIRC) model. The storm surges were produced by the landfall of hurricanes occurring along Gulf Coasts in 2017. We will investigate how atmospheric forcing including surface winds and pressure impact storm surge by subjectively perturbing hurricane wind and central pressure. We also tried to investigate the coupling between an atmosphere model (WRF) & ocean (ADCIRC) modeling analysis for water level data.
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