Tropical cyclone wind field forcing for surge models: critical issues and sensitivities |
| |
| Authors: | V J Cardone A T Cox |
| |
| Institution: | (1) Oceanweather, Inc, Cos Cob, CT, USA |
| |
| Abstract: | Several wind fields developed for Hurricane Katrina (2005) in the US Gulf of Mexico (GOM) are applied with the ADCIRC hydrodynamic
model to explore the sensitivity of predictions of coastal surges to wind fields developed by alternative methods. The alternative
model predictions are evaluated against water level measurements provided by gages at two coastal locations. It is found that
all the post-event analyzed wind fields yield a range of predictions of only ±10% of the available peak surge measurements
regardless of whether the wind fields are produced by dynamical boundary layer models, kinematic analysis methods or a blend.
However, the richness of meteorological forcing data in the GOM is not typically matched in other basins affected by tropical
cyclones and errors may be much larger where storm intensity and size parameters are estimated mainly from satellite data.
The attributes and remaining critical deficiencies of current methods for surface wind specification in both data-rich and
data-poor environments are reviewed. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
