NASA NTRS · 20010115327
Evaluation of Bogus Vortex Techniques Using Four-Dimensional Variational Data Assimilation
Abstract
The effectiveness of a four-dimensional variational data assimilation (4-DVAR) technique for creating "bogus" vortices in numerical simulations of hurricanes is evaluated in this study. A series of numerical experiments is conducted to generate initial vortices for Hurricane Georges and Bonnie (1998) in the Atlantic Ocean by assimilating bogus sea-level pressure and wind information into a mesoscale numerical model (MM5). Several different strategies are tested for investigating the sensitivity of the initial vortex representation to the type of bogus information.
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Pu, Zhao-Xia, Braun, Scott A., Starr, David OC.. 2001-01-01. Evaluation of Bogus Vortex Techniques Using Four-Dimensional Variational Data Assimilation. https://ntrs.nasa.gov/citations/20010115327
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