13B.2
Initialization of a hurricane vortex
PAPER WITHDRAWN
Katherine M. Bell, Florida State University, Tallahassee, FL
An inverse dynamical/ thermodynamical method for the construction of the initial hurricane is proposed here. This study entails a description of this inverse problem where given a prescribed tangential velocity field, one sequentially constructs the vertical velocity, meridional wind, geopotential height, temperature, moisture distribution, and heat sources and sinks of a hurricane.
This is a powerful procedure for describing the inner rain area (eye wall and rain bands) of a hurricane. Given the solution of the hurricane, these fields are used as data sets for a global high resolution model, where these data sets are analyzed with the surrounding global data. These two data sets are merged via a multivariate optimal interpolation scheme.
This study focuses on the impact of the use (or non use) of this proposed procedure on short range (1 to 3 day) forecasts of hurricane track and intensity evolution.
Session 13B, Tropical Cyclone Track Forecasting II (Parallel with Sessions 13A and 13C)
Friday, 26 May 2000, 10:30 AM-11:59 AM
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