Abstract
The intensity forecasts are improved by the use of high-resolution Doppler radar data to properly initialize inner-core circulation for high-resolution numerical models. The mesoscale vorticity method is used to diagnose the vertical velocity and divergent wind based on the vorticity equation including the tilting terms. To generate the dynamically consistent datasets for unobserved fields such as heating and cloud fields, a four-dimensional data assimilation system (FDDA) based on Newtonian relaxation is used. The results show positive radar data impacts on track and intensity forecasts and a comparison of forecast winds and radar wind measurements show that the use of radar data improves the intensity and horizontal structure of forecast wind fields.
| Original language | English |
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| Pages (from-to) | 2157-2160 |
| Number of pages | 4 |
| Journal | Bulletin of the American Meteorological Society |
| State | Published - 2004 |
| Event | Combined Preprints: 84th American Meteorological Society (AMS) Annual Meeting - Seattle, WA., United States Duration: Jan 11 2004 → Jan 15 2004 |