Characteristic fields associated with tropical cyclone formations
Cheung, Kevin K.
Elsberry, Russell L.
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Tropical cyclone (TC) formation remains to be one of the unresolved problems in tropical meteorology, and its prediction is still a great challenge to forecasters. The difficulties come from the fact that the large-scale environment and the mesoscale disturbances are interacting in complicated ways such that determining which side is the dominating factor is not always possible. Variability in the atmospheric circulation (e.g., the El Niño Southern Oscillation that affects the large-scale flow and the intraseasonal oscillations that may modulates the spatial/temporal distributions of mesoscale disturbances) further increases the difficulty to understand and predict the variability in TC activity.