Articles | Volume 16, issue 23
Atmos. Chem. Phys., 16, 14925–14936, 2016
Atmos. Chem. Phys., 16, 14925–14936, 2016

Research article 02 Dec 2016

Research article | 02 Dec 2016

Revisiting the steering principal of tropical cyclone motion in a numerical experiment

Liguang Wu and Xiaoyu Chen

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Subject: Dynamics | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Bender, M. A.: The effect of relative flow on the asymmetric structure in the interior of hurricanes, J. Atmos. Sci., 54, 703–724, 1997.
Bowie, E. H.: Formation and movement of West Indian hurricanes. Mon. Weather Rev., 50, 173-179, 1922.
Carr, L. E. and Elsberry, R. L.: Observational evidence for predictions of tropical cyclone propagation relative to steering, J. Atmos. Sci., 47, 542–546, 1990.
Chan, J. C.-L.: An observation al study of physical processes responsible for tropical cyclone motion, J. Atmos. Sci., 41, 1036–1048, 1984.
Chan, J. C.-L. and Gray, W. M.: Tropical cyclone motion and surrounding flow relationship, Mon. Weather Rev., 110, 1354–1374, 1982.
Short summary
The study shows that the conventional steering calculated over a certain radius from the tropical cyclone center in the horizontal and a deep pressure layer in the vertical is not literally the steering or the advection of the symmetric potential vorticity component associated with a tropical cyclone by the asymmetric flow. The trochoidal motion around the mean tropical cyclone track cannot be accounted for by the effect of the conventional steering.
Final-revised paper