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Tropical Cyclone Motion. Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)

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Presentation on theme: "Tropical Cyclone Motion. Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)"— Presentation transcript:

1 Tropical Cyclone Motion

2 Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)

3 Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)

4 Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)

5 Climatology of Tropical Cyclone Motion (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.)

6 Motion by Steering Flow (Figure obtained from Chan (2005). © 2005, Annual Reviews.)

7 Steering Flow: Layer Determination (Figure obtained from

8 Steering Flow: hPa Example (Figure obtained from

9 Steering Flow: hPa Example (Figure obtained from

10 Beta Effect (Figure obtained from Chan (2005). © 2005, Annual Reviews.) LINEARNON-LINEAR t = 0 h t = 36 h t = 72 h

11 Beta Effect (Figure obtained from Chan (2005). © 2005, Annual Reviews.)

12 Beta Effect (Figure obtained from Global Perspectives on Tropical Cyclones, Ch. 4, © 1995 WMO.) streamfunction meridional wind

13 Non-Uniform Horizontal Flow N zonal wind Case 1: Linear Horizontal Shear, No Flow Over TC Center

14 Non-Uniform Horizontal Flow N zonal wind Case 2: Non-Linear Horizontal Shear, Flow Over TC Center

15 Non-Uniform Horizontal Flow N zonal wind Case 1, Except With Beta Gyres Horizontal tilt of vortex strengthens anticyclonic beta gyre to NE but weakens cyclonic beta gyre to SW

16 Non-Uniform Horizontal Flow N zonal wind Case 2, Except With Beta Gyres Horizontal tilt of vortex weakens anticyclonic beta gyre

17 Vertical Wind Shear Effect on Motion (Figure obtained from Chan (2005). © 2005, Annual Reviews.)

18 Fujiwhara Rotation (Figure obtained from Chan (2005). © 2005, Annual Reviews.) earth-relative center of mass-relative


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