Tropical Cyclone Motion in the Presence of Surface Discontinuity and Topography

Add to your list(s) Download to your calendar using vCal

• Johnny Chan (City University of Hong Kong, Trinity College Cambridge)
• Monday 09 November 2015, 13:00-14:00
• MR5, Centre for Mathematical Sciences.

If you have a question about this talk, please contact Doris Allen.

In this talk, the basic physics of tropical cyclone motion will first be reviewed. The major part of the talk will focus on how such movement is modified when a tropical cyclone encounters a surface discontinuity such as when it is about to make landfall. For a flat land that has a much higher friction than that of the ocean, the cyclone is “attracted” to the region of the highest roughness. Such an attraction can be explained by examining the various terms of the vorticity equation. In the presence of topography, the cyclone can be deflected substantially with sometimes a looping motion. These changes in the cyclone movement result from the variations in the relative contributions by different terms in the potential vorticity tendency equation. The extent to which such changes occur depend on the proximity of the cyclone to the topography, the size of the cyclone and the background environmental flow.

This talk is part of the Quantitative Climate and Environmental Science Seminars series.

This talk is included in these lists:

• All CMS events
• All Talks (aka the CURE list)
• CMS Events
• Cambridge Environment
• Climate Science Seminars within Cambridge
• DAMTP Fluids Talks
• DAMTP info aggregator
• Featured lists
• Interested Talks
• MR5, Centre for Mathematical Sciences
• Quantitative Climate and Environmental Science Seminars
• Queens' College Politics Society
• Talks related to atmosphere and ocean dynamics and climate science
• bld31
• ps635

Note that ex-directory lists are not shown.