Cross-Equatorial Flow and the Hadley Cell
The Bolin Centre for Climate Research, Stockholm University,
The usual picture of the winter and summer Hadley Cells gives the impression of air moving smoothly from one hemisphere to the other in a giant overturning circulation. The classic theories of the Hadley Cell are based on angular momentum conservation with the additional consideration of some mixing. However, a constraint based on both thermodynamics and dynamics means that air cannot move easily from one hemisphere to the other. Near the surface, topographic and frictional processes, aided by diabatic processes, are able to overcome the constraints. However in the upper troposphere, there are no equivalent frictional processes.
|Speaker:||Sir, Professor Brian Hoskins, Imperial College London.|
|Time:||Thursday 12 May, 2016, 10h00–11h00|
|Place:||Nordenskiöld room, Geoscience Building|
|Download PDF file|
|Download pdf file|