Summary
The dynamics
of Walker-type circulations are thermally direct, and can be thought
of as a warming atmospheric column coupling with a cooling column.
Walker-type ciruclations occur on a large-scale, and effect climate variations. They occur in the meridional
direction as a Hadley Cell and a Monsoon Cell, which can be
zonally averaged into a Mean Meridional Circulation (MMC);
and in the zonal direction as a Walker, Atlantic Walker, and Transverse
Monsoon Cell which can be meridionally averaged into a Mean Zonal
Circulation (MZC). Observations of Walker-type cooling and warming
columns can be seen using data of vertically integrated
heating and vertical velocities.
The data can also be used analyze mass continuity in Walker-type cells
and determine the closed nature of the circulaion.