Abstract
Stationary and stable baroclinic eddies have been produced in an anticlockwise rotating fluid annulus subject to internal heating and outer-wall heating. Thermal and dynamical structures of the flows dominated by such eddies of wavenumber 3 are presented.
Characteristics of the flow field are as follows.
1) Distinct and elliptical anticyclonic eddies are observed at the top-surface.
2) The mean zonal flow near the mid-radius has a parabolic profile in the vertical direction with a westerly maximum below the mid-level.
3) Cyclonic and anticyclonic disturbances have their centers at the places almost coinciding with the westerly maximum.
4) There exist a warm core above the center of the cyclonic disturbance and a cold anomaly below the center.
5) Upward motion locates to the west of the warm core and downward motion to the east.
It can be pointed out that these features of the stationary cyclonic disturbance are similar to the characteristics of a monsoonal mid-tropospheric cyclone, which is also quasi-stationary (e.g. Miller and Keshavamurthy, 1968; Krishnamurti and Hawkins, 1970).
