THE INFLUENCE OF PRESSURE DISTURBANCES ON THE WIND FIELD PATTERN IN THE CENTRAL PART OF A TYPHOON

E. M. Dobryshman

The interaction between horizontal deformation of the pressure field, centripetal acceleration, and advection and their response to pressure disturbances (forcing) in the central part of a typhoon are studied. Several exact solutions of nonlinear hydrodynamic equations for two- and three-dimensional cases in cylindrical coordinates are found. Solutions are obtained in which axisymmetric forcing produces a three-dimensional wind field depending on the polar angle. A brief analysis of the solutions is made and their illustrations are given. Some of the wind field patterns resemble real wind fields in the eye and eyewall. The Eliassen assumption that horizontal deformation plays an important role in formation of the typhoon eye is confirmed.

Joomla templates by a4joomla