The formation of baric depressions near the Alps

Abstract

Available knowledge about the formation of baric lows
near the Alps is critically reviewed. Emphasis is laid on problems that
require further investigation. A distinction between the process of formation
of local depressions in the baric field and real cyclogenesis (generation of
cyclonic vorticity) in the lee of the Alps is suggested on the basis of theoretical
considerations about the role of inertial effects in rotating flows past obstacles.
Finally, the general importance of the problem of secondary flows
in the interaction with obstacles is emphasized.