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Ducted coastal ridging over S.E. Australia
Author(s) -
Holland Greg J.,
Leslie Lance M.
Publication year - 1986
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49711247310
Subject(s) - ridge , mesoscale meteorology , clockwise , geology , climatology , range (aeronautics) , kelvin wave , geography , enhanced data rates for gsm evolution , confluence , oceanography , meteorology , rotation (mathematics) , geometry , telecommunications , paleontology , materials science , computer science , programming language , mathematics , composite material
The intense and rapidly established coastal ridging which is a regular occurrence over south‐eastern Australia during the warm seasons, is investigated using a detailed case study and mesoscale numerical model simulations. We suggest that the ridge is initiated by a forced Kelvin‐type edge wave which forms on the south‐western edge of the Great Dividing Range and is ducted, in an anticlockwise sense, around the coast. The ridge is then stabilized by inertial modification and decays over a synoptic time scale of a few days. Our results apply to similar phenomena in other parts of the world, notably southern Africa and South America.