'willy willy' is not a correct or standard phrase in written English.
'Willy willy' is actually Australian slang for a dust devil or small swirling wind. An example sentence is, "We watched from a distance as the willy willy swept across the beach."
Analysis of the spatial distribution of willy-willy initiation sites with respect to vegetation cover in the 35 km2 study area showed that willy willy frequency increases with decreasing surface cover.
The observation of 557 willy-willies, made over a 20 day census period in summer, indicates that willy-willy frequency varies according to local meteorological conditions.
The results from this analysis, considered with respect to the characteristics of the surface the willy-willy traversed during sampling, show that the sediment load carried in the willy-willies increases with decreasing vegetation cover.
An extensive census and sampling program conducted in semiarid north-west New South Wales, Australia, has provided quantitative information on willy-willy (dust devils) characteristics and their environmental range.
The increased frequency of willy-willies with decreasing vegetation, could, over time, make willy-willies a potent mechanism in the evolution of the Australian landscape.
Willy-willies (dust devils) are local convective circulations that characteristically arise in arid and semiarid environments.
Willy-willies were also found to be restricted to wind speeds between 1.5 and 7.5 m s−1.
It flows only after exceptional cyclonic storms ("willy-willies") and may be several miles wide during high flood.
This study conducted in semiarid north-west New South Wales, Australia, provides quantitative information on the sediment entrainment and transport characteristics of willy-willies.
