| Description: |
Since the 1950s annual rainfall over southeastern Australia (SEA) has decreased considerably with a maximum decline in the austral autumn season (March-May), particularly from 1980 onward. The understanding of SEA autumn rainfall variability, the causes, and associated mechanisms for the autumn reduction remain elusive. In this paper a new plausible mechanism for SEA autumn rainfall variability is described, and the dynamics for the reduction are hypothesized. [Source: Journal of Climate]
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